JP5250962B2 - Projection apparatus, projection method, and program - Google Patents

Description

  The present invention relates to a projection apparatus, a projection method, and a program suitable for a projector apparatus that performs a presentation.

  2. Description of the Related Art Conventionally, a method of use in which a personal computer (hereinafter referred to as “PC”) is connected to a projector apparatus and the contents of the presentation are projected and displayed by a projector by executing presentation software on the PC has been widely used. It has been broken.

  When a presentation is performed using presentation software that operates on a PC as described above, it is natural that the user should be familiar with the handling of the presentation software, and bring the PC on which the software is installed together with the projector device to the presentation place. Both are essential.

As for the former, making presentation software easy to handle, even in the patent literature, a display device that can control a display page of a PC by one-handed operation, can make a presentation flexibly and quickly, and can realize a highly complete presentation A technique for providing the above has been proposed. (For example, Patent Document 1)
JP 2003-330441 A

  On the other hand, in recent years, a document data file created with presentation software is converted into a series of image data on a PC and stored in a small storage medium such as a USB memory, for a simple presentation without using a PC. A projector device having a function of sequentially reading out and projecting a series of image data stored in the USB memory by directly connecting the USB memory is considered.

  A projector apparatus having this type of function has only a function of reading and projecting image data stored in a storage medium in accordance with the stored order. For this reason, it has been impossible to perform an operation for changing the order of images, for example, an operation for skipping a page by one page or a plurality of pages, or returning to a previous page that has already been projected.

  The present invention has been made in view of the above circumstances, and the object of the present invention is to execute a simple presentation function for sequentially projecting a series of images, while regarding a particularly important image in the series of images. Is to provide a projection apparatus, a projection method, and a program capable of projecting at any time as needed regardless of the order.

  The present invention provides a projection unit that forms and emits an optical image corresponding to an input image signal, and a detection unit that detects a predetermined identification information for a plurality of image signals that are continuously input. Storage means for storing an image signal whose identification information has been detected by the detection means, instruction means for instructing projection of the image signal stored in the storage means, and storage by the storage means in response to an instruction from the instruction means And a projection control unit that reads the image signal and projects the image signal by the projection unit instead of the input image signal.

  According to the present invention, while executing a simple presentation function for sequentially projecting a series of images, particularly important images in the series of images are automatically stored with predetermined identification information, so that the order is It becomes possible to project at any time as needed regardless of the timing.

  Hereinafter, an embodiment in which the present invention is applied to a projector apparatus will be described with reference to the drawings.

FIG. 1 shows an external configuration of a projector apparatus 10 according to the embodiment, in which FIG. 1A mainly shows the front and top surfaces of the casing, and FIG. 1B mainly shows the back and top faces of the casing.
As shown in FIG. 2A, a projection lens 12, a distance measuring sensor 13, and an Ir light receiving unit 14 are disposed on the front surface of a rectangular parallelepiped main body casing 11.

  The projection lens 12 is for enlarging and projecting a light image formed by a spatial light modulation element composed of a micromirror element, which will be described later, onto an object such as a screen. Here, a focus position and a zoom position (projection) The angle of view) can be arbitrarily changed.

  The distance measuring sensor 13 is disposed adjacent to the projection lens 12 so that one of the two phase difference sensors is in the horizontal direction and the other is in the vertical direction, and is projected based on the principle of triangulation from the parallax with respect to the subject image. The distance to the object is measured along a two-dimensional detection line in the horizontal and vertical directions.

  The Ir light receiving unit 14 receives an infrared light (Ir) signal on which a key operation signal from a remote controller of the projector device 10 (not shown) is superimposed.

A key switch portion 15 and a speaker 16 are disposed on the upper surface of the main body casing 11.
The key switch unit 15 includes, for example, a power key, an AFK (Automatic Focus / Automatic Keystone Correction) key, a zoom key, an input selection key, and a cursor that also serves as a page switching instruction key. “↑”, “↓”, “←”, “→”) key, “Enter” key, storage page display key, and the like. Similar keys are also provided on a remote controller (not shown) of the projector device 10. Shall be.

  The speaker 16 emits a sound of the input audio signal and a beep sound during operation.

