JP2000330529A - Picture selection/display method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To display a picture selected from pictures projected up to now on a screen near at hand by selecting pictures by means of the operation of a picture device near at hand during projecting an illustrative picture on the screen. SOLUTION: In this picture selection/displaying method, a picture (a still picture) of an input video signal is projected onto a screen with a main picture device 1, picture data is stored and recorded in a main picture storage part successively, menu picture data is compressed and stored in the memory, and the picture data and the menu picture data attached to an address are sent to picture devices 2a-2n near at hand. Then, pictures are composed at the picture devices, displayed on the screen, and the menu picture is selected by a key operation of an operation part, thus an instruction to transfer the addres of the picture device as well as the address of the selected menu picture and main picture data is sent out. The main picture device reads out the instructed main picture data from the main picture storage part, sends out them to the instructed picture devices at hand, and displays on the screens. Or a personal computer may execute data processing of various pictures of the prescribed main picture device.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image selection and display system, in which an image display device is provided at hand in addition to an image projection device.
The present invention relates to a device for displaying an image selected from images projected by a video projection device on a local video display device.

[0002]

2. Description of the Related Art In the case where an image is projected on a screen using a projection device such as a projector and a description is given to a large number of people, even if it is desired to take a certain image again and take a long time, , It may be difficult to meet individual wishes due to the overall process, in which case, for example,
After all the explanations have been completed, a method of requesting the presenter to project the desired image again has to be taken.
In addition, there is a method of printing and distributing materials for such people, but you must take your eyes off the screen to see the material, you can not see calmly, and the material is black and white copy In such a case, there is a problem that there is no persuasive power such as a projected image.

[0003]

SUMMARY OF THE INVENTION In view of the foregoing, the present invention provides a hand-held image device, and when explaining using a projection device, an image selected by operating the hand-held image device from the projected images at hand. It is intended to be able to be displayed in.

[0004]

In order to achieve the above object, according to the image selection and display method of the present invention, an image projection device for projecting an image based on an input video signal on a screen, and an image data for the video signal are provided. A main image storage unit for storing and recording a plurality of image data, a first menu image memory for storing a plurality of image data for a menu based on the video signal, and the image data, the image data read from the main image storage unit or the first menu image memory A main image device provided with an interface for transmitting the read image data,
Connected to the main imaging device via the interface,
A first screen combining unit that receives the image data, the image data from the main image storage unit, or the image data from the first menu image memory, and combines them into one screen, and displays based on a signal from the first screen combining unit; A hand-held image device provided with a display unit and a first operation unit for selecting a desired image by referring to the menu image displayed on the display unit, and data corresponding to the menu image selected by the first operation unit Is read from the main image storage unit and displayed on the display unit.

The main image device is provided with a first main image memory for storing image data of an input video signal, and image data read from the first main image memory is stored and recorded in the main image storage section. An image for a menu based on the image data read from the first main image memory is stored in the first menu image memory, and the image data read from the first main image memory, the image data read from the main image storage, or the first menu. The image data read from the image memory is transmitted via the interface.

Further, an image compression section is provided in the main image device, and the image data or the image data read from the first main image memory is compressed and stored in the first menu image memory.

And a second main image memory for storing the image data input via the interface or the image data from the first main image memory in the hand image device;
A second menu image memory for storing image data from the first menu image memory and a selected image memory for storing image data from the main image storage unit are provided. Image data read from the second
Image data read from the menu image memory or image data read from the selected image memory are combined.

It is also possible to combine the image data from the second main image memory and the image data from the second menu image memory into one screen by the first screen synthesizing unit and display it on the display unit.

When a menu image is selected on the first operation section, corresponding image data is read from the main image storage section,
It is also possible to store the data in the selected image memory, read it out, input the image data from the second main image memory together with the image data to the first screen synthesizing section, and synthesize it into one screen.

A personal computer (personal computer) is connected to the main image device, and the main image is stored and recorded, the menu image is compressed and stored by the personal computer, and the stored main image or the stored menu image is transferred. reading,
The information may be transmitted to the local image device via the interface.

