CN1157947C - Image demonstration device having video camera - Google Patents
Image demonstration device having video camera Download PDFInfo
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- CN1157947C CN1157947C CNB001203630A CN00120363A CN1157947C CN 1157947 C CN1157947 C CN 1157947C CN B001203630 A CNB001203630 A CN B001203630A CN 00120363 A CN00120363 A CN 00120363A CN 1157947 C CN1157947 C CN 1157947C
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Abstract
To overlap a video pattern on a sheet table on a video from an external equipment connected to a video input terminal and to display them. A video level decision circuit 22 compares a level of an imaged video signal a1 with a reference level, discriminates the pattern part of a subject, outputs a binarized video signal c1 and supplies it to a video signal processing circuit 27 via a synchronous conversion circuit 23. The circuit 27 converts a binarized video signal f1 and a video signal b1 from a video input terminal 21 into a video signal g1 for display by overlapping the signal f1 on the signal b1 and supplies it to a liquid crystal panel 29.
Description
Technical field:
The present invention relates to a kind of image demonstration system, be used to make the image that is placed on the target imaging on the paper plate (stand) and is used for this target of demonstration on image demonstration device with video camera.
Background technology:
Usually, TV Monitor is used for various demonstration purposes.But recent various demonstrations are by using one or more CRT (cathode ray tube) to realize.
And, exist a great demand to demonstrate current in such as a narrow space of cubicle, meeting room or school, to carry out for liquid crystal projector.
In this case, a kind of be used to make such as the target imaging of file and the projecting apparatus class demo system that is used for the image of the target on the demonstration document plate with video camera be widely used to replace traditional OHP.Projecting apparatus class demo system handle by the image that uses the video camera captured object and the image projection of this target to screen.
The demo system of this projecting apparatus with video camera and so on disclosed among the disclosed Japanese patent application No.9-294236 on November 11st, 1997.
The demo system of this projecting apparatus class is made up of the demo system main control unit of a projecting apparatus class, a paper plate, a video camera and a lighting device.
Video camera is installed on the demo system main control unit of projecting apparatus class, is used for being placed on the paper plate and by the target imaging such as file of lighting device lighting.The image of this target is handled and is projected on the screen immediately by the demo system main control unit of projecting apparatus class.The demo system main control unit of projecting apparatus class also has handles picture intelligence that external equipment provides and with the function of its projection.
The image of the demo system projectable video camera captured object of traditional projecting apparatus class.Like this, when target was instructed to excellent appointment, specified part was caught and is projected on the screen immediately by video camera.This is very easily for the operator who explains specified part to spectators.The demonstration external equipment provide visual the time, the operator must specify the part that projects to the image on the screen.But having a problem in this case is exactly that the operator hides image on the screen.
As mentioned above, the demo system of traditional projecting apparatus class has such problem, promptly when image projection that external equipment provides specified the image that projects on the screen a part of to screen and during the operator is giving a lecture, its shade can hide the part of screen.
Summary of the invention:
An object of the present invention is to solve and these problems occurring in the technology, and a kind of image demonstration system is provided, the combination image that it is caught by image that external equipment is provided and video camera is showed two kinds of images together.
Another object of the present invention provides a kind of image demonstration system that can demonstrate the chromatic image of being caught by video camera.
The image demonstration system with video camera of first scheme is characterised in that it has been equipped with an accessory terminal, is used to receive first picture intelligence according to the present invention; A video camera is used for the target imaging so that second picture intelligence to be provided; A picture level determiner is used for by second picture intelligence is compared with reference level to determine the level of second picture intelligence, thereby a binary image signal is provided; An image signal processor is used for selectively this binary image signal and first picture intelligence being made up so that a demonstration signal to be provided; And a display unit, be used for by showing demonstration signal from image signal processor.
According to first scheme of the present invention, second image that video camera is caught is demonstrated on screen with first image that external equipment provides.Because second image is by binarization, so have only the characters/graphics image of medelling to be demonstrated in second image.Therefore, if the image of medelling is covered by first image on screen, it can become and be easy to allow spectators watch so.