Further, as shown in FIG. 1B, an input / output connector portion 17, an Ir light receiving portion 18, and an AC adapter connecting portion 19 are disposed on the back surface of the main body casing 11.
The input / output connector unit 17 includes, for example, a USB terminal for connection with an external device such as a personal computer, a mini D-SUB terminal for video input, and an RCA (pin jack) terminal.

Similar to the Ir light receiver 14, the Ir light receiver 18 receives an infrared light (Ir) signal on which a key operation signal from a remote controller (not shown) is superimposed.
The AC adapter connection unit 19 connects a cable from an AC adapter (not shown) serving as a power source.

  Next, the functional configuration of the electronic circuit of the projector apparatus 10 will be described with reference to FIG. In the figure, the image signals of various standards input from the input / output connector unit 17 are unified into image signals of a predetermined format by the image conversion unit 22 via the input / output interface (I / F) 21 and the system bus SB. Is sent to the projection encoder 23.

  The projection encoder 23 develops and stores the transmitted image signal in the video RAM 24, generates a video signal from the stored contents of the video RAM 24, and outputs the video signal to the projection drive unit 25.

  The projection driving unit 25 appropriately speeds up the time division driving by multiplying the frame rate, for example, 60 [frames / second], the number of color component divisions, and the number of display gradations as appropriate in accordance with the transmitted image signal. For example, the micromirror element 26 which is a spatial light modulation element (SOM) is driven to display.

  For the micromirror element 26, high-intensity white light emitted from a light source lamp 28 disposed in a reflector 27, for example, using an ultra-high pressure mercury lamp, is appropriately colored to a primary color via a color wheel 29, and light A light beam having a uniform luminance distribution in the tunnel 30 is irradiated after being totally reflected by the mirror 31, and an optical image is formed by the reflected light, and is projected and displayed on a screen (not shown) through the projection lens 12. The

  However, both the lighting driving of the light source lamp 28 and the motor (M) 32 that rotationally drives the color wheel 29 operate based on the supply voltage value from the projection light processing unit 33.

  The control unit 34 controls all the operations of the above circuits. The control unit 34 includes a CPU, a non-volatile memory in which an operation program executed by the CPU during a projection operation, various fixed data, and the like are fixedly stored, and a work memory.

  The control unit 34 is also connected to an image storage unit 35, a distance measurement processing unit 36, and an audio processing unit 37 via the system bus SB.

  The image storage unit 35 stores the image signal input from the input / output connector unit 17 for one frame or a plurality of frames under the control of the control unit 34, and appropriately stores the contents stored according to the instruction of the control unit 34. Reading and sending to the projection encoder 23 instead of the image signal input from the input / output connector unit 17.

  The distance measurement processing unit 36 controls and drives the distance measurement sensor 13 composed of the two pairs of phase difference sensors, and calculates the distance from the detected output to an arbitrary point position. The calculated distance value data is It is sent to the control unit 34.

  The sound processing unit 37 includes a sound source circuit such as a PCM sound source, converts the sound data given during the projection operation into analog data, drives the speaker 16 to emit a loud sound, or generates a beep sound or the like if necessary.

  Each key operation signal in the key switch (SW) unit 15 is directly input to the control unit 34, and a signal from the Ir light receiving unit 38 is also directly input to the control unit 34. The Ir light receiving unit 38 includes an Ir light receiving unit 14 on the front surface side and an Ir light receiving unit 18 on the rear surface side of the main body casing 11. The infrared light reception signal from the remote controller is converted into a code signal and sent to the control unit 35. To do.

Next, the operation of the above embodiment will be described.
(First operation example)
Here, a USB memory storing a data file composed of a series of image data is connected to the USB terminal of the input / output connector unit 17, and the image data read from the USB memory is projected in sequence, thereby projecting for presentation. The operation shall be executed.

  FIG. 3 exemplifies a series of image data to be projected at this time. One of a plurality of n images has a predetermined symbol in an area A set in advance as shown in FIG. It is assumed that a pattern, for example, an asterisk M is written.

  These image data are written in a USB memory as a single image data file after they are uniformly converted into a predetermined image format, for example, JPEG, which has been created in advance using a presentation software on a personal computer (not shown).

  It is assumed that both the key switch unit 15 and the remote controller of the projector device 10 (not shown) have a key marked with the star M as a display page display key.

