JP6365727B2 - Authentication determination apparatus and authentication determination method - Google Patents

Description

  The present invention relates to an authentication determination apparatus and an authentication determination method.

  An authentication device that authenticates a user based on a plurality of information (gestures and keys) is disclosed in Patent Document 1.

JP 2010-176487 A

  However, since the authentication device disclosed in Patent Document 1 authenticates a user based on a plurality of types of predetermined information, there is a problem that the security of authentication is not sufficient. Further, the authentication device disclosed in Patent Document 1 has a problem that it lacks convenience because it is necessary to prepare a predetermined object (key) for authentication.

  The present invention has been made in view of the above points, and an object of the present invention is to provide an authentication determination device and an authentication determination method that are convenient and highly secure.

One embodiment of the present invention is an imaging unit that images a target including a user, and an input range determination that determines an information input range in which information can be input based on an operation of the user captured by the imaging unit. And a recognition unit for recognizing the state and position of the target imaged by the imaging unit in the information input range, and the state and position of the target recognized by the recognition unit as authentication keys. A determination unit that determines whether or not the authentication is successful by comparing with information on the state and the position, and a control unit that performs a predetermined process when the authentication is successful, and the control unit succeeds in the authentication by the determination unit and when it is determined, which is to that authentication judging device acquires information drawn on the surface of the object by imaging with the imaging unit.

One embodiment of the present invention is an authentication determination method executed by an authentication determination apparatus. In the authentication determination method , information on which a target including a user is imaged and information can be input based on the captured user action Determining an input range; recognizing a state and position of the object imaged in the information input range; and using a state and position of the recognized object as an authentication key, a predetermined state and position An authentication determination including: determining whether the authentication is successful by comparing with information about the information; and acquiring information drawn on the surface of the target by capturing an image with an imaging unit when the authentication is successful Is the method.

  According to the present invention, the authentication determination device and the authentication determination method are convenient and safe.

It is a block diagram which shows the structural example of the authentication apparatus in one Embodiment of this invention. It is a figure which shows the usage example of an authentication apparatus in one Embodiment of this invention. It is a figure which shows the example of the storage parameter information in one Embodiment of this invention. It is a figure which shows the example of correlation information in one Embodiment of this invention. It is a flowchart which shows the example of an operation | movement procedure of an authentication apparatus in one Embodiment of this invention. It is a block diagram which shows the structural example of the imaging irradiation apparatus in one Embodiment of this invention.

  An embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram illustrating a configuration example of the authentication apparatus. The authentication device 100 is provided at a predetermined position in the real space (for example, the ceiling of the kitchen). The authentication device 100 may be provided indoors or outdoors. The authentication device 100 includes an imaging unit 101, a sound collection unit 102, a recognition unit 110, a storage unit 120, an authentication unit 130, a control unit 140, an output unit 150, an irradiation unit 153, and a registration unit 160. Is provided.

The imaging unit 101 captures an object located around the authentication device 100. The imaging unit 101 is, for example, a camera that captures an image with light in at least a visible light wavelength band. The target is a tangible object that can be imaged by the imaging unit 101, such as a person (user) or an object.
The sound collection unit 102 is, for example, a microphone and collects sound from around the authentication device 100.

  The recognition unit 110 recognizes a target based on an image around the authentication device 100 captured by the imaging unit 101. Here, the recognition unit 110 may recognize a user's operation (action) as an example of a target. Note that the movement is a movement that can be imaged by the imaging unit 101, for example, a movement shape of a hand (Janken etc.), movement of the hand, rotation (posture) of the hand, or gesture. The recognition unit 110 may recognize the user's palm as a target. The recognition unit 110 recognizes the user's voice as a target based on sounds around the authentication device 100 collected by the sound collection unit 102.

  The recognition unit 110 uses the position of the projection plane irradiated with light (cursor light) indicating a range (hereinafter referred to as “information input range”) in which information (for example, an image) can be input as a target. Recognize based on user action and voice. The projection plane is, for example, a desk top, wall, or floor. The recognizing unit 110 recognizes the width of a two-dimensional range (spot) irradiated with light indicating the information input range based on the user's operation and voice as a target. The recognition unit 110 outputs information indicating the position of the projection plane and information indicating the width of the two-dimensional range irradiated with light to the control unit 140.