The image demonstration system with video camera of alternative plan is characterised in that it has been equipped with an accessory terminal, is used to receive first picture intelligence according to the present invention; A paper plate; A video camera that is installed in the paper plate top is used for the target imaging on the paper plate so that second picture intelligence to be provided; A picture level determiner, the level of second picture intelligence that is used for determining that video camera provides is to provide a binary picture intelligence; A demo mode selector is used for selecting between first and second demo modes; An image signal processor, be used for handling of first and second picture intelligences and produce the first demonstration signal by first demo mode that response demo mode selector is selected, simultaneously, second demo mode of selecting by response demo mode selector makes up binary second picture intelligence and first picture intelligence produces the second demonstration signal; And a display unit, be used to show the first or second demonstration signal from image signal processor.
According to alternative plan of the present invention, the chromatic image of second image of being caught by video camera is demonstrated on screen with first image that external equipment provides.Therefore, if colorful second image is covered by first image on screen, it can become and be easy to allow spectators watch so.
According to an aspect of the present invention, provide a kind of image demonstration system with video camera here, it is characterized in that, comprising: an accessory terminal is used to receive first picture intelligence that provides from an external equipment; A video camera is used for the target imaging so that second picture intelligence to be provided; A picture level determiner is used for by second picture intelligence is compared to determine the level of second picture intelligence with reference level, so that a binary picture intelligence to be provided; An image signal processor is used for making up selectively the binary image signal and first picture intelligence so that a demonstration signal to be provided; With a display unit, be used to show demonstration signal from image signal processor.
According to another aspect of the present invention, provide a kind of image demonstration system with video camera here, it is characterized in that, comprising: an accessory terminal is used to receive first picture intelligence that provides from an external equipment; A paper plate; A video camera is installed in the paper plate top, is used for the target imaging on the paper plate, so that second picture intelligence to be provided; A picture level determiner, the level of second picture intelligence that is used for determining that video camera provides is lower than binary picture intelligence of a Benchmark brightness level so that its intensity level to be provided; A demo mode selector is used for selecting between first and second demo modes; An image signal processor, be used for responding selected first demo mode of demo mode selector and handle any of first and second picture intelligences and produce the first demonstration signal, response demo mode selector selected second demo mode makes up binary second picture intelligence and first picture intelligence and produces the second demonstration signal; And a display unit, be used to show the first or second demonstration signal from image signal processor; With a synchronizer, it is synchronous synchronously the binary image signal to be written to the binary image signal and first picture intelligence that make in the memory from the picture level determiner by the synchronizing signal that provides with video camera, then the binary image signal of reading from memory synchronously with first picture intelligence is provided to image signal processor.
According to a further aspect of the invention, provide a kind of image demonstration system with video camera here, it is characterized in that, comprising: one first accessory terminal is used to receive first picture intelligence that is provided by an external equipment; A video camera is used for the target imaging so that second picture intelligence that comprises luminance signal and color difference signal to be provided; A picture level/colored determiner is used for determining by second picture intelligence is compared with reference level that the level of second picture intelligence and color are with the binary system luminance signal that provides its intensity level to be lower than the reference level of a description, binary system color difference signal with based on the color picture signal of binary system luminance signal and binary system color difference signal; An image signal processor is used for making up selectively the color picture signal and first picture intelligence so that a demonstration signal to be provided; And a display unit, be used to show demonstration signal from image signal processor.
According to a further aspect of the invention, provide a kind of image demonstration system with video camera here, it is characterized in that, comprising: an accessory terminal is used to receive first picture intelligence that is provided by an external equipment; A paper plate; A video camera is installed in paper plate top, is used for the target imaging on the paper plate is lower than the luminance signal of reference level of a description and second picture intelligence that color difference signal constitutes to provide by its intensity level; A picture level/colored determiner is used for determining by second picture intelligence is compared with reference level that the level of second picture intelligence and color are to provide a binary system luminance signal, binary system color difference signal and based on the color picture signal of binary system luminance signal and binary system color difference signal; A demo mode selector is used for selecting between first and second demo modes; An image signal processor, any that is used for by response demo mode selector selected first demo mode is handled first and second picture intelligences produces the first demonstration signal, produces the second demonstration signal by selected second demo mode combination color picture signal of response demo mode selector and first picture intelligence; A display unit is used to show the first or second demonstration signal from image signal processor; With a synchronizer, synchronously the binary image signal is written in the memory by the synchronizing signal that provides with video camera, then the color picture signal of reading from memory synchronously with first picture intelligence is provided to image signal processor, this synchronizer can make from the color picture signal of image/colored determiner and first picture intelligence synchronous.