An audio signal is input to the main image device together with the video signal, a first audio output unit is provided to output audio, and data of the audio signal is stored together with image data in the main image storage unit. Providing a second audio output unit in the imaging device;
When the menu image is selected by the first operation unit, audio data corresponding to the image may be transmitted, stored in the selected image memory, read out, and audio may be output from the second audio output unit.

Alternatively, a second image synthesizing section is provided in the main image device, and the image data read from the first main image memory is stored in the first image synthesizing section.
A second operation unit for synthesizing the image data read from the menu image memory on one screen, projecting the image data on the screen by the main image device, and selecting a desired image by referring to the projected menu image; The image data corresponding to the menu image selected by the operation of the unit may be read from the main image storage unit and projected on the screen by the main image device.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described based on embodiments with reference to the drawings. FIG. 1 is a conceptual diagram of an embodiment of an image selection display method according to the present invention, FIG. 2 is a block diagram of a main part of a main image device, FIG.
FIG. 4 is an example of a screen displayed on the at-hand image device. FIG.
1, 1 is a main image device, 2a to 2n are hand image devices, 3
Is a personal computer (personal computer device). The hand-held image devices 2a to 2n connect to the main image device 1 by wire (cable) or wirelessly.

In the main image apparatus (1) shown in FIG. 2, reference numeral 11 denotes a video signal input unit, which inputs a video signal of a still image to be projected on a screen from a VTR, DVD, personal computer or the like, and outputs a video signal from the VTR or the like. The signal is separated into three colors of R, G and B. Reference numeral 12 denotes an A / D converter for converting a video signal from the video signal input unit 11 into digital image data. Reference numeral 13 denotes gamma correction of the image data from the A / D converter 12 (main image projection unit 15).
Is a liquid crystal type, etc.), superposition of on-screen display signals,
A video signal processing unit that performs signal processing such as sampling and holding for removing a transfer clock for A / D conversion;
Reference numeral 14 denotes a D / A conversion unit that converts image data from the video signal processing unit 13 into an analog signal, and reference numeral 15 denotes a main image projection unit that enlarges and projects on a screen based on the video signal from the D / A conversion unit 14. Reference numeral 16 denotes a synchronization separation / clock generation unit that separates a synchronization signal of a video signal from the video signal input unit 11, generates a clock based on a horizontal synchronization signal, and supplies the clock to each unit of the main image device. A first main image memory 18 for storing image data (still image) digitally converted by the A / D converter 12 for each image, and a first main image memory 19 A main image storage unit for storing the image data read from 18; 20 an image compression unit for compressing the image data read from the first main image memory 18; 21 a plurality of menus compressed by the image compression unit 20 A first menu image memory for storing the image data of the first image memory 22; image data from the first main image memory 18; image data read from the first menu image memory 21; or image data read from the main image storage unit 19. An interface for transmitting at hand image apparatus (2 in Figure 1).

In the hand image device (2) of FIG. 3, reference numeral 31 denotes a microcomputer for controlling each part of the hand image device, and 32 denotes a second memory for storing image data from the first main image memory 18 inputted via the interface 22. A main image memory; 33, a second menu image memory for storing menu image data from the first menu image memory; 34, a selected image memory for storing image data selected from the main image storage unit 19;
A screen synthesizing unit that synthesizes image data from the main image memory 32, the second menu image memory or the selected image memory into one screen, and 36 is a gamma correction of the image data from the screen synthesizing unit 35 (the display unit 38 is a liquid crystal type or the like). ), A D / A converter 37 for converting image data from the video signal processor 36 into an analog signal, and 38 for converting an image based on the video signal from the D / A converter 37. A display unit 39 using a liquid crystal panel or a cathode ray tube for display, and an operation unit 39 for selecting an image to be displayed by key operation with reference to a menu image displayed on the display unit 38.