  The recognition unit 110 recognizes a target state and position in a three-dimensional range (for example, a conical information input range) irradiated with light indicating the information input range. Here, the state is a mode in which the imaging unit 101 can capture an image, for example, an operation, a posture, a shape, a pattern, or a color. The state may be a sound stored by the sound collection unit 102. The state may be temperature or humidity. The state may be not only a static state at a certain point in time of a person or an object, but also a continuous dynamic mode (user's operation). The state may be an environment such as weather (for example, rain) or temperature.

  The recognizing unit 110 outputs parameter information (hereinafter referred to as “recognition parameter information”) indicating association between the recognized state and position of the target to the authentication unit 130, the control unit 140, and the registration unit 160. In addition, the recognition unit 110 may recognize the time when the target state and position are recognized. The recognition unit 110 may output the parameter information indicating the association between the recognized state and position of the target and the time at the time of recognition to the authentication unit 130, the control unit 140, and the registration unit 160 as recognition parameter information. Good. The recognizing unit 110 may recognize the time when the image capturing unit 101 captures an image or the time when the sound collecting unit 102 collects sound.

The storage unit 120 stores in advance parameter information (hereinafter referred to as “storage parameter information”) indicating the association between the target state and the position (environment). Here, the storage parameter information includes information indicating a state of an operation or the like that is predetermined as an operation that is not normally performed.
The operation that is predetermined as an operation that is not normally performed is an operation captured by the imaging unit 101. For example, an operation in which a user turns over a book on a gas stove device in a kitchen, and a user places a chair at a specific position in a music room. The operation of placing a plastic bottle on the chair and the operation of the user placing the pencil sharpener at a specific position in the kitchen. As this predetermined operation is an operation that is not normally performed (the correlation of the object with respect to the environment is lower), it becomes more difficult for a person other than the user to succeed in the authentication, and thus the security of the authentication increases. Details will be described later with reference to FIG.

  The storage unit 120 may store in advance the association between the states and positions of a plurality of objects as one storage parameter information used for one authentication. In addition, the storage unit 120 may store hint information (for example, images and characters) determined in advance as information serving as hints for storage parameter information. The storage unit 120 may store hint information determined in advance as information (for example, an image or a character) that serves as a hint for the storage parameter information. When the output unit 150 irradiates the projection surface with light for displaying these various types of hint information, hint information is displayed in the irradiated range on the projection surface based on control by the control unit 140. The

  Recognition parameter information is input from the recognition unit 110 to the authentication unit 130. The authentication unit 130 performs pattern matching between the recognition parameter information and the storage parameter information stored in advance in the storage unit 120. If the recognition parameter information matches the stored parameter information, the authentication unit 130 makes the authentication successful. The authentication unit 130 outputs information indicating whether or not the authentication is successful to the control unit 140. Note that the authentication unit 130 may determine the success or failure of one authentication based on information obtained by combining a plurality of storage parameter information.

  Information indicating the position of the projection plane and information indicating the size of the range irradiated with light are input from the recognition unit 110 to the control unit 140. Further, information indicating whether or not the authentication is successful is input from the authentication unit 130 to the control unit 140. The control unit 140 generates an image signal for displaying information, and outputs the generated image signal to the output unit 150.

  When the information indicating whether or not the authentication is successful indicates that the authentication is successful, the control unit 140 executes a predetermined process that is permitted to be executed only when the authentication unit 130 succeeds in the authentication. To do. For example, as the predetermined processing, the control unit 140 generates light indicating the information input range based on information indicating the position of the projection plane and information indicating the width of the two-dimensional range irradiated with light. The irradiation unit 153 is controlled so as to be irradiated. On the other hand, when the information indicating whether or not the authentication has succeeded indicates that the authentication has failed, the control unit 140 outputs the output unit so that the light for displaying the hint information is irradiated on the projection surface. 150 is controlled.

  The irradiation unit 153 emits light indicating the information input range (cursor light) so that the light indicating the information input range is irradiated onto the projection plane with the width of the above-described two-dimensional range according to control by the control unit 140. Irradiate the projection surface.

  The output unit 150 includes a light source and an optical system. Further, the output unit 150 may include a speaker that outputs sound. An image signal for displaying information is input from the control unit 140 to the output unit 150. The output unit 150 irradiates the projection surface with light (light based on an image signal) for displaying information (for example, an image) via the optical system based on control by the control unit 140. That is, the output unit 150 emits light for displaying information when displaying (outputting) information.

