CN101795419A - Technical scheme for transforming 2D video image signals to 3D video image signals and application thereof - Google Patents
Technical scheme for transforming 2D video image signals to 3D video image signals and application thereof Download PDFInfo
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Abstract
The invention relates to a technical scheme for transforming 2D video image signals to 3D video image signals and application thereof. A video image signal flow decomposing and combining module, a video image signal flow delaying module and a video image signal flow interface transforming module are combined in the technical scheme and keep electrical connection mutually. The inputted 2D video image signal flows in different interface formats are decomposed into two paths of video image signal flow, one path of video image signal flow is properly delayed, then the processed two paths of video image signal flow are sent to a display terminal for displaying, the video display terminal displays two slightly different images with parallax for the same image content at the moment, and then strong stereoscopic impression is presented when people watch through corresponding special three-dimensional glasses. The invention is widely applied to equipment comprising broadcast television networks, electronic video equipment, internet, DVD, VCD, computer videos and the like.
Description
Technical field:
The invention belongs to the conversion process field of the video signal in the application technology.Be switch technology and the application that the video signal of planar (2D) is converted to efficiently, in real time, cheaply 3D video signal with three-dimensional stereo effect.
Background technology:
3D (three-dimensional) three-dimensional film " A Fanda " the very big interest of people to the 3D rendering video of having ignited hews out the great market space of 3D video image.But the 3D video image is taken with high costs, and it is very deficient to have taken the 3D video signal source of finishing at present.Simultaneously, the existing technology that the 2D video signal is converted to the 3D video signal is quite complicated, expensive, can't be converted into the 3D video image efficiently, in real time, cheaply.Thus, can't satisfy market and users user demand to the 3D video image.
Summary of the invention:
The objective of the invention is according to above-mentioned weak point, propose a kind of the 2D video signal to be converted to the technical scheme with very strong 3D stereoeffect video signal, not only realized of succinct, efficient, low-cost, the real-time conversion of 2D video image to the 3D effect video image; And effectively utilized existing abundant 2D video image film source again.
By technical scheme proposed by the invention, the 2D video signal can be converted to the video signal with 3D effect also can show on corresponding display terminal, when the beholder watches by corresponding special-purpose anaglyph spectacles, the image on the display terminal will produce strong third dimension.
Great advantage of the present invention is exactly by technological innovation, can flow by video signal abundant at present 2D image/video film source is succinct, efficient, low-cost, that real-time converting to has strong 3D stereoeffect, and can on display terminal, show, such as: television set, computer monitor, LED large-size screen monitors, projecting apparatus, MP4 etc.; The beholder carries out watching of 3 D stereo video image by corresponding special-purpose anaglyph spectacles.
Beneficial effect of the present invention:
1. video resource availability height
Can fully now the video resource second use of abundant planar (2D) will be had, convert it to video signal efficiently, in real time, cheaply with strong three-dimensional stereo effect, make the user can enjoy colourful 3 D stereo (3D) Video service cheaply, and need not ancillary cost huge fund and the special 3D video of time shooting;
2. can be used for various display terminals
By technical scheme provided by the present invention the 2D video signal is converted to the video signal with strong 3D effect, can on display terminals such as television set, computer monitor, LED large-size screen monitors, rear-projection, projecting apparatus, MP4, shows.
3. be applicable to multiple signal format
The present invention can have the conversion of the video image signal of telecommunication of 3D effect to the 2D video image signal of telecommunication of simulation, number format; Can carry out the 3D conversion of signals to the 2D signal of different images resolution (definition), such as: the vision signal of resolution such as VGA, QVGA, the 2D of the vision signal of resolution such as SD, HDTV (High-Definition Television) changes to 3D.
4. the technology use cost is low
With respect to complex technology and the equipment of the existing 2D video image of industry to 3D video image conversion, can realize of the conversion of 2D video cheaply to video image with very strong 3D effect, be convenient to realize popularization at vast individual user;
5. use the field wide
The present invention can be widely used in field of video displaying such as computer video demonstration, TV, monitoring, and common plane two-dimensional video picture signal is converted to the video signal with very strong three-dimensional stereo effect.
Processing and individual terminal that the present invention can be used in public video signal source respectively show this two links:
Public video signal source processing links
2D video signal source can be converted to the 3D video signal, the form with numeral or simulation sends public users to then, makes it receive simultaneously and show the 3D video signal by corresponding display terminal.