Next, the operation of the image selection display system according to the present invention will be described. The video signal input unit 11 to the main image projection unit 15 of the main image device 1 constitute, for example, a liquid crystal projector device, and are used when an image is projected on a large screen and explained to a large number of people. A video signal of a still image is input from a video signal input unit 11 to a main image projection unit 15 via an A / D conversion unit 12, a video signal processing unit 13, and a D / A conversion unit 14, and is enlarged and projected on a screen. . The image data digitally converted by the A / D converter 12 is simultaneously stored in the first main image memory 18 one screen at a time, read out under the control of the microcomputer 17 and input to the image compressor 20, and the menu image is displayed one image at a time. Are stored in the first menu image memory 21 in the order of... (FIG. 2 shows an example in which 12 screens can be stored), and are simultaneously input to the main image storage unit 19, , And addresses corresponding to... Are sequentially stored and recorded. Then, the data of the main image read from the first main image memory and the data of the menu image read from the first menu image memory 21 are sent to the local image devices 2a to 2n via the interface 22.

The main image data input to the hand image device 2a or the like is written into the second main image memory 32 via the microcomputer 31, and the menu image data is stored in the second menu image memory 33.
.. Are sequentially stored. Then, under the control of the microcomputer 31, the data in the second main image memory 32 and the data in the second menu image memory 33 are read out, input to the screen synthesizing section 35 and synthesized into one screen, and the video signal processing section 36 performs gamma correction and the like. Is converted into an analog signal by a D / A conversion unit 37, and is input to a display unit 38 composed of a liquid crystal panel, and is displayed as shown in FIG. The image (main image) on the left side of the figure is the same as the image projected on the screen. For example, if the user wants to see the image projected before this image again, the display unit 38
Refer to the menu screen displayed on the right side of FIG. 4 (a), move the cursor of the operation unit 39 up, down, left and right, and press the ○ key to confirm (× key is for cancellation), and specify (select).
The microcomputer 31 discriminates the received menu image, attaches an address indicating the local image device, and sends a main image data transfer instruction signal. This signal is input to the microcomputer 17 of the main image apparatus 1 via the interface 22, reads out the image data of the designated address from the main image storage unit 19 under the control of the microcomputer 17, and outputs the image data of the address for which the transfer instruction has been received via the interface 22. Send it to the local image device. This data is
Is written into the selected image memory 34 via the memory 31. Thereafter, under the control of the microcomputer 31, for example, the image data is read out together with the image data from the second main image memory 32, input to the screen synthesizing unit 35, and synthesized into one screen. The information is displayed on the screen of the display unit 38 as shown in FIG. That is, images other than the image currently being projected on the screen by the main image projecting unit 15 are displayed on the display unit 38 of the hand-held image device.
Can be displayed.

As shown in FIG. 1, a personal computer 3 is connected to the main image apparatus 1, the main image is stored and recorded in the personal computer 3, the menu image is compressed and stored, and the stored main image or stored image is stored. The read menu image is read out, and the local image devices 2 a to 2
2n, and the main image device 1 may be provided with a second screen synthesizing unit, and the image data read from the first main image memory 18 and the image data read from the first menu image memory 21 may be transmitted. A second operation unit is provided for synthesizing on one screen and projecting it on the screen by the main image projection unit 15 and selecting a desired image with reference to the projected menu image.
The image data corresponding to the menu image selected by the operation of the operation unit may be read from the main image storage unit 19 and projected on the screen by the main image projection unit 15. In addition, an audio signal is input to the main image device 1 together with the video signal, and a first audio output unit is provided to output an audio signal.
The audio signal data is stored together with the image data in 19, the second audio output units are provided in the handheld image devices 2a to 2n, and the first operation unit 39
The audio data corresponding to the image is transmitted by the selection of the menu image by the user, stored in the selected image memory 34, read out, and
The sound may be output from the sound output unit.

[0019]

As described above, according to the image selection and display method according to the present invention, while the explanation image is being projected on the screen, it is possible to view another image projected so far. If an image is selected with reference to a menu image displayed on the hand image device, the selected image is read from the main image storage unit of the main image device, transferred to the hand image device, and displayed on the screen. Therefore, when giving explanations to a large number of people, etc., the present invention is useful in that it is possible to fulfill individual wishes without disturbing the overall progress.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram of an image selection display method according to the present invention.

