JP3754966B2 - Display device and display control method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a display device used for displaying an advertisement, and more particularly, to a display device and a display control method suitable when a high-definition and large wall display is used.
[0002]
[Prior art]
Conventionally, there are many large-sized wall displays that are installed in places where people gather, gathering places, resting places, etc., in order to advertise to people gathered there. Japanese Patent Application Laid-Open No. 2004-228688 describes that an image display device automatically displays an image that is easy to view regardless of the position of the person viewing the image display apparatus.
[Patent Document 1]
Japanese Patent Laid-Open No. 2001-319217
[Problems to be solved by the invention]
However, in such a display device such as a large wall display, the large display contents of the impacting components that can be recognized from a distance are recognized as meaning that the components are too large when viewed closely. Is often difficult and the amount of information is small. On the other hand, in the case of display contents that can endure viewing even in a relatively close range and can present detailed and abundant information, it is often difficult to recognize the contents when viewed from a distance. Furthermore, when a detailed image moves, recognition becomes more difficult. This makes it difficult to draw the attention of a distant person.
[0004]
The present invention has been made in view of the above-described problems of the prior art, and an object of the present invention is to provide a display device and a display control method capable of obtaining a high advertising effect for an observer from far to near. There is to do.
[0005]
[Means for Solving the Problems]
To achieve the above object, the present invention provides:
A display device having a display screen capable of displaying a display image by changing at least one of its image size and display position;
Detection means for detecting object information including distance information between an object existing in front of the display screen and the display screen;
In order to display a display image displayed in an area in the display screen that is obstructed by the object according to the object information detected by the detecting means, in another area other than the area. Changing means for moving or enlarging or reducing the display image;
It is characterized by comprising.
[0006]
The changing means is a display for vicinity for presenting more detailed information than the display image in an area in the display screen blocked by the object according to the object information detected by the detecting means. It is preferable to display an image.
[0007]
Alternatively, the present invention provides a display control method capable of displaying a display image on a display screen of a display device by changing at least one of the image size and the display position.
A detection step of detecting object information including distance information between the object existing in front of the display screen and the display screen;
In accordance with the detected object information, the display image displayed in the area within the display screen that is blocked by the object is moved to be displayed in another area other than the area. Or a changing step of performing at least one of enlargement or reduction;
It is characterized by including.
[0008]
The changing step displays a display image for vicinity for presenting more detailed information than the display image in an area in the display screen that is blocked by the target object according to the detected target object information. Is preferred.
[0009]
According to the above configuration, for a person observing from a distance, a large display image of a high-impact component that can be recognized from a distance is displayed dynamically, and the distance is so long as the display device is approached. Appeal the distant display screen to the person being observed. Then, if it is determined that the person starts to approach the display device and then exists somewhere near the front of the display device, avoid the nearby person so that the distant display content can be seen from a distance. Can move.
[0010]
Alternatively, when a person approaching the display device is detected, a display image that has been moved upward, enlarged, or reduced away from the person so that the person can easily recognize the display image is blocked by the person. Since the display image is moved and / or reduced and displayed in the inner area, the person can easily recognize the display image.
[0011]
It is preferable that the changing means or the changing step can move the display image upward.
[0012]
According to the above configuration, it is possible to display the display content for the vicinity in the area vacated by the movement while maintaining the visibility from the distance by moving the display content for the far distance upward, to both the remote person and the nearby person. On the other hand, a high advertising effect can be exhibited.
[0013]
The object information detected by the detection means or the detection step is preferably a time when the object is present in a region in front of the display device.
[0014]
According to the above configuration, since it is determined whether or not it is necessary to change the distant display content based on the time when the object exists, for example, in the case of a person who simply passes the front of the display device, etc. There is no need to move or change useless display content.
[0015]
The object information detected by the detecting means or the detecting step is preferably the number of objects existing in a region in front of the display device.
[0016]
According to the above configuration, since it is determined whether or not the distant display content needs to be changed based on the number of objects, for example, even if the distant display content is changed because the object is alone, the advertisement is high. When the effect cannot be obtained, it is not necessary to move or change useless display contents.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Exemplary embodiments of the present invention will be described in detail below with reference to the drawings. However, the dimensions, materials, shapes, relative arrangements, and the like of the components described in this embodiment are not intended to limit the scope of the present invention only to those unless otherwise specified. Absent. Further, the materials, shapes, etc. of the members once described in the following description are the same as those in the first description unless otherwise described.