  The output unit 150 may be integrated with the irradiation unit 153. When the output unit 150 recognizes a target (inputs information), the output unit 150 may emit light (cursor light) indicating an information input range as the irradiation unit 153.

  The registration unit 160 registers (stores) the recognition parameter information indicating the correspondence between the state and position of the target recognized by the recognition unit 110 as the storage parameter information. When registering the recognition parameter information as storage parameter information, the registration unit 160 may register information indicating time and information indicating environment (described later with reference to FIG. 3) as storage parameter information. .

  FIG. 2 shows a usage example of the authentication device. The user 200 authenticates an instruction for displaying the image of the cursor 152 on the projection plane 300 using a voice, a gesture, or the like in a real space (for example, a kitchen or a music room) provided with the authentication device 100 on the ceiling. Input to the device 100.

  For example, the user utters “cursor” near the authentication device 100. Along with the utterance, the user instructs the authentication device 100 by pointing the position of the projection plane 300 where the image of the cursor 152 is to be displayed. For example, the cursor 152 may be displayed on the inner wall, floor, and ceiling of the kitchen in which the authentication device 100 is provided. In addition, the width corresponding to the bottom surface of the three-dimensional range irradiated with the light 151, that is, the width of the cursor 152 displayed on the projection plane 300 is, for example, a width corresponding to the interval between the index finger of the user 200 and the thumb. May be. The shape of the cursor 152 is not particularly limited.

By using the position information as a part of the authentication key, the authentication device 100 can use the stored parameter information as a strong authentication key.
FIG. 3 shows an example of storage parameter information. The storage parameter information is table information in which the target, the state of the target, and the three-dimensional coordinates of the target located in the space are associated with each other. The storage parameter information is associated with information indicating the time when the information is registered. In addition, the storage parameter information is associated with information indicating the environment in which the target is located when the information is registered. Here, the environment is an area where the object is placed when the recognition unit 110 recognizes. That is, the environment may be, for example, a room unit such as a living room, a bedroom, and a kitchen if it is indoors in a house, or may be a partial area such as a gas stove device, a sink, and a refrigerator in the kitchen.

  Returning to FIG. 2, a specific example when the authentication apparatus 100 authenticates the user 200 will be described. For example, it is assumed that the user 200 places a specific book to be used as a part of the authentication key on the projection plane 300 defined for the gas stove device in the kitchen. The authentication device 100 displays a predetermined logo (for example, a logo for prompting the user to perform an operation desired to be an authentication key) as a cursor 152 at the position where the authentication device 100 is placed. Furthermore, it is assumed that the user 200 performs an operation of turning over a book on a gas stove device, for example, as an operation desired to be an authentication key. The authentication device 100 causes the storage unit 120 to store storage parameter information as an authentication key including information on this operation. Thereafter, when the user 200 similarly performs the operation of turning the book over on the gas stove device, the authentication parameter 100 and the stored parameter information match, so that the authentication of the user 200 is successful.

  Further, by using the time information as a part of the authentication key, the authentication device 100 can use the stored parameter information as a strong authentication key. For example, it is assumed that the user 200 places a specific book to be used as a part of the authentication key around 2:59 pm on the projection plane 300 defined in the gas stove apparatus in the kitchen. The authentication device 100 displays a predetermined logo (for example, a logo for prompting the user to perform an operation desired to be an authentication key) as a cursor 152 at the position where the authentication device 100 is placed. Furthermore, it is assumed that the user 200 performs an operation of turning over a book on a gas stove device at 3:00 pm, for example, as an operation desired as an authentication key. The authentication device 100 causes the storage unit 120 to store storage parameter information as an authentication key including information on this operation. Thereafter, the authentication device 100 authenticates the user 200 because the recognition parameter information matches the stored parameter information when the user 200 performs the operation of turning the book over on the gas stove device in the same manner at 3 pm. Is a success.

  For example, the control unit 140 may execute the following process as the predetermined process that is permitted to be executed only when the authentication unit 130 succeeds in the authentication. Suppose that the user 200 places an object (for example, a book, a pencil sharpener, or a coffee can of a brand that can be purchased only in a specific place) that the authentication apparatus 100 is to read into the range where the cursor 152 is displayed. To do. When the object placed in the range where the cursor 152 is displayed is an object on which information by characters, images, or the like is drawn on the surface, the authentication unit 130 captures the object and performs information recognition through image recognition. To get.