For the person of ordinary skill of the art, by studying the description and the accompanying drawing of a following combination and a formation specification part, other purpose of the present invention and advantage will become apparent.
Description of drawings:
Fig. 1 illustrates the block diagram of first embodiment of the image demonstration system with video camera of the present invention;
Fig. 2 illustrates the example block diagram of the synchronizer of Fig. 1;
Fig. 3 illustrates the figure of the operation that is used for first embodiment shown in the key-drawing 1;
Fig. 4 illustrates the block diagram according to second embodiment of image demonstration of the present invention system;
Fig. 5 illustrates the example block diagram of picture level/colored determiner of Fig. 4; And
Fig. 6 illustrates the figure that is used to explain operation embodiment illustrated in fig. 4.
Embodiment
With reference to accompanying drawing, promptly Fig. 1 to Fig. 6 will describe the present invention in detail.Fig. 1 illustrates the block diagram of first embodiment of the image demonstration system with video camera of the present invention.
In Fig. 1, the demo system 1 with projecting apparatus class of video camera is made up of demo system main control unit 20, paper plate and the video camera 10 of projecting apparatus class, and wherein video camera 10 is used for as the target imaging that is placed on the file on the paper plate.System can comprise a lighting device (not illustrating) that is used to illuminate the file that is placed on the paper plate selectively.Paper plate can be made of a blank, can be thereon directly written character or figure, and can support thereon file.
The demo system 1 of projecting apparatus class is handled the picture intelligence a1 by the target acquisition of video camera 10, and this target can be the letter/figure that is placed on the file on the paper plate or directly writes onboard/draw.Subsequently, the demo system 1 of projecting apparatus class image projection to screen 31.The demo system 1 of projecting apparatus class also receives other picture intelligence b1 that the external equipment 83 that is connected with the demo system main control unit 20 of projecting apparatus class through its accessory terminal 21 provides, to be used for demonstrating external image on screen 31.External equipment 83 can be by enforcement such as using a computer.
To describe the demo system main control unit 20 of projecting apparatus class below in detail.
The demo system main control unit 20 of projecting apparatus class comprises presentation processor 25, input selector 26, image signal processor 27, demo mode selector 28, liquid crystal board 29 and lamp 30 on accessory terminal 21, picture level determiner 22, synchronizer 23, combiner 24, the screen.
Be input to the first input end of picture level determiner 22 and input selector 26 by the picture intelligence a1 of video camera 10 acquisitions.
And offer second input of input selector 26 from another picture intelligence b1 that external equipment 83 is input to accessory terminal 21.
Picture level determiner 22 is determined the level of the picture intelligence a1 that video camera 10 is caught, and offering synchronizer 23 owing to be somebody's turn to do definite binary image signal c1 that be produced.In this case, picture level determiner 22 compares whether be lower than reference level with the brightness of determining picture intelligence a1 to picture intelligence a1 with reference level.Subsequently, picture level determiner 22 partly is defined as low-light level the realistic model of this target.Afterwards, determine that by this binary image signal c1 that is produced offers synchronizer 23.
The synchronous binary image signal c1 of employed synchronizing signal is synchronous with the picture intelligence b1 that provides by accessory terminal 21 in 23 of synchronizers and the video camera 10.The synchronous image signal d1 that obtains like this in synchronizer 23 has offered the first input end of combiner 24 immediately.
On the other hand, the character that the synchronous generation of picture intelligence b1 that presentation processor 25 and accessory terminal 21 provide on the screen will be demonstrated on screen 31 or the image of figure are used to demonstrate the information of the demo system 1 that will be used to operate the projecting apparatus class.