[0018]
FIG. 1 is a block diagram showing an outline of the configuration of the display device of the present invention.
[0019]
1 is a large-scale high-definition wall display device capable of displaying image information such as moving images and still images with various resolutions. 2 is video data that is used to determine whether one or more persons are in front of the display device and to determine movement. A CCD camera as an imaging device to be generated, 3 is an infrared sensor group as distance detection means for recognizing the distance of a person on the front surface of the display device, and 4 is a video digitizer using the output of the CCD camera as digital data. By these 2, 3, and 4, object information including distance information between the object existing in front of the display screen of the display device 1 and the display screen is detected.
[0020]
5 is the output of the control signal of the display device, the movement and formation of the graphic data on the video memory, the synthesis of the output video data of the image sound encoding / decoding means with the graphic, the control of the video digitizer and the output data of the video digitizer This is a frame memory controller that performs writing to the video memory, CPU access control to the video memory, data input / output to the shape extraction means, and the like. In accordance with the detected object information, the frame memory controller 5 (1) displays the display image displayed in the area in the display screen that is blocked by the object in another area other than the area. For this purpose, at least one of movement and enlargement of the display image is performed, or (2) the display image is displayed in order to display the previously displayed display image in an area within the display screen that is blocked by the object. It is a change means for performing at least one of movement or reduction.
[0021]
A video RAM 6 holds data for refreshing the display device, holds digitized image data of the CCD camera, and holds data for processing by the CPU.
[0022]
7 is a shape extracting means for extracting a desired shape from the video image captured by the CCD camera, 8 is a decoder for compressing encoded data from the communication means, and encoding the output digital data from the CCD camera and video digitizer. 9 is an audio amplifier that amplifies the audio output of the video / audio coding / decoding means, 10 is a CPU that executes various programs, and 11 is a data buffer between the CPU and each control means. An input / output bus controller that performs mediation, 12 is an infrared receiving unit that recognizes the distance of a person on the front of the display device, and 13 is a non-volatile storage unit such as a flash memory that stores programs and stores data.
[0023]
Reference numeral 14 denotes communication control means for transmitting and receiving information obtained by the recognition means, drawing information to be displayed on the wall surface display device, and compression encoded information via the subscriber line.
[0024]
Reference numeral 15 denotes a speaker for converting the output of the audio amplifier into sound.
[0025]
According to the detected object information, the frame memory controller 5, the CPU 10, or the like (1) displays a display image displayed in an area in the display screen blocked by the object, in another area other than the area. (2) To display the previously displayed display image in an area within the display screen that is blocked by the object. Further, it is a changing means for performing at least one of movement and reduction of the display image.
[0026]
The operation will be described below with reference to the drawings. FIG. 2 is a diagram showing a state in which a person is observing a large-screen high-definition wall display that is a display device according to the present invention from a distance.
[0027]
As shown in FIG. 2, a high-definition large-sized wall display (hereinafter referred to as “display device”) 1 having an infrared sensor group 3 or the like (1) detects the presence of a person near the front surface of the display device, and (2) The display content displayed on the entire screen is reduced in the vertical direction while moving upward, (3) more detailed display content is taken over from the display content moved to the remaining area, and (4) full-screen display is displayed. Provide effective advertising that supplements the content.
[0028]
Here, the display device 1 displays an image of a distant display content of a component having a rough impact that can be recognized from a distant place.
[0029]
The distant display content is composed of too large elements, so that it is difficult to recognize the meaning when viewed from close, but conversely, it is easy to recognize when viewed from a distance.
[0030]
When a person is interested in the distant display contents and approaches the display device, and the distance from the display device surface is within a predetermined distance, the infrared sensor group 3 reacts and the signal is sent to the infrared receiving means 12, the input / output bus controller. 11 is sent to the CPU 10 via the CPU 11, and the CPU 10 executes a program for judging the content of the signal stored in the nonvolatile storage means 13.