  On the other hand, when the target placed in the range where the cursor 152 is displayed is an electronic medium, the authentication unit 130 (communication unit) attempts communication connection with the electronic medium. When the communication connection between the electronic medium and the authentication unit 130 is not possible, the output unit 150 irradiates the projection plane 300 with light (for example, image light or monochromatic light) for displaying information indicating that fact. Further, the output unit 150 collects information about the electronic medium from a communication line or the like, and projects light (for example, image light or monochromatic light) for displaying information indicating the collected information like a three-dimensional dictionary. The surface 300 may be irradiated. Further, the control unit 140 controls the output unit 150 to output content information such as images and sounds stored in the storage unit 120 in accordance with an instruction from the user. These processes are examples of the predetermined process.

Next, correlation information will be described.
FIG. 4 shows an example of correlation information. The correlation information is table information in which a target recognized by the recognition unit 110, an environment placed when the target is recognized, and a correlation value indicating these correlations are associated with each other. The correlation information is information used for registering storage parameter information with high security of authentication. In FIG. 4, as an example, the environment and the correlation value are associated with each of the target “book”, the target “pencil sharpener”, and the target “coffee can of company A”. The correlation value is a parameter indicating the frequency with which the target is used in the environment associated with the correlation information. The correlation value is standardized in advance so as to have a maximum value of 1, for example.

  The correlation information may be determined in advance and stored in the storage unit 120. For example, the frequency at which the target “book” is used in the environment “living” is considered to be higher than the frequency at which the target “book” is used in the environment “kitchen”. For this reason, in FIG. 4, the correlation value of the environment “kitchen” associated with the target “book” is set in advance to a value smaller than the correlation value of the environment “living” associated with the target “book”. ing.

  The authentication unit 130 (see FIG. 1) performs authentication using the storage parameter information registered based on the correlation information including the correlation value between the target and the environment of the target. Further, for example, the authentication unit 130 may perform authentication using the storage parameter information registered based on the correlation information including the correlation value between the target and the state of the target. In this case, the correlation value is determined in advance, for example, according to the frequency with which the target “book” is brought into a predetermined state (for example, an inverted state, a standing state, or a rotated state). Further, for example, the authentication unit 130 may perform authentication using the storage parameter information registered based on the correlation information including the correlation value between the target and the position of the target. Note that the authentication unit 130 may perform authentication using the storage parameter information registered based on the plurality of combined correlation information.

  Next, processing for registering storage parameter information based on correlation information will be described. Hereinafter, the threshold value stored in advance in the storage unit 120 will be described as an example of 0.20.

  The authentication unit 130 determines the environment of the target associated with the coordinates based on the coordinates (position) of the target recognized by the recognition unit 110. Further, the authentication unit 130 acquires a correlation value associated with the determined environment from the correlation information (see FIG. 4). The authentication unit 130 compares the correlation value acquired from the correlation information with a threshold value stored in advance in the storage unit 120. The authentication unit 130 outputs information indicating the comparison result to the control unit 140. The control unit 140 controls the output unit 150 based on information indicating the comparison result.

  The output unit 150 outputs character information or the like indicating whether or not the storage parameter information with sufficient security for authentication has been registered in accordance with the control by the control unit 140. More specifically, when the correlation value acquired from the correlation information exceeds the threshold value, the control unit 140 outputs character information indicating that the storage parameter information with sufficient security of authentication could not be registered. Output from the unit 150. On the other hand, when the correlation value acquired from the correlation information is equal to or less than the threshold value, the control unit 140 causes the output unit 150 to output character information indicating that the storage parameter information with sufficient security of authentication has been registered.

  For example, when the environment where the object “book” recognized by the recognition unit 110 is placed is “bedroom”, the authentication unit 130 associates the object “book” recognized by the recognition unit 110 with the environment “bedroom”. Is obtained from the correlation information. Further, the authentication unit 130 compares the correlation value 0.24 acquired from the correlation information with a threshold value 0.20 stored in advance in the storage unit 120.