  FIG. 4 shows the operation when the image data file stored in the USB memory connected to the USB terminal of the input / output connector unit 17 is read out and sequentially projected. The operation control is stored in advance by the control unit 35. The program is executed based on the operating program.

  At the beginning, it is determined whether or not there is a page of an image to be projected (step A01). If it is determined that projection is performed using the image data of the page (step A02), the image is projected. It is detected whether or not there is a symbol pattern for automatic saving in the existing image (step A03).

  This is to detect the image pattern of the star M by searching the preset area A of the image projected by the control unit 34, and whether or not the detection can be detected from the detection result. Judgment is made (step A04).

  Only when it is determined that the image can be detected, the image data projected at that time is stored in the image storage unit 35 (step A05).

  Thereafter, it is determined whether or not the cursor key operation of the key switch unit 15 for instructing page switching or the remote controller of the projector device 10 has been performed regardless of the presence or absence of the detection (step A06). The process returns to step A01 to project a new page corresponding to the key operation.

  If it is determined in step A06 that there is no page switching operation, the key switch unit 15 or the star symbol M of the remote controller of the projector device 10 that instructs the projection of the image data stored in the image storage unit 35 is then displayed. It is determined whether or not the key that has been marked has been operated (step A07).

  If it is determined that the key operation has not been performed, it is further determined whether or not a key operation for canceling the projection operation has been performed during the projection of the image data stored in the image storage unit 35 (step S1). A10) If not, the process returns to the process from step A06 again, and then the processes of steps A06, A07, and A10 are repeatedly executed, so that each key operation described above is performed while continuing the projection operation. Wait.

  If it is determined in step A07 that the key operation for instructing the projection of the image data stored in the image storage unit 35 has been performed, the image data is being projected by the input from the input / output connector unit 17, and the image storage unit It is determined whether or not image data is stored in 35 (step A08).

  Only when it is determined that this is the case, instead of the projection operation by the input from the input / output connector unit 17 so far, the image data stored in the image storage unit 35 is read and the projection operation is performed ( Step A09), and then the process returns to Step A06 regardless of whether or not the projection operation is performed in Step A09.

  When it is determined that the image data stored in the image storage unit 35 in step A10 is being projected and a key operation for canceling the projection operation is performed, the image stored in the image storage unit 35 is stored. Instead of projecting data, after returning to the projection operation based on the input from the input / output connector unit 17 again (step A11), the process returns to step A06.

  Thus, based on the key operation, the image data from the USB memory connected to the USB terminal of the input / output connector unit 17 and the image data automatically stored in the image storage unit 35 are projected.

  Thus, when the page switching key operation is performed in a state where the image data is being projected from the USB memory, and this is determined in step A06, it is determined in step A01 that there is no image data to be projected next. That is, when the image data projected so far is the image data of the last page, it is assumed that there is no image data to be projected, and the projection operation of FIG.

  As described above, while executing a simple presentation function for sequentially projecting a series of images without using a personal computer, images of particularly important image data in the series of images are automatically displayed according to a predetermined symbol pattern. Since the image is stored in the storage unit 35, the image stored in the image storage unit 35 can be read and projected at any time as needed regardless of the order.

  Note that when creating a series of image data files to be stored in the USB memory, the user applies a predetermined symbol pattern to a preset area A in a page that seems to be particularly important during the editing operation of the original presentation software. It may be described, or the image data of the page with the longest projection time, or the most important thing, may be important when performing a presentation replay that is both converted to the image data file and stored in the USB memory. A predetermined symbol pattern may be automatically synthesized and stored with respect to the image data of the page on which a necessary key operation has been made after determination.

  Further, when detecting the symbol pattern in the image, the detection is performed from a preset area A in the image, and the detection area is limited not the entire image. The burden and time required for detection can be greatly reduced.

(Second operation example)
Here, a USB memory storing a data file composed of a series of image data is connected to the USB terminal of the input / output connector unit 17, and the image data read from the USB memory is projected in sequence, thereby projecting for presentation. The operation shall be executed.

  FIG. 5 exemplifies a series of image data to be projected at this time, and three of a plurality of n images are shown in FIGS. 5 (2), 5 (6), and 5 (7). Assume that one of a plurality of predetermined symbol patterns, for example, a heart mark M1, an asterisk M2, and an asterisk M3, is written in each preset area A.