[0031]
The CCD camera 2 captures the state of the front surface of the display device 1 at a wide angle, and the output of the CCD camera 2 is digitized by the video digitizer 4 and stored in the non-display area work area of the video RAM 6 by the frame memory controller 5. Yes.
[0032]
When the CPU 10 determines the content of the output signal of the infrared sensor group 3 by executing the program, the CPU 10 executes a program for determining the output data of the CCD camera 2 in the non-display area of the video RAM 6.
[0033]
The program sets the shape extraction means 7, and the shape extraction means 7 extracts a target shape from the output image data of the CCD camera 2 in the non-display area work area of the video RAM 6.
[0034]
At this time, when position information is included in the output data of the infrared sensor group 3, it is possible to improve the extraction efficiency by searching only for that portion.
[0035]
A certain number of persons or more are detected by the shape extracting means 7 and further taken in by the CCD camera 2 again at the same position after a certain time and stored in the work area of the non-display area of the video RAM 6. When a certain number or more of persons are detected by the shape extracting means 7 for extracting a target shape, the program determines that there are a certain number or more of persons.
[0036]
Here, the CPU 10 executes a program for changing the configuration of the screen stored in the nonvolatile storage means 13.
[0037]
The program uses the distant display contents of the large-impact recognizable components formed in the display area of the video RAM 6 by using the function of moving and forming the graphic data of the frame memory controller 5 and synthesizing with the video. And move upward while reducing in the vertical direction.
[0038]
Further, the program displays an image of the display content for the vicinity that can present detailed information with thin lines that can withstand viewing even in a relatively close area that can be recognized by the infrared sensor group 3 in the empty display area formed below the display device. The frame memory controller 5 is formed by using the graphic data moving and forming functions and the video synthesizing function.
[0039]
The display contents are supplemented and succeeded to the outline contents of the distant display contents, and more detailed descriptive detailed graphics and presentations using moving images for further understanding are used.
[0040]
For this reason, the amount of information is remarkably increased, and when viewed from a distance, the image is fine and the line is thin, and even if it is unrecognizable, it can be sufficiently recognized because it is viewed from the vicinity.
[0041]
When the frame memory controller 5 moves, forms, and synthesizes video, the program communicates with the center using a communication line to transfer graphic image data, compressed natural image moving images and still images. Receive.
[0042]
At this time, information on the layout of the screen is received at the same time, and the display screen for the vicinity is sequentially formed on the video RAM 6 by using the graphic data movement and formation of the frame memory controller 5 and the composition with video.
[0043]
Shape extraction for extracting a desired shape from video image data captured by the CCD camera 2 when there is always a certain number of persons in the recognition area of the infrared sensor group 3 on the front surface of the display device Since the means 7 and the infrared sensor group 3 always recognize a certain number of persons or more, the distant display screen continues to maintain a vertically reduced state in the upper part of the display device 1.
[0044]
When there is a change in the number of persons of a certain number or more in the output data of the shape extraction means 7 and the infrared sensor group 3 for extracting the target shape from the video image data captured by the CCD camera 2 The display content corresponding to the change may be updated.
[0045]
When the frame memory controller 5 moves, forms, and synthesizes the video during the update, the program communicates with the center using the communication line and the graphic image data corresponding to the change in the number of persons or compressed Receives transfer of natural images and still images.
[0046]
At this time, information regarding the layout of the screen corresponding to the change in the number of persons is received at the same time, and the screen of the display content for the vicinity updated by using the function of moving and forming the graphic data of the frame memory controller 5 and the composition with the video It can be sequentially formed on the video RAM 6.
[0047]
An appropriate number of graphics and video windows updated according to changes in the number of persons based on the image information obtained from the center by the function of moving and forming the graphic data of the frame memory controller 5 and synthesizing with the video are synthesized. Is possible.
[0048]
Furthermore, the motion is detected in a certain number of persons or more by the shape extraction means 7 for extracting a target shape from the video image data captured by the CCD camera 2 and the output data of the infrared sensor group 3, and the constant motion is started. Recognizing the position of more than a few people to some extent is possible.