  The correlation value 0.24 corresponding to the environment “bedroom” associated with the target “book” recognized by the recognition unit 110 exceeds the threshold value 0.20 stored in the storage unit 120 in advance. In this case, since the target “book” is frequently used for the environment “bedroom”, the storage parameter information registered by the registration unit 160 is not sufficiently secure in authentication. This is because it is not difficult for a person other than the user to succeed in authentication as the target environment (predetermined operation) is an operation that is usually performed (the correlation of the target with the environment is high).

  Therefore, when the storage parameter information with sufficient safety of authentication cannot be registered, the control unit 140 stores the recognition parameter information including at least one of the number of objects, the state of the objects, and the position of the objects. Impose the user to additionally register as parameter information. Therefore, the control unit 140 causes the output unit 150 to output character information or the like indicating that the storage parameter information with sufficient security for authentication could not be registered. The user who visually recognizes the character information or the like additionally registers a new target as storage parameter information by the user's action (action). For example, the user may additionally register a new object “pencil sharpener” used for authentication together with the object “book” as storage parameter information. The registration unit 160 can register storage parameter information with sufficient security of authentication by additionally registering a new target, a state and a position (environment) of the target in the storage parameter information.

  Further, for example, when the environment where the target “book” recognized by the recognition unit 110 is placed is “kitchen”, the authentication unit 130 associates the environment “book” associated with the target “book” recognized by the recognition unit 110. A correlation value 0.12 corresponding to “kitchen” is acquired from the correlation information. Further, the authentication unit 130 compares the correlation value 0.12 acquired from the correlation information with a threshold value 0.20 stored in advance in the storage unit 120.

  The correlation value 0.12 corresponding to the environment “kitchen” associated with the target “book” recognized by the recognition unit 110 is equal to or less than the threshold value 0.20 stored in advance in the storage unit 120. In this case, since the target “book” is less frequently used for the environment “kitchen”, the storage parameter information registered by the registration unit 160 has sufficient security for authentication. This is because it is more difficult for a person other than the user to succeed in the authentication as the target environment (predetermined operation) is not an operation that is normally performed (the correlation of the target with the environment is low). The control unit 140 causes the output unit 150 to output character information or the like indicating that the storage parameter information with sufficient security for authentication has been registered.

  Furthermore, the control unit 140 may limit a predetermined process that can be executed when the authentication is successful depending on the safety of the storage parameter information used for the authentication. Here, a plurality of grades (for example, confidentiality “high”, “low”) may be defined for the predetermined processing. The control unit 140 determines the grade (rank) of processing that can be executed by the control unit 140 according to the safety of the storage parameter information used for authentication.

  For example, when the comparison result indicates that the correlation value exceeds the threshold value, that is, when the security of the storage parameter information used for authentication is insufficient, the control unit 140 has the confidentiality grade. Only the predetermined process defined as “low” can be executed. Here, the predetermined process in which the confidentiality level is set to “low” is a process having a low relationship with personal information, such as an image display process, a music playback process, and the like.

  On the other hand, when the comparison result indicates that the correlation value is less than or equal to the threshold value, that is, when the security of the storage parameter information used for authentication is sufficient, the control unit 140 determines that the confidentiality rating is “low”. The predetermined processing defined as “” and the predetermined processing defined as “high” as the confidentiality grade can be executed. Here, the predetermined process in which the confidentiality class is set to “high” is a process having a high relationship with personal information, for example, an Internet service display in SNS (Social Networking Service) or the like. is there. A plurality of stepwise thresholds and grades may be defined as the thresholds and grades.

Next, an example of the operation procedure (authentication process) of the authentication apparatus will be described.
FIG. 5 is a flowchart illustrating an example of an operation procedure of the authentication apparatus.
(Step S <b> 1) The recognition unit 110 recognizes a target (for example, a user or an object) based on an image around the authentication device 100 captured by the imaging unit 101. The recognition unit 110 recognizes the user's voice based on the sound around the authentication device 100 collected by the sound collection unit 102. The recognition unit 110 recognizes the position of the projection plane 300 irradiated with the light 151 based on the user's operation and voice. Here, in accordance with the user's operation, information indicating an image obtained by imaging the target is input from the imaging unit 101 to the recognition unit 110. In addition, information indicating sound such as voice is input from the sound collection unit 102 to the recognition unit 110 according to the user's pronunciation. The output unit 150 irradiates the position of the recognized projection plane 300 with the light 151, and causes the projection plane 300 to display the image of the cursor 152 with the irradiated light 151.