Combiner 24 combination synchronous image signal d1 and screen are gone up picture intelligence e1, and the thin like this picture intelligence f1 that closes is exported by it.
Demo mode selector 28 is selected a kind of specific demo mode by the button operation of response user on remote controller 84.Subsequently, demo mode may command input selector 26 and the image signal processor of in demo mode selector 28, selecting by response 27.
When demo mode selector 28 is selected to be used for to demonstrate from the picture intelligence a1 of video camera 10 or from one of the picture intelligence b1 of accessory terminal 21 demo mode the time, the picture intelligence a1 or the b1 of image signal processor 27 treatment of selected, like this, demonstration graph picture signals g1 is suitably handled and is provided for liquid crystal board 29 in image signal processor 27.On the other hand, when demo mode selector 28 was selected to be used for not only to demonstrate from the picture intelligence a1 of video camera 10 but also demonstrated another kind of demo mode from the picture intelligence b1 of accessory terminal 21, image signal processor 27 was combining from the binary image signal f1 of the combination of combiner 24 with from the picture intelligence b1 of accessory terminal 21.Subsequently, the demonstration graph picture signals g1 of the combination of binary image signal f1 with combination that obtains like this in image signal processor 27 and picture intelligence b1 has offered liquid crystal board 29.
Fig. 2 illustrates the enforcement block diagram of synchronizer shown in Figure 1.
In Fig. 2, synchronizer comprises writing controller 11, memory 12 and read-out controller 13.Writing controller 11 is written to binary image signal c1 in the memory 12 synchronously with the synchronizing signal that video camera 10 provides.Read-out controller 13 is read binary image signal c1 from memory 12 synchronously with the synchronizing signal of the picture intelligence b1 that is used for driving liquid crystal board 29.Correspondingly, the binary image signal d1 that reads from memory 12 is with all synchronous from the synchronizing signal of video camera 10 and external equipment 83.
Herein, because binary image signal c1 Already in the picture level determiner 22 before the synchronizer 23, so binary image signal c1 does not need through mould/number conversion.
To explain the operation of present embodiment below.For the purpose of simplifying the description, in this embodiment, the binary image signal e1 that goes up presentation processor 25 from screen is in holddown.
When the demo mode that is used for demonstrating the picture intelligence b1 that accessory terminal 21 provides operates in input selector 26 selected the time by remote controller 84, picture intelligence b1 offers liquid crystal board 29 through image signal processor 27 as picture intelligence g1, and projects to subsequently on the screen 31.
When being used for demonstrating from the demo mode of the picture intelligence a1 of video camera 10 when input selector 26 is selected, similar with the situation of picture intelligence b1, picture intelligence a1 offers liquid crystal board 29 as picture intelligence g1 and projects to subsequently on the screen 31.
When be used for demonstrating simultaneously from the picture intelligence a1 of video camera 10 and from the demo mode of other picture intelligence b1 of accessory terminal 21 when input selector 26 is selected, the binary image signal f1 that the picture intelligence 1 that image signal processor 27 provides video camera 10 is produced and combine from the picture intelligence b1 of accessory terminal 21.Therefore the demonstration graph picture signals g1 that has the described combination of the binary image signal f1 of combination and picture intelligence b1 is provided to liquid crystal board 29, and projects to immediately on the screen 31.
Fig. 3 illustrates the figure of the image of explaining that the picture intelligence b1 be used for image that the picture intelligence a1 of demonstration video video camera 10 simultaneously transmitted and accessory terminal 21 is transmitted.
In Fig. 3, the image that numeral 41 indications are had from the picture intelligence b1 of accessory terminal 21.The image that numeral 42 indications are demonstrated by the file that is placed on the paper plate.The image of being demonstrated on numeral 43 instruction screens 31.In screen image 41, demonstration " current phase object record 20 " respectively, " physical record 17! " and " target is finished! " three demonstrations 44,45 and 46 on direction from top to bottom, show.
When the picture intelligence b1 of screen image 41 was provided to accessory terminal 21 simultaneously on each diagram plots of oval 47, check mark 48 and fine rule 49 is placing paper on the paper plate, the figure of oval 47, check mark 48 and fine rule 49 was stackable on the image area 44,45 and 46 of image 43.