[0049]
When the movement of a certain number of persons or more can be tracked by the shape extraction means 7 for extracting the target shape from the video image data captured by the CCD camera 2, a communication line is used under the control of the program. Communication with the center, transfer of graphic image data, compressed natural image moving images and still images, and the frame memory controller 5's graphic data movement and formation and video compositing functions allow a certain number of people to move A window screen that is different from the display content for the neighborhood to attract interest is formed near a certain number of people so that the display screen for the neighborhood can be moved from screen to screen according to the movement of the person. You may control to.
[0050]
Next, the operation of the display device of the present invention will be described with reference to a flowchart. 3 to 5 are flowcharts for explaining the operation of the display device according to the embodiment of the present invention.
[0051]
Each state will be described below according to the steps. First, step S1 to step S6 will be described with reference to FIG.
[0052]
As shown in FIG. 3, an image of a large component that can be recognized from a distance, that is, a distant display content having a large physical size of the display image is displayed on the entire display device (step S1). That is, for observation from a distant place, a dynamic image having a large component that can be easily recognized from a distant place is displayed so that the viewer can approach the display device.
[0053]
Next, when a person approaches the vicinity of the front surface of the display device, the infrared sensor group 3 detects the person (step S2).
[0054]
If a person is detected by the infrared sensor group 3, then the distance from the display device to the person in front of the display device is detected. If the detected distance is more than the reference value, the distant display content remains Returning to the operation of S1, if the detected distance is closer than the reference value, the process proceeds to step S4 (step S3).
[0055]
In step S3, if the detected distance is closer than the reference value, for example, it is determined from the shape whether the object detected by the shape extracting means or the like is a person. If it is determined that the person is not a person, the distant display content remains. Returning to the operation of step S1. On the other hand, if it is determined that the person detected by the shape extracting means or the like is a person, the process proceeds to step S5 (step S4).
[0056]
If it is determined in step S4 that the detected object is a person, it is next determined whether or not the number of persons is greater than or equal to a reference value. The advertisement effect for a large number of persons located farther than the advertisement effect for the person is prioritized, and the process returns to the operation of step S1 with the distant display content remaining unchanged. On the other hand, if it is determined that the number of detected persons is equal to or greater than the reference value, the process proceeds to step S6 (step S5).
[0057]
If it is determined in step S5 that the number of detected persons is equal to or greater than the reference value, it is determined whether or not the person stays in front of the display device next is longer than the reference value. If it is determined that the time is shorter, it is considered that the person has simply passed the front of the display device, so the advertising effect for a large number of persons is prioritized and the operation returns to step S1 with the distant display content remaining unchanged. On the other hand, if it is determined that the staying time is equal to or longer than the reference value, the person is considered to be a person waiting in front of the display device, and the process proceeds to step S7 (step S6).
[0058]
Next, steps S7 to S12 will be described with reference to FIG.
[0059]
In step S7, information on the object existing on the front face of the display device detected in steps S3 to S6 is communicated by the communication control means 14 with a center storing display contents such as advertisements through the subscriber line.
[0060]
In step S8, information such as various image data and screen layout optimized for the vicinity is acquired from the center.
[0061]
In step S9, mainly the image movement, the image formation, and the composition of the distant display are moved upward or reduced in the vertical direction by the combining means. For example, when a person approaches, the person exists. If it is determined that the image is present in the vicinity to some extent, the image of the distant display content is moved upward while being reduced in the vertical direction as a whole. Create a space to display the display contents.
[0062]
In step S10, the display content for the vicinity is drawn by the image movement, image formation and composition means based mainly on the information obtained through the communication with the center. For example, the image of the distant display content is moved. A detailed image that can be viewed from near the front of the display device is drawn in a free space. That is, unlike the image of the distant display content, in the portion close to the observer after the image of the distant display content below the display device is moved, details of the amount of information with the original resolution of the display device and the high-speed response live. Many screens are displayed.
[0063]
In addition, the above process enables a person who is interested in observing the display device from a distance and has approached the display device to obtain more detailed and continuous information following the information observed from a distance. become.
[0064]
Therefore, it is possible to provide the viewer with display contents with a large amount of information and a greater advertising effect than display contents considering only the appeal from a distant place, and more effective advertising is possible.