  (Step S <b> 2) The recognizing unit 110 recognizes the target state and position and the current time in the range where the light 151 is irradiated.

  (Step S3) The authentication unit 130 performs pattern matching between the recognition parameter information and the storage parameter information, and determines whether or not the recognition parameter information and the storage parameter information match. When the recognition parameter information matches the stored parameter information (step S3: Yes), the authentication unit 130 proceeds with the process to step S4. On the other hand, when the recognition parameter information and the stored parameter information do not match (step S3: No), the authentication unit 130 proceeds with the process to step S5.

(Step S4) The authentication unit 130 makes the authentication successful and ends the authentication process. When the authentication unit 130 determines that the authentication is successful, the control unit 140 executes a predetermined process.
(Step S5) The authentication unit 130 determines that the authentication has failed, and ends the authentication process. The authentication unit 130 may re-execute the authentication process.

  As described above, the authentication apparatus 100 includes the imaging unit 101 that captures an image of the object, the state of the imaged object (for example, a book) (for example, an operation in which the user flips the book) and the position (for example, a gas stove device in a kitchen) A recognition unit 110 (see FIG. 1) for recognizing the above), and a storage unit 120 (see FIG. 1) for storing storage parameter information (see FIG. 3) indicating the association between the state and position of the target in advance. , Recognition parameter information indicating an association between the state and position of the object recognized by the recognition unit 110 (for example, an operation in which a user turns over a book on a gas stove device in a kitchen), and the storage unit 120 stores the recognition parameter information in advance. When the stored parameter information matches, the authentication unit 130 (refer to FIG. 1) that makes the authentication successful is provided.

  The authentication method is an authentication method in the authentication apparatus 100, in which the imaging unit 101 captures an object, the recognition unit 110 recognizes the state and position of the captured object, and the authentication unit 130. Is the recognition parameter information indicating the association between the state and position of the object recognized by the recognition unit 110, and the storage parameter information indicating the association between the state and position of the object stored in advance in the storage unit 120 (see FIG. 3), the authentication is successful.

  With this configuration, the authentication unit 130 associates the recognition parameter information indicating the association between the state and the position of the target recognized by the recognition unit 110 and the association between the state and the position of the target stored in the storage unit 120 in advance. The authentication is successful if the storage parameter information indicating the same. Thereby, the authentication device and the authentication method are convenient and high in safety.

  That is, the recognized target position in the real space (for example, kitchen, music room) is associated with the recognized target state. That is, information indicating a specific position in the real space is a part of the recognition parameter information (authentication key). The recognition parameter information is pattern-matched with storage parameter information as a predetermined authentication key. Therefore, if the subject is not in that state at that location, authentication is not successful. On the other hand, a user who knows that the subject is part of the authentication key at that position where the subject is not usually in that state. Authentication can be successful.

  For example, when the storage unit 120 stores storage parameter information in which a user does not usually have a position and a position, the authentication device 100 can be used as long as the user does not bring a predetermined can from anywhere. The authentication parameter information and the stored parameter information can be used as a strong authentication key so that the authentication is not successful. More specifically, for example, the storage unit 120 stores storage parameter information in which a can of a brand that can be purchased only at a specific location and a position (placement location) are associated with each other, whereby the authentication device 100 can prevent authentication from succeeding unless the user brings the can from somewhere.

  Further, for example, when the storage unit 120 stores the storage parameter information in which the environment information such as the weather is associated with the position, the authentication device 100 determines that the authentication is successful unless the predetermined weather occurs. Therefore, the authentication parameter information and the storage parameter information can be used as a strong authentication key. More specifically, for example, the storage unit 120 stores storage parameter information in which rain is associated with the user's position, so that the authentication device 100 has the rain at the user's position as rain. As long as there is no authentication, the authentication can not be successful.

  In addition, the authentication device 100 includes an irradiation unit 153 that emits light indicating an information input range as a range in which information can be input, and the recognition unit 110 recognizes the state and position of the target in the information input range. May be.

  Further, the recognition unit 110 recognizes the time when the state and position of the target are recognized, and the storage unit 120 displays information indicating the association between the state and position of the target and the time as the storage parameter information And the authentication unit 130 includes recognition parameter information indicating an association between the state and position of the target recognized by the recognition unit 110 and time, and the storage parameter information stored in advance in the storage unit 120. May be determined to be successful.