As mentioned above, according to embodiments of the invention, on video camera 10 is demonstrated the visual stackable image of being demonstrated to external equipment 83.Correspondingly, the image that is coming from external equipment as the operator specify during the demonstration on the screen 31 be positioned over the arbitrary portion of the file on the paper plate or on paper plate, directly draw letter or figure in, identical operations can be demonstrated on screen 31, and without any need for the operation that specifies in the image of demonstration on the screen 31.Like this, the operator can specify image easily and need not move to screen 31.
And, because the picture intelligence a1 that video camera 10 is caught carries out binarization by picture level determiner 22, so having only letter and/or figure is demonstrated or is superimposed upon on other image, promptly come from the image of picture intelligence of external equipment 83, suppressed unnecessary image simultaneously, i.e. the appearance of noisy image.
Fig. 4 illustrates the block diagram according to second embodiment of image demonstration of the present invention system.In Fig. 4 with the similar element of Fig. 1 with identical reference number demonstration and ignored description of them.
In Fig. 4, the demo system 5 of projecting apparatus class is made up of the demo system main control unit 50 of video camera 10 and projecting apparatus class.The difference of second embodiment shown in Figure 4 and first embodiment shown in Figure 1 is the picture level/colored determiner 52 of use in the demo system main control unit 50 of projecting apparatus class, and it has replaced the picture level determiner 22 that uses in the demo system main control unit 22 of the projecting apparatus class of first embodiment.
Picture level/colored determiner 52 is determined level and the color of the picture intelligence a1 that video camera 10 provides.Have the level of picture intelligence a1 and the picture intelligence c2 of colour information and offer synchronizer 53 subsequently.Picture intelligence c2 is also synchronous with the synchronizing signal that video camera 10 provides.
Synchronizer 53 is synchronous with the picture intelligence b1 that provides by accessory terminal 21 picture intelligence c2.Subsequently, the synchronous colour signal d2 that obtains like this in synchronizer 53 offers the first input end of combiner 54.
Shows signal e1 makes up in combiner 54 colour signal d2 with shielding upward synchronously, and the combination color picture signal f2 that obtains like this in combiner 54 offers image signal processor 57.
When demo mode selector 28 is selected to be used for to demonstrate simultaneously from the combination color picture signal f2 of combiner 54 and during from the demo mode of the picture intelligence b1 of accessory terminal 21, image signal processor 27 combines combination color picture signal f2 and picture intelligence b1.The demonstration graph picture signals g1 of the combination with combination color picture signal f2 and picture intelligence b1 that obtains like this in image signal processor 57 subsequently, offers liquid crystal board 29.
Correspondingly, the image that is transmitted by picture intelligence a1 from video video camera 10, for example directly write/be drawn in the image of letter/figure on the paper plate or be placed on the image of the file on the paper plate, and be added on the screen 31 from the image that the picture intelligence b1 of accessory terminal 21 is transmitted.The image that picture intelligence a1 is demonstrated can with the identical color dyes of letter/figure of writing/being drawn on the paper plate or on file.
Fig. 5 illustrates the example block diagram of picture level/colored determiner 52 of Fig. 4.
In Fig. 5, terminal 61,62 and 63 receives luminance signal and the two kinds of color difference signals that are contained among the picture intelligence a1, i.e. each among R-Y signal a12 and the B-Y signal a13 respectively.All these signals a11, a12 and each among the a13 are all passed through in picture level determiner 64,65 and 66 to determine its signal level and by binarization.Three binary black, red and blue signal h11, the h12 and the h13 that obtain like this in picture level determiner 64,65 and 66 offer encoder 67 immediately.Encoder 67 coded binary signal h11, h12 and h13.Thereby the picture intelligence c2 that is made up of black, the red and blue signal h11 of binary system, h12 and h13 is by picture level/colored determiner 52 outputs.Correspondingly, picture level/colored determiner 52 can be by being contained in the color of determining the letter/figure on the file or on the paper plate from the level of luminance signal among the picture intelligence a1 of television camera 10 and color difference signal.