[0065]
In step S11, a change in the number of persons near the front surface of the display device is detected. If there is no change in the number of persons, the process proceeds to step S17. On the other hand, if there is a change in the number of persons, the process proceeds to step 12.
[0066]
In step S12, it is determined whether or not the number of persons existing in the vicinity of the front surface of the display device is equal to or greater than a reference value. If it is determined that the number of persons is equal to or less than the reference value, the process proceeds to step S17. On the other hand, if it is determined that the number of persons is equal to or greater than the reference value, the process proceeds to step S13.
[0067]
Next, steps S13 to S17 will be described with reference to FIG.
[0068]
In step S13, it is determined whether or not the person staying in the vicinity of the display device stays longer than the reference value. If it is determined that the time is shorter than the reference value, the process proceeds to step S17. On the other hand, if it is determined that the time is longer than the reference value, the process proceeds to step S14.
[0069]
In step S14, the information on the object existing on the front surface of the display device detected in steps S11 to S13 is communicated by the communication control means 14 with the center storing the display contents such as advertisements through the subscriber line.
[0070]
In step S15, information such as various image data and screen layout optimized for the vicinity is acquired from the center.
[0071]
In step S16, the display content for the vicinity and the display layout are changed by the image movement, image formation and composition means based mainly on the information obtained through communication with the center. For example, the image of the distant display content is displayed. A detailed image that can be viewed from the vicinity of the front surface of the display device is drawn in a space that is moved and the display layout is changed or moved in accordance with the movement of a person on the front surface of the display device.
[0072]
Through the steps S11 to S16, the display content for the vicinity can be changed to a content and layout with a high advertising effect in accordance with the distance to the person existing on the front surface of the display device, the number of people, and the staying time.
[0073]
In step S17, it is determined whether or not there is a person in the recognition range of the infrared sensor group 3. If it is determined that there is no person, the process returns to the operation of step S1 to change from the display content for the vicinity to the display content for the distant place. On the other hand, if it is determined that there is a person in the recognition range, the operation returns to the operation of step S11 again and the predetermined operation is repeated.
[0074]
As described above, according to the present invention, for a person observing from a distance, a large display content of a component having an impact that can be recognized from a distance is displayed dynamically and displayed on a display device. Appeal the distant display contents screen to the person who is observing distantly to approach.
[0075]
Then, when it is determined that the person starts to approach the display device and then exists in the vicinity of the front of the display device to some extent, in order to display the distant display content avoiding the person existing in the vicinity , Move upward while reducing the vertical direction as a whole. Alternatively, an enlarged display may be performed on the entire screen so that the outline of the display contents can be understood from a distance even if a part of the screen is blocked by a person or the like.
[0076]
In addition, the distant display content image below the display device has moved, and unlike the distant display content image, the line has a thin line that can withstand viewing even in the vicinity of the display device's original resolution and high-speed response. A screen of display content for the vicinity including a moving image capable of presenting detailed and abundant information is displayed. If the previous image is enlarged and displayed on the entire screen, it is reduced and moved to the screen in front of the person so that the approaching person can visually recognize and understand the display content more.
[0077]
This makes it possible for a person who is interested in observing the display device from a distance and who has approached the display device to follow the general information that he / she has been observing from a distance. Can be obtained.
[0078]
In addition, this can provide a viewer with a display effect with a larger amount of information than a display device that takes into account only the appeal to the distant place, and the meaning of the distant display content and the near display content. By providing continuity to the image of the display content for the vicinity and providing detailed and abundant information that compensates for the approximate portion for the further distance, more effective advertising can be performed.
[0079]
The following embodiments are also included in the embodiments of the present invention.
[0080]
[Embodiment 1]
A display device having a display screen capable of displaying a display image by changing at least one of its image size and display position;
Detection means for detecting object information including distance information between an object existing in front of the display screen and the display screen;
In order to display a display image displayed in an area in the display screen that is obstructed by the object according to the object information detected by the detecting means, in another area other than the area. Changing means for moving or enlarging or reducing the display image;
A display device comprising:
[0081]
[Embodiment 2]
A display device having a display screen capable of displaying a display image by changing at least one of its image size and display position;
Detection means for detecting object information including distance information between an object existing in front of the display screen and the display screen;
In response to the object information detected by the detection means, the display image that has been previously displayed is moved or reduced so as to be displayed in an area in the display screen that is blocked by the object. Changing means for performing at least one of the above,
A display device comprising:
[0082]
[Embodiment 3]
The display device according to Embodiment 1 or 2, wherein the changing unit is capable of moving the display image upward.