Individual terminal shows link
The individual consumer can with receive such as: 2D vision signals such as DVD, VCD, anolog TV signals, digital television signal are converted to the 3D vision signal by the present invention, play demonstration by display terminal then.
Know-why of the present invention:
The relief principle that presents when the present invention is based on the eye-observation image, that is: when human eye was watched a secondary scenery, the simple eye image of seeing in the left and right sides was slightly different, promptly has certain parallax, produces the stereo perception of image by the visual experience of human brain.
The basic condition that the present invention realizes is:
The continuous videos image that we are seen on display terminal is actually that the interruption of a frame (field) frame (field) shows, only because frame frequency (field frequency) is very high, because the visual persistence effect of human eye makes us feel that video image presents continuously.That is to say, the continuous signal stream that transmits video image can equivalence be to be the transmission video image information that is interrupted at a frame (field) frame (field) also, because frame frequency (field frequency) is very high, so when on display terminal, showing, because of the visual persistence effect of human eye, what make that the beholder feels to see is the continuous images video.
For continuous video image, because the influence of the motion of image, the factors such as variation of scene, time is slightly different at a distance of nearer different frame (field) video image displayed content, and at a distance of frame (field) far away more, the picture material difference of its demonstration is big more on the time.
The present invention is according to this basic principle and primary condition, by technological innovation 2D video signal stream is handled accordingly, will by in the video flowing frame by frame the same picture material that transmits of the mode of (field) be decomposed into the slightly different picture material of two width of cloth, being about to same width of cloth picture breakdown is two width of cloth images that have certain parallax, and shows on display terminal.The beholder is by corresponding special-purpose anaglyph spectacles, and the left and right sides that makes the slightly different images that have a parallax of this two width of cloth enter the people respectively is simple eye, makes the beholder of video image produce strong 3D stereoeffect.
Key technical feature of the present invention is:
Earlier 2D video signal stream (analog format or number format) decomposition and combination is two-path video picture signal stream (analog format or number format), then wherein road video signal is flow to the line delay operation, the time-delay time can be different according to vision signal frame frequency (field frequency) adjust accordingly, the scope that time-delay is adjusted is several～tens frames (field), to present best 3D stereoeffect.
The video signal flow of video signal flow of will not delay time and process time-delay has shown on display terminal then.The user is by special-purpose anaglyph spectacles, the left and right sides of respectively picture material that is shown in the mode of frame (field) by the video signal flow after stream of delayed video signal not and the time-delay on the display terminal being sent into the people respectively is simple eye, the picture material of being showed at a distance of nearer different frame (field) because of the time in the video signal flow is slightly different, there is certain parallax in the simple eye image of seeing in beholder's the left and right sides thus, produces strong 3D stereoeffect thus.
The present invention is realized jointly by 3 main functional circuit module.Overall system structure combination schematic diagram of the present invention is seen accompanying drawing 1.Three modules keep being electrically connected, and the function of each module is as follows:
1,1. the video signal flow point is separated composite module
It is characterized in that, the 2D video signal flow point of distinct interface form of input separated be combined into two-path video picture signal stream, 2. a road (video signal stream 2) that then will be wherein given the signal lag module and carried out delay process, and another road (video signal stream 1) directly gives 3. video signal stream interface modular converter.
Importing 1. video signal flow point, to separate the form of the 2D video signal stream of composite module can be diversified, such as: HD-SDI, HDMI, DVI, SDI, VGA, Y/Pr/Pb, Y/Cr/Cb, S terminal, CVBS video signal flow interface formats such as (Av).
2,2. module during the video signal curtain coating
It is characterized in that, 1. video signal flow point is separated the road video signal stream (video signal stream 2) that composite module sends here carry out delay process, export to 3. video signal stream interface modular converter then.
The delay time of module can flow different frame frequency (field frequency) according to video signal and adjusts accordingly during the video signal curtain coating, and the scope that time-delay is adjusted is several～tens frames (field), to realize the 3D stereoeffect of the best.
3,3. video signal stream interface modular converter
It is characterized in that, to separate composite module and two-path video picture signal stream (video signal stream 2 that 2. module is sent here during the video signal curtain coating by 1. video signal flow point, video signal stream 1) carry out interface conversion, convert to various different display terminals the interface format of the corresponding video signal flow that can receive, such as: HD-SDI, HDMI, DVI, SDI, VGA, Y/Pr/Pb, Y/Cr/Cb, the S terminal, CVBS video signal flow interface formats such as (Av), and it can be shown with the three-dimensional presentation mode of common 3D, and carry out watching of 3D stereoscopic video images by corresponding professional anaglyph spectacles on video display terminal.Such as: color-dividing system 3D stereoscopic video images presentation mode, time sharing system 3D stereoscopic video images presentation mode, beam split system 3D stereoscopic video images presentation mode, split screen system 3D stereoscopic video images presentation mode or even free stereo system 3D stereoscopic video images presentation mode.