  These image data are written in a USB memory as a single image data file after they are uniformly converted into a predetermined image format, for example, JPEG, which has been created in advance using a presentation software on a personal computer (not shown).

  In addition, the key switch unit 15 and the remote controller of the projector device 10 (not shown) both have three keys with the heart mark M1, the asterisk M2, and the star M3 as the storage page display keys. It shall be.

  FIG. 6 shows an operation when the image data file stored in the USB memory connected to the USB terminal of the input / output connector unit 17 is read and sequentially projected. The operation control is stored in advance by the control unit 35. The program is executed based on the operating program.

  At the beginning, it is determined whether or not there is a page of an image to be projected (step B01). If it is determined that projection is performed using the image data of the page (step B02), the image is projected. It is detected whether there is a symbol pattern for performing automatic storage in the existing image (step B03).

  This is because the controller 34 searches the preset area A of the image projected to detect one of the image patterns of the heart mark M1, the asterisk M2, and the star mark M3. Then, it is determined whether or not it has been detected (step B04).

  Only when it is determined that it can be detected, the image data projected at that time in association with the detected symbol pattern is stored in the image storage unit 35 (step B05).

  Thereafter, it is determined whether or not the cursor key operation of the key switch unit 15 for instructing page switching or the remote controller of the projector apparatus 10 has been performed regardless of the presence or absence of the detection (step B06). The process returns to step B01 to project a new page corresponding to the key operation.

  If it is determined in step B06 that there is no page switching operation, then the heart mark M1 of the key switch unit 15 or the remote controller of the projector device 10 that instructs to project the image data stored in the image storage unit 35. Then, it is determined whether or not a key operation has been performed by any one of the three keys marked with the asterisk M2 and the star M3 (step B07).

  If it is determined that the key operation has not been performed, it is further determined whether or not a key operation for canceling the projection operation has been performed during the projection of the image data stored in the image storage unit 35 (step S1). B10) If not, the process returns to the process from step B06 again, and then the processes of steps B06, B07, and B10 are repeatedly executed, so that each key operation described above is performed while continuing the projection operation. Wait.

  If it is determined in step B07 that any one of the three key operations for instructing the projection of the image data stored in the image storage unit 35 has been performed, the image data of the corresponding symbol is further stored in the image storage unit 35. It is determined whether it is stored (step B08).

  Only when it is determined that it is stored here, instead of the projection operation so far, the image data of the corresponding symbol stored in the image storage unit 35 is read and the projection operation is performed (step B09), and thereafter Regardless of whether or not the projection operation is performed in step B09, the process returns to step B06.

  If the image data stored in the image storage unit 35 in step B10 is being projected and it is determined that a key operation for canceling the projection operation has been performed, the image stored in the image storage unit 35 is stored. Instead of projecting data, after returning to the projection operation based on the input from the input / output connector unit 17 again (step B11), the process returns to step B06.

  Thus, based on the key operation, the image data from the USB memory connected to the USB terminal of the input / output connector unit 17 and the image data automatically stored in the image storage unit 35 are projected.

  Accordingly, when the page switching key operation is performed in a state where image data is being projected from the USB memory, and this is determined in step B06, it is determined in step B01 that there is no image data to be projected next. That is, when the image data projected so far is the image data of the last page, it is assumed that there is no more image data to be projected, and the projection operation of FIG.

  As described above, in addition to the contents described in the first operation example, image data for a plurality of pages can be stored in the image storage unit 35 corresponding to a plurality of types of symbol patterns, and any of them can be stored. Are read and projected at any time as needed regardless of the order.

  Therefore, while being a simple presentation function that does not use a personal computer, it is possible to obtain a projector device that is more practical and more convenient to use.

  In each of the above operation examples, it has been described that a predetermined symbol pattern is described in the projected image and detected from the image. However, some identification information is visible in the actual image. If it is not described in the form, for example, a predetermined symbol code is added and set in the header portion of the image data, etc., the same function as the above operation examples can be realized without affecting the projected image. it can.