[0083]
[Embodiment 4]
4. The display device according to any one of embodiments 1 to 3, wherein the object information detected by the detection unit is a time during which the object exists in a region in front of the display device.
[0084]
[Embodiment 5]
5. The display device according to any one of embodiments 1 to 4, wherein the object information detected by the detection means is the number of objects existing in a region in front of the display device.
[0085]
[Embodiment 6]
In a display control method capable of displaying a display image on a display screen of a display device with at least one of its image size or its display position being different,
A detection step of detecting object information including distance information between the object existing in front of the display screen and the display screen;
In accordance with the detected object information, the display image displayed in the area within the display screen that is blocked by the object is moved to be displayed in another area other than the area. Or a changing step of performing at least one of enlargement or reduction;
A display control method comprising:
[0086]
[Embodiment 7]
In a display control method capable of displaying a display image on a display screen of a display device with at least one of its image size or its display position being different,
A detection step of detecting object information including distance information between the object existing in front of the display screen and the display screen;
In accordance with the detected object information, at least one of movement and reduction of the display image is performed in order to display the previously displayed display image in an area in the display screen that is blocked by the object. A change process to perform,
A display control method comprising:
[0087]
[Embodiment 8]
The display device according to embodiment 6 or 7, wherein in the changing step, the display image can be moved upward.
[0088]
[Embodiment 9]
9. The display device according to any one of embodiments 6 to 8, wherein the object information detected by the detection step is a time during which the object exists in a region in front of the display device.
[0089]
[Embodiment 10]
11. The display device according to any one of embodiments 6 to 10, wherein the object information detected by the detection step is the number of objects existing in a region in front of the display device.
[0090]
【The invention's effect】
As described above, according to the present invention, by changing the images of the distant display contents and the near display contents, a high advertising effect is obtained for both the distant observer and the nearby observer. be able to.
[Brief description of the drawings]
FIG. 1 is a block diagram showing an outline of a configuration of a display device according to the present invention.
FIG. 2 is a diagram showing a state in which a person observes a large-screen high-definition wall display, which is a display device according to the present invention, from a certain distance.
FIG. 3 is a flowchart for explaining the operation of the display device according to the embodiment of the invention.
FIG. 4 is a flowchart for explaining the operation of the display device according to the embodiment of the invention.
FIG. 5 is a flowchart for explaining the operation of the display device according to the embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Display apparatus 2 CCD camera 3 Infrared sensor group 4 Video digitizer 5 Frame memory controller 6 Video RAM
7 Shape extraction means 8 Encoding / decoding means 9 Audio amplifier 10 CPU
11 I / O bus controller 12 Infrared receiving means 13 Non-volatile storage means 14 Communication control means 15 Speaker

Claims (4)

A display device having a display screen capable of displaying a display image by changing at least one of its image size and display position;
Detection means for detecting object information including distance information between an object existing in front of the display screen and the display screen;
In order to display a display image displayed in an area in the display screen that is obstructed by the object according to the object information detected by the detecting means, in another area other than the area. Changing means for moving or enlarging or reducing the display image;
A display device comprising: The changing means is a display for vicinity for presenting more detailed information than the display image in an area in the display screen blocked by the object according to the object information detected by the detecting means. The display device according to claim 1, wherein an image is displayed. In a display control method capable of displaying a display image on a display screen of a display device with at least one of its image size or its display position being different,
A detection step of detecting object information including distance information between the object existing in front of the display screen and the display screen;
In accordance with the detected object information, the display image displayed in the area within the display screen that is blocked by the object is moved to be displayed in another area other than the area. Or a changing step of performing at least one of enlargement or reduction;
A display control method comprising: The changing step displays a display image for vicinity for presenting more detailed information than the display image in an area in the display screen that is blocked by the target object according to the detected target object information. The display control method according to claim 3.

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