Fig. 6 is used for explaining in the embodiment shown in fig. 4, as the figure of the operation when the image overlay of accessory terminal 21 is to the image of video camera 10 outputs.
In Fig. 6, the image that numeral 71 indications are transmitted by the picture intelligence b1 from accessory terminal 21.The image that numeral 72 indications are demonstrated by the file that is placed on the paper plate.The image of being demonstrated on numeral 73 instruction screens 31.In image 71, demonstration " current phase object record 20 " respectively, " physical record 17! " and " target is finished! " three demonstrations 74,75 and 76 on direction from top to bottom, show.
When color is respectively black, red and blue figure 77,78 and 79 and is drawn on a piece of paper that is positioned on the paper plate simultaneously the picture intelligence b1 of screen image 71 when being provided to accessory terminal 21, figure 77,78 and 79 is stackable on the image area 74,75 and 76 of image 73.
According to aforesaid second embodiment of the invention, on the visual stackable image of being demonstrated to external equipment 83 of video camera 10 demonstration.Thereby, the effect that second embodiment is had is, can use the figure 77,78 and 79 on the color demonstration screen 31 identical, thereby increase the visuality of figure, further strengthen the effect that is obtained among first embodiment shown in Figure 1 with figure on the file that is drawn in paper plate.
In these embodiments, be used to demonstrate binary image signal e1, also have binary image signal d1 (d2) in addition, also can remove screen and go up presentation processor 25 although screen is gone up presentation processor 25 (seeing Fig. 1,4).And liquid crystal board 29 and lamp 30 can use any proper device to replace, as cathode ray tube.
According to the present invention, on the image that external equipment is exported because the pattern of the image on the paper plate is added to, so when the output image of the external equipment that is connected with accessory terminal is projected, the operator can specify or the part of highlighted display file plate or on paper plate, make one's cross symbol or figure to specify the image in the image display apparatus, this will help the operator.
As mentioned above, the present invention can provide extraordinary image demonstration system with video camera.
Although illustrated and described the current most preferred embodiment of considering of the present invention, but those of ordinary skill in the art is to be understood that, under the situation that does not deviate from true scope of the present invention, can carry out various changes and modifications, and can replace element of the present invention with equivalence element to the present invention.In addition, can much improve so that special circumstances or material are adapted to aim of the present invention, and can not deviate from center range of the present invention.Therefore, should know that the present invention is not limited to the disclosed specific embodiment as carrying out optimal mode of the present invention, but the present invention includes all embodiment within the appended claims scope.
Claims (7)
1. the image demonstration system with video camera is characterized in that, comprising:
An accessory terminal is used to receive first picture intelligence that provides from an external equipment;
A video camera is used for the target imaging so that second picture intelligence to be provided;
A picture level determiner is used for by second picture intelligence is compared to determine the level of second picture intelligence with reference level, so that a binary picture intelligence to be provided;
An image signal processor is used for making up selectively the binary image signal and first picture intelligence so that a demonstration signal to be provided; With
A display unit is used to show the demonstration signal from image signal processor.
2. the image demonstration system with video camera is characterized in that, comprising:
An accessory terminal is used to receive first picture intelligence that provides from an external equipment;
A paper plate;
A video camera is installed in the paper plate top, is used for the target imaging on the paper plate, so that second picture intelligence to be provided;
A picture level determiner, the level of second picture intelligence that is used for determining that video camera provides is lower than binary picture intelligence of a Benchmark brightness level so that its intensity level to be provided;
A demo mode selector is used for selecting between first and second demo modes;
An image signal processor, be used for responding selected first demo mode of demo mode selector and handle any of first and second picture intelligences and produce the first demonstration signal, response demo mode selector selected second demo mode makes up binary second picture intelligence and first picture intelligence and produces the second demonstration signal; And
A display unit is used to show the first or second demonstration signal from image signal processor; With
A synchronizer, it is synchronous synchronously the binary image signal to be written to the binary image signal and first picture intelligence that make in the memory from the picture level determiner by the synchronizing signal that provides with video camera, then the binary image signal of reading from memory synchronously with first picture intelligence is provided to image signal processor.