  With this configuration, the authentication unit 130 includes recognition parameter information indicating an association between the state and position of the target recognized by the recognition unit 110 and time, and the state and position of the target stored in advance in the storage unit 120. Authentication is successful if the stored parameter information indicating the association between the time and the time matches. Thereby, the authentication device and the authentication method are convenient and high in safety.

  That is, the state (for example, gesture) of the recognized target (for example, the user himself / herself, a predetermined object), and the position of the recognized target (for example, on the gas stove device) in the real space (for example, kitchen, music room) Is further associated with the current time. That is, a specific time is a part of the authentication key. The recognition parameter information indicating this association is pattern-checked with storage parameter information as a predetermined authentication key. Therefore, if the subject is not in that state at that location at the current time, authentication is not determined to be successful. On the other hand, a user who knows that the current time is part of the authentication key can successfully authenticate by placing the target at that position at the current time that is part of the authentication key. Can be made.

  The authentication device 100 may include a registration unit 160 that includes information indicating the state and position of the target recognized by the recognition unit 110 in the storage parameter information and registers the information in the storage unit 120.

  The registration unit 160 may include information indicating the voice as the target state recognized by the recognition unit 110 in the storage unit 120 by including the information in the storage parameter information.

  The registration unit 160 stores a plurality of the recognition parameter information used for one authentication in accordance with the correlation information (see FIG. 4) indicating the correlation between the target and the position (environment) of the target. It may be registered as information.

  The authentication device 100 includes a control unit 140 that executes predetermined processing when the authentication unit 130 succeeds in authentication, and the control unit 140 determines whether the target recognized by the recognition unit 110 and the environment where the target is located. The predetermined processing that can be executed when the authentication unit 130 succeeds in authentication may be determined according to correlation information indicating the correlation (see FIG. 4).

The storage unit 120 may store hint information determined in advance as information serving as a hint for the storage parameter information.
The recognition unit 110 may recognize at least one of the movement, sound, posture, shape, pattern, color, temperature, and humidity of the target as the state of the target.

  The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and includes designs and the like that do not depart from the gist of the present invention.

  For example, the imaging unit 101 and the irradiation unit 153 of the present embodiment (each embodiment described above) may have a configuration in which the optical system of the imaging unit 101 and the optical system of the irradiation unit 153 are shared. Hereinafter, an apparatus including the imaging unit 101 and the irradiation unit 153 in which the optical system is integrally formed is referred to as an imaging irradiation device C1.

  FIG. 6 is a block diagram illustrating a configuration example of the imaging irradiation apparatus. The imaging irradiation device C1 includes an irradiation light generation unit C12, an input / output light separation unit C131, an optical unit C132, and a solid-state imaging unit C141. The irradiation light generation unit C12 corresponds to the irradiation unit 153 in FIG. Further, the solid-state imaging unit C141 corresponds to the imaging unit 101 in FIG.

The irradiation light generation unit C12 includes a light source, generates light representing an image to be irradiated based on control from the control unit 140, and outputs the generated light.
The input / output light separating unit C131 is provided on the optical path between the optical unit C132 and the irradiation light generating unit C12 and on the optical path between the optical unit C132 and the solid-state imaging unit C141. The incoming / outgoing light separation unit C131 separates the optical path of the outgoing light emitted from the imaging irradiation apparatus C1 to the outside and the incident light incident on the imaging irradiation apparatus C1 from the outside. For example, the input / output light separation unit C131 transmits at least part of the light incident from the irradiation light generation unit C12 and reflects at least part of the light incident from the optical unit C132. The input / output light separation unit C131 is, for example, a half mirror, and reflects a part of incident light and transmits a part thereof.
The optical unit C132 includes, for example, a plurality of lenses. The solid-state imaging unit C141 is, for example, a CMOS (complementary metal oxide semiconductor) image sensor.

  The light output from the irradiation light generation unit C12 passes through the input / output light separation unit C131 and is irradiated through the optical unit C132. On the other hand, the light incident on the optical unit C132 from the outside of the imaging irradiation device C1 is reflected by the input / output light separating unit C131 and then reflected by the reflecting unit C140. The light reflected by the reflection unit C140 enters the solid-state imaging unit C141 and is converted into data indicating an image by photoelectric conversion. Thereby, the imaging irradiation device C1 can share the optical unit C132 for irradiation and imaging. Moreover, the imaging irradiation apparatus C1 can make the optical axis of irradiation and imaging the same.