At the different presentation modes of present 3D three-dimensional video-frequency, the technical characterictic of respectively forming module in the system configuration of the present invention (seeing accompanying drawing 1) further specifies as follows:
1, the presentation mode of color-dividing system 3D three-dimensional video-frequency
Color-dividing system 3D three-dimensional video-frequency presentation mode adopts the image that two width of cloth are slightly different to show on terminal simultaneously with two kinds of different colors, the beholder makes the simple eye image that has parallax of seeing respective color respectively in the left and right sides by the three-dimensional color separation glasses of special use, produces strong 3D stereoeffect with this.
Presentation mode at color-dividing system 3D three-dimensional video-frequency, in the system configuration shown in the accompanying drawing 1 1. the video signal flow point technical characterictic of separating composite module be three road image video signals stream that the 2D video signal stream of distinct interface form that will input is decomposed into R (red)/G (green)/B (indigo plant) three primary colors, then the video signal flow of these three tunnel three kinds of different colours is combined into two-path video picture signal stream, this two-path video picture signal stream can be a kind of in following three kinds of situations:
B (indigo plant)+G (green) combined colors video signal stream and R color video signal stream;
B (indigo plant)+R (red) combined colors video signal stream and G (green) color video signal stream;
R (red)+G (green) combined colors video signal stream and B (indigo plant) color video signal stream.
Then this two-path video signal flow module of leading up to 2. during the video signal curtain coating is wherein carried out delay process, another road directly sends 3. video signal stream interface modular converter to.
3. video signal stream interface modular converter will be through delay process and is not merged into one road video signal stream through the video signal stream of delay process, gives the generic video display terminal through interface conversion and shows.The user can watch the video image of strong 3D stereoeffect by special-purpose color separation anaglyph spectacles.
The presentation mode of this 3D stereo-picture can be realized the demonstration of 3D stereo-picture by the common video display terminal, does not need special-purpose Stereoscopic Video Presentation terminal.
2, the presentation mode of time sharing system 3D three-dimensional video-frequency
Time sharing system 3D three-dimensional video-frequency presentation mode refers to that the slightly different image of two width of cloth is to show the branch time on video display terminal.For example, image 1 shows in odd-numbered frame (field), and image 2 shows in even frame (field), by special use timesharing synchro switch anaglyph spectacles is housed, can allow the simple eye image that can only watch corresponding frame (field) in the left and right sides, the formation parallax produces strong third dimension.
In time sharing system 3D three-dimensional video-frequency presentation mode, in the system of the present invention 1. the video signal flow point function of separating composite module be that the 2D video signal stream of distinct interface form that will input is decomposed into the same video signal stream of two-way, one the tunnel directly sends 3. video signal stream interface modular converter to, and module was carried out delay process when the video signal curtain coating was given in another road 2..
3. video signal stream interface modular converter will be merged into one road video signal with two-path video picture signal stream and flow through delay process and the mode that interleaves successively according to picture frame (field) in the two paths of signals stream through the video signal of delay process stream.Promptly in the stream of the video signal after merging, the picture frame (field) of the preceding video signal stream 1 of merging is put in odd-numbered frame (field) position that merges rear video picture signal stream, and the picture frame (field) of the preceding video signal stream 2 of merging is put in even frame (field) position of the video signal stream after the merging.
Video signal stream after the merging is delivered on the video display terminal through interface conversion and is shown that the user carries out watching of 3D stereoscopic video images by the time sharing system anaglyph spectacles that synchro switch is housed.
3, the presentation mode of beam split system 3D three-dimensional video-frequency
Beam split system 3D three-dimensional video-frequency presentation mode is meant that the slightly different images that have a parallax of two width of cloth are presented on the display terminal with the form of two-way crossed polarized light simultaneously, such as: projection screen, film curtain etc., the 3D video presentation mode that the user watches by the polarised light anaglyph spectacles.