  In the above embodiment, the USB memory storing a file made up of a series of image data is connected to the USB terminal of the input / output connector unit 17, but the present invention does not limit the interface or the like. For example, if the projector device 10 has a wireless LAN function such as the IEEE 101.11 standard or Bluetooth (registered trademark), it is assumed that the image data sent from other external devices constituting the wireless LAN is projected. Also good.

  In addition, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention in the implementation stage. In addition, the functions executed in the above-described embodiments may be combined as appropriate as possible. The above-described embodiment includes various stages, and various inventions can be extracted by an appropriate combination according to a plurality of disclosed structural requirements. For example, even if several constituent requirements are deleted from all the constituent requirements shown in the embodiment, if the effect can be obtained, a configuration from which the constituent requirements are deleted can be extracted as an invention.

1 is a perspective view showing an external configuration of a projector apparatus according to an embodiment of the present invention. 2 is a block diagram showing a functional configuration of the electronic circuit according to the embodiment. FIG. The figure which illustrates the structure of a series of image data used in the 1st operation example which performs the projection which concerns on the embodiment. The flowchart which shows the content of the projection process in the 1st operation example which concerns on the embodiment. The figure which illustrates the structure of a series of image data used in the 2nd operation example which performs the projection which concerns on the embodiment. The flowchart which shows the content of the projection process in the 2nd operation example which concerns on the same embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Projector apparatus, 11 ... Main body casing, 12 ... Projection lens, 13 ... Distance measuring sensor, 14 ... Ir light-receiving part, 15 ... Key switch part, 16 ... Speaker, 17 ... Input / output connector part, 18 ... Ir light-receiving part, DESCRIPTION OF SYMBOLS 19 ... AC adapter connection part, 21 ... Input / output interface (I / F), 22 ... Image conversion part, 23 ... Projection encoder, 24 ... Video RAM, 25 ... Projection drive part, 26 ... Micromirror element, 27 ... Reflector, 28 ... Light source lamp, 29 ... Color wheel, 30 ... Light tunnel, 31 ... Mirror, 32 ... Motor (M), 33 ... Projection light processing unit, 34 ... Control unit, 35 ... Image storage unit, 36 ... Ranging processing unit 37 ... Audio processing unit, 38 ... Ir light receiving unit, SB ... System bus.

Claims (6)

Projection means for forming and emitting a light image corresponding to the input image signal;
Detecting means for detecting a predetermined identification information for a plurality of image signals continuously input;
Storage means for storing an image signal whose identification information is detected by the detection means;
Instruction means for instructing projection of the image signal stored in the storage means;
A projection apparatus comprising: a projection control unit that reads out an image signal stored in the storage unit in response to an instruction from the instruction unit and projects the image signal using the projection unit instead of the input image signal.   The projection apparatus according to claim 1, wherein the detection unit detects a predetermined symbol pattern as identification information from the formed optical image.   The projection apparatus according to claim 2, wherein the detection unit detects a predetermined symbol pattern from a preset region in the optical image. The detection means detects a plurality of types of identification information,
The storage means stores a plurality of image signals corresponding to a plurality of types of predetermined identification information detected by the detection means,
The instruction means selects and instructs one of a plurality of types of identification information,
2. The projection apparatus according to claim 1, wherein the projection control unit reads out an image signal corresponding to the identification information selected by the instruction unit from the storage unit and causes the projection unit to project the image signal. A projection step of forming and emitting a light image corresponding to the input image signal;
A detection step of detecting a predetermined identification information for a plurality of image signals continuously input;
A storage step of storing the image signal in which the identification information is detected in the detection step;
An instruction step for instructing projection of the image signal stored in the storage step;
A projection method comprising: a projection control step of reading out the image signal stored in the storage step according to an instruction in the instruction step and projecting in the projection step instead of the input image signal. A program executed by a computer incorporated in the projection apparatus ,
A projection step of forming and projecting a light image corresponding to the input image signal;
A detection step for detecting a predetermined identification information for a plurality of image signals continuously input;
A storage step for storing the image signal in which the identification information is detected in this detection step;
An instruction step for instructing projection of the image signal stored in the storage step;
A program that reads out the image signal stored in the storage step in response to an instruction in the instruction step, and causes the computer to execute a projection control step of projecting in the projection step instead of the input image signal.

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