3. the image demonstration system with video camera according to claim 2, it is characterized in that, described display unit is made up of a liquid crystal projection apparatus and the screen with light source and liquid crystal board, wherein liquid crystal board is bright by the illumination from light source, have by first or second demonstration any transmissivity of controlling in the signal, described screen is passed the visual light institute projection of liquid crystal board.
4. the image demonstration system with video camera is characterized in that, comprising:
One first accessory terminal is used to receive first picture intelligence that is provided by an external equipment;
A video camera is used for the target imaging so that second picture intelligence that comprises luminance signal and color difference signal to be provided;
A picture level/colored determiner is used for determining by second picture intelligence is compared with reference level that the level of second picture intelligence and color are with the binary system luminance signal that provides its intensity level to be lower than the reference level of a description, binary system color difference signal with based on the color picture signal of binary system luminance signal and binary system color difference signal;
An image signal processor is used for making up selectively the color picture signal and first picture intelligence so that a demonstration signal to be provided; And
A display unit is used to show the demonstration signal from image signal processor.
5. the image demonstration system with video camera is characterized in that, comprising:
An accessory terminal is used to receive first picture intelligence that is provided by an external equipment;
A paper plate;
A video camera is installed in paper plate top, is used for the target imaging on the paper plate is lower than the luminance signal of reference level of a description and second picture intelligence that color difference signal constitutes to provide by its intensity level;
A picture level/colored determiner is used for determining by second picture intelligence is compared with reference level that the level of second picture intelligence and color are to provide a binary system luminance signal, binary system color difference signal and based on the color picture signal of binary system luminance signal and binary system color difference signal;
A demo mode selector is used for selecting between first and second demo modes;
An image signal processor, any that is used for by response demo mode selector selected first demo mode is handled first and second picture intelligences produces the first demonstration signal, produces the second demonstration signal by selected second demo mode combination color picture signal of response demo mode selector and first picture intelligence;
A display unit is used to show the first or second demonstration signal from image signal processor; With
A synchronizer, synchronously the binary image signal is written in the memory by the synchronizing signal that provides with video camera, then the color picture signal of reading from memory synchronously with first picture intelligence is provided to image signal processor, this synchronizer can make from the color picture signal of image/colored determiner and first picture intelligence synchronous.
6. the image demonstration system with video camera according to claim 5 is characterized in that described picture level/colored determiner comprises an encoder, and described colour signal from binary system luminance signal and binary system color difference signal is used to encode.
7. the image demonstration system with video camera according to claim 5, it is characterized in that, described display unit comprises that by one the liquid crystal projection apparatus of light source and color liquid crystal plate and a screen form, wherein the color liquid crystal plate is bright by the illumination from light source, have by any transmissivity controlled in the first or second demonstration signal, and screen is passed the visual optical projection of color liquid crystal plate.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14681299A JP3507727B2 (en) | 1999-05-26 | 1999-05-26 | Video display device with camera device |
| JP146812/1999 | 1999-05-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1275862A CN1275862A (en) | 2000-12-06 |
| CN1157947C true CN1157947C (en) | 2004-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001203630A Expired - Fee Related CN1157947C (en) | 1999-05-26 | 2000-05-26 | Image demonstration device having video camera |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3507727B2 (en) |
| CN (1) | CN1157947C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7164392B2 (en) | 2002-08-06 | 2007-01-16 | Fujinon Corporation | Material presentation device |
| JP2005122323A (en) | 2003-10-14 | 2005-05-12 | Casio Comput Co Ltd | Photographing apparatus, image processor, and image processing method and program for photographing device |
| JP5099371B2 (en) | 2007-01-31 | 2012-12-19 | 日本電気株式会社 | Image quality evaluation method, image quality evaluation apparatus, and image quality evaluation program |
-
1999
- 1999-05-26 JP JP14681299A patent/JP3507727B2/en not_active Expired - Fee Related
-
2000
- 2000-05-26 CN CNB001203630A patent/CN1157947C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP3507727B2 (en) | 2004-03-15 |
| JP2000341588A (en) | 2000-12-08 |
| CN1275862A (en) | 2000-12-06 |
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