In this mode, in the system of the present invention 1. the video signal flow point function of separating composite module be that the 2D video signal stream of distinct interface form that will input is decomposed into the same video signal stream of two-way, one the tunnel directly sends 3. video signal stream interface modular converter to, and module was carried out delay process when the video signal curtain coating was given in another road 2..
3. video signal stream interface modular converter will be through delay process and is not carried out the signaling interface format conversion through the video signal flow point of delay process, give two projection terminals then respectively, the projection terminal with the form of mutually orthogonal polarised light with the image projection of two-path video picture signal stream on curtain, the user carries out watching of 3D video by the polarised light anaglyph spectacles.
4, the presentation mode of split screen system 3D three-dimensional video-frequency
The presentation mode of split screen system 3D three-dimensional video-frequency is meant that two width of cloth are slightly different and exists the image of parallax to show on two terminals that respectively beholder's right and left eyes is only watched the image information on one of them display terminal respectively, produces strong 3D third dimension.
In this mode, in the system of the present invention 1. the video signal flow point function of separating composite module be that the 2D video signal stream of distinct interface form that will input is decomposed into the same video signal stream of two-way, one the tunnel directly sends 3. video signal stream interface modular converter to, and module was carried out delay process when the video signal curtain coating was given in another road 2..
3. video signal stream interface modular converter will be through delay process and is not carried out the signaling interface format conversion through the video signal flow point of delay process, give two display terminals then respectively, the user only watches the image information of corresponding display terminal to realize watching of 3D video respectively by right and left eyes.
The present invention flows to the translation function with strong 3D three-dimensional video-frequency effect video signal stream for realizing the 2D video signal, according to different operating position, can by the 1. video signal flow point in the accompanying drawing 1 separate composite module, 2. module during the video signal curtain coating, 3. these three modules of video signal stream interface modular converter make up flexibly and form four kinds of compound modes of the present invention.
A, form the present invention by 1.+2.+3. three modules;
B, form the present invention by 1.+2. two modules;
C, form the present invention by 2.+3. two modules;
D, form the present invention by 2. module.
Description of drawings:
Accompanying drawing 1: be overall system structure combination schematic diagram of the present invention.
Accompanying drawing 2: for using schematic diagram in public sphere of the present invention.
Accompanying drawing 3: for using schematic diagram in the individual field of the present invention.
System of the present invention has realized the video signal stream with 2D video signal stream is succinct, efficient, low-cost, real-time converting to has the 3D stereoeffect, and can on video display terminal, the mode with color separation, timesharing, light splitting, split screen show, by corresponding Special stereoscopic glasses, make the beholder produce strong three-dimensional 3D effect.
Embodiment:
The present invention system to different environments for use can by in the accompanying drawing 1 1., 2., 3. four kinds of compound modes of three modules are achieved.
The product form that adopts technical solution of the present invention to form is two kinds:
A, independent form: self-existent 3D video-frequency signal converter product form;
B, built-in form: the system integration of the present invention advances to use video electronic devices.Such as, the product form of television set, computer, MP4, VCD, DVD, digital TV set-top box etc.
The application of system of the present invention is that individual video is used and two fields of public Video Applications:
Public field of video applications
This field refers to field of broadcast televisions, field of video monitoring, internet video field, IPTV field.
System of the present invention with public 2D video signal source carry out efficiently, in real time, 3D stereo video signals conversion process cheaply, be sent to the video display terminal place of public users by the Internet, broadcasting and television network then and display, the user carries out watching of 3D rendering by corresponding special-purpose anaglyph spectacles.As shown in Figure 2.
Individual field of video applications
Refer to that individual user can will obtain by the Internet, broadcasting and television network by product of the present invention, or local generation (such as: video source such as DVD, VCD, computer video file) efficient, low-cost, the real-time conversion process of carrying out the 3D video signal of 2D image video signal, show on individual consumer's video display terminal then, individual user carries out watching of 3D rendering by corresponding special-purpose anaglyph spectacles.As shown in Figure 3.