FIG. 2 is a block diagram of a main part of a main image apparatus of an embodiment of an image selection display method according to the present invention.

FIG. 3 is a block diagram of a main part of a hand-held image device according to an embodiment of an image selection display method according to the present invention.

FIG. 4 is an example of a hand display screen.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main image device 2a-2n Hand image device 3 Personal computer 11 Video signal input part 12 A / D conversion part 13, 36 Video signal processing part 14, 37 D / A conversion part 15 Main image projection part 16 Synchronization separation / clock generation part 17, 31 Microcomputer 18, 32 First and second main image memory 19 Main image storage unit 20 Image compression unit 21, 33 First and second menu image memory 22 Interface 34 Selected image memory 35 Screen synthesis unit 38 Display unit 39 Operation Department

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H04Q 9/00 301 G09G 5/00 555A

Claims (9)

[Claims] 1. An image projection apparatus for projecting an image based on an input video signal onto a screen, a main image storage unit storing and recording a plurality of image data of the video signal, and menu image data based on the video signal First to store multiple
A main image device provided with a menu image memory, an interface for transmitting the image data, the image data read from the main image storage unit, or the image data read from the first menu image memory; A first image synthesizing unit which is connected to the main image device, inputs the image data, the image data from the main image accumulating unit or the image data from the first menu image memory, and synthesizes them into one screen, A first image display device provided with a display unit for displaying based on a signal from the combining unit, and a first operation unit for selecting a desired image by referring to a menu image displayed on the display unit; An image selection display method in which data corresponding to the menu image selected in step (1) is read from the main image storage unit and displayed on the display unit. A first main image memory for storing image data of an input video signal;
The image data read from the main image memory is stored and recorded in the main image storage unit, and a menu image based on the image data read from the first main image memory is stored in the first menu image memory. 2. The image selection and display method according to claim 1, wherein the image data read from the main image memory, the image data read from the main image storage unit, or the image data read from the first menu image memory is transmitted through the interface. . 3. An image compression unit is provided in the main image device, and the image data or image data read from the first main image memory is compressed and stored in the first menu image memory. Or the image selection display method described in 2. 4. A second main image memory for storing the image data inputted from the first main image memory via the interface or an image data inputted from the first main image memory to the hand image device, A second menu image memory for storing image data, and a selected image memory for storing image data from the main image storage unit;
The image data read from the second main image memory, the image data read from the second menu image memory, or the image data read from the selected image memory are synthesized by the first screen synthesis unit. The image selection display method according to 1, 2, or 3. 5. The image processing apparatus according to claim 1, wherein the first screen combining unit combines the image data from the second main image memory and the image data from the second menu image memory into one screen and displays the combined data on the display unit. The image selection display method according to claim 4. 6. When a menu image is selected by the first operation section, corresponding image data is read from the main image storage section, stored in the selected image memory, read, and the second image data is read.
5. The image selection and display method according to claim 4, wherein the image data is input to the first screen synthesizing section together with the image data from the main image memory, and synthesized into one screen. 7. A personal computer device is connected to the main image device, and the personal computer device performs storage and recording of the main image, compression and storage of the menu image, etc., and executes the stored main image or the stored menu image. 7. The image selection and display system according to claim 1, wherein the image is read out and transmitted to the local image device via the interface. 8. An audio signal together with a video signal is input to the main image device, a first audio output unit is provided to output audio, and the audio signal data is stored together with image data in the main image storage unit. The second image output unit is provided in the hand image device, and audio data corresponding to an image is transmitted by selection of a menu image by the first operation unit, stored in the selected image memory, read out, and 8. The image selection and display method according to claim 1, wherein a sound is output from a sound output unit. 9. A main screen device comprising a second screen synthesizing section, wherein the image data read from the first main image memory and the image data read from the first menu image memory are synthesized into one screen. A second operation unit that projects the image on the screen and selects a desired image by referring to the projected menu image, and outputs image data corresponding to the menu image selected by operating the second operation unit to the main image 3. The image selection and display method according to claim 2, wherein the image is read from a storage unit and projected on a screen by the main image device.