  As described above, the imaging irradiation apparatus C1 can make the optical axis the same for irradiation and imaging. Thereby, since the control part 140 can recognize the irradiated spot as it is with the captured image of the same optical axis as it is, it can adjust the spot of irradiated light easily. Further, since the imaging irradiation apparatus C1 uses a common optical system, space can be saved and cost can be reduced as compared with the case where the optical system is not used in common. In addition, since the user is irradiated with light from the optical system, it may be difficult for the user to notice that the image is being captured. Thereby, the user can use the authentication device 100 without being aware that the image is captured by the imaging unit (camera).

  Note that the imaging irradiation device C1 may have a function of focusing independently for irradiation and imaging. For example, the imaging irradiation apparatus C1 may be provided with a movable lens on the optical path between the optical unit C132 and the irradiation light generation unit C12. The imaging irradiation device C1 may be configured such that a movable lens is provided on the optical path between the optical unit C132 and the solid-state imaging unit C141, or the solid-state imaging unit C141 is movable. Thereby, the imaging irradiation apparatus C1 can focus on each of irradiation and imaging.

  The program for realizing the authentication device described above is recorded on a computer-readable recording medium, and the program recorded on the recording medium is read into the computer system and executed to execute the execution process. May be. Here, the “computer system” may include an OS and hardware such as peripheral devices.

  Further, the “computer system” includes a homepage providing environment (or display environment) if a WWW system is used. The “computer-readable recording medium” refers to a storage device such as a flexible medium, a magneto-optical disk, a portable medium such as a ROM and a CD-ROM, and a hard disk incorporated in a computer system. Furthermore, the “computer-readable recording medium” dynamically holds a program for a short time like a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line. In this case, it also includes those that hold a program for a certain period of time, such as volatile memory inside a computer system that serves as a server or client in that case. The program may be a program for realizing a part of the functions described above, and may be a program capable of realizing the functions described above in combination with a program already recorded in a computer system.

DESCRIPTION OF SYMBOLS 100 ... Authentication apparatus 101 ... Imaging part 102 ... Sound collection part 110 ... Recognition part 120 ... Memory | storage part 130 ... Authentication part 140 ... Control part 150 ... Output part 151 ... Light 152 ... Cursor 153 ... Irradiation part 160 ... Registration part 200 ... User DESCRIPTION OF SYMBOLS 300 ... Projection surface C1 ... Imaging irradiation apparatus C12 ... Irradiation light generation part C131 ... Input / output light separation part C132 ... Optical part C140 ... Reflection part C141 ... Solid-state imaging part

Claims (5)

An imaging unit for imaging a target including a user;
An input range determining unit that determines an information input range in which information can be input based on an action of the user imaged by the imaging unit;
A recognition unit for recognizing the state and position of the target imaged by the imaging unit in the information input range;
A determination unit that determines the success or failure of authentication by comparing the information about the predetermined state and position with the state and position of the object recognized by the recognition unit as an authentication key ;
A control unit that performs predetermined processing when the authentication is successful;
Equipped with a,
Wherein, when said determination unit by the authentication is determined to succeed, you get information drawn on the surface of the object by imaging with the imaging unit authentication judging device. The authentication determination apparatus according to claim 1,
The control unit recognizes at least one of a character and an image drawn on the surface of the object and acquires information drawn on the surface of the object. In the authentication determination device according to claim 1 or 2 ,
The determination unit determines an authentication result with a plurality of ranks related to the safety of the authentication,
The control unit has different executable processes for each rank determined by the determination unit. In the authentication determination apparatus according to any one of claims 1 to 3 ,
A voice input unit for inputting the voice of the user;
The input range determination unit determines the information input range based on the user's action imaged by the imaging unit and the voice input by the voice input unit,
The determination unit includes the target voice input by the voice input unit in the information input range in the authentication key. In the authentication determination method executed by the authentication determination device,
Imaging an object including a user;
Determining an information input range in which information can be input based on the imaged user action;
Recognizing the state and position of the object imaged within the information input range;
Using the recognized state and position of the object as an authentication key, and verifying the success or failure of verification by comparing with information on a predetermined state and position ;
When the authentication is successful, acquiring information drawn on the surface of the object by imaging with an imaging unit;
Authentication determination method including

Images