Claims (6)
1. a 2D video signal is converted to the technical scheme and the application of 3D video signal, the realization that it is characterized in that systemic-function is made up of 3 main modular, module, video signal stream interface modular converter when the video signal flow point is separated composite module, video signal curtain coating, three modules keep electric connection;
The video signal flow point is separated composite module and the 2D video signal flow point of distinct interface form of input is separated is combined into two-path video picture signal stream, give the signal lag module with road video signal stream wherein then and carry out delay process, another road video signal stream is directly given video signal stream interface modular converter.The video signal flow point is separated composite module can carry out decomposition and combination to the 2D video signal stream of multiple interfaces form of input, i.e. HD-SDI, HDMI, DVI, SDI, VGA, Y/Pr/Pb, Y/Cr/Cb, S terminal, CVBS video signal flow interface formats such as (Av);
Module is separated road video signal that composite module sends here with the video signal flow point and is flow to line delay and handle during the video signal curtain coating, exports to video signal stream interface modular converter then.The delay time of module can flow different frame frequency (field frequency) according to video signal and adjusts accordingly during the video signal curtain coating, and the scope that time-delay is adjusted is several～tens frames (field), to realize the 3D stereoeffect of the best;
The two-path video picture signal that module was sent here when video signal stream interface modular converter will be separated composite module and video signal curtain coating by the video signal flow point flows to the line interface conversion, convert to various different display terminals the interface format of the corresponding video signal flow that can receive, that is: HD-SDI, HDMI, DVI, SDI, VGA, Y/Pr/Pb, Y/Cr/Cb, the S terminal, CVBS video signal flow interface formats such as (Av), and it can be shown on video display terminal with the three-dimensional presentation mode of common 3D, and carry out watching of 3D stereoscopic video images by corresponding professional anaglyph spectacles and be color-dividing system 3D stereoscopic video images presentation mode, time sharing system 3D stereoscopic video images presentation mode, beam split system 3D stereoscopic video images presentation mode, split screen system 3D stereoscopic video images presentation mode, or even free stereo system 3D stereoscopic video images presentation mode.
2. a 2D video signal is transformed into technical scheme and the application that the 3D video signal is changed, it is characterized in that the 2D video signal flow point with input is a two-way, to wherein one the tunnel carrying out suitable delay process, to on video display terminal, present the slightly different different image frames of two width of cloth that have parallax through delay process with untreated video signal stream then, when watching, present strong third dimension by corresponding special-purpose anaglyph spectacles.
3. a technical scheme and application that the 2D video signal is changed to the 3D video signal, it is characterized in that the presentation mode that is applicable to multiple 3D three-dimensional video-frequency is: color-dividing system, time sharing system, beam split system, split screen system, even free stereo 3D video image presentation mode, at different 3D video presentation modes, the technical scheme of this each module of system is as follows:
The presentation mode of A, color-dividing system 3D three-dimensional video-frequency:
The video signal flow point is separated three road image video signals stream that composite module is decomposed into the 2D video signal stream of the distinct interface form of input R (red)/G (green)/B (indigo plant) three primary colors, video signal flow with these three tunnel three kinds of different colours is combined into two-path video picture signal stream then, and this two-path video picture signal stream can be: B (indigo plant)+G (green) combined colors video signal stream and R color video signal stream; Or B (indigo plant)+R (red) combined colors video signal stream and G (green) color video signal stream; Or R (red)+G (green) combined colors video signal stream and B (indigo plant) color video signal stream.
Then this two-path video signal flow module of leading up to during the video signal curtain coating is wherein carried out delay process, another road directly sends video signal stream interface modular converter to,
Video signal stream interface modular converter will be through delay process and is not merged into one road video signal stream through the video signal stream of delay process, gives the generic video display terminal through interface conversion and shows;
The 3D three-dimensional video-frequency presentation mode of B, time sharing system:
The video signal flow point is separated composite module the 2D video signal stream of distinct interface form of input is decomposed into the same video signal stream of two-way, one the tunnel directly sends video signal stream interface modular converter to, and module was carried out delay process when the video signal curtain coating was given on another road;
Video signal stream interface modular converter will be merged into one road video signal with two-path video picture signal stream and flow through delay process and the mode that interleaves successively according to picture frame (field) in the two paths of signals stream through the video signal of delay process stream.Promptly in the stream of the video signal after merging, the picture frame (field) of video signal stream 1 is put in odd-numbered frame (field) position that merges rear video picture signal stream before merging, the picture frame (field) of the preceding video signal stream 2 of merging is put in even frame (field) position of the video signal stream after the merging, and the video signal stream process interface conversion after the merging is delivered on the video display terminal and shown;
The 3D three-dimensional video-frequency presentation mode of C, beam split system:
The video signal flow point is separated composite module the 2D video signal stream of distinct interface form of input is decomposed into the same video signal stream of two-way, one the tunnel directly sends video signal stream interface modular converter to, module was carried out delay process when the video signal curtain coating was given on another road, video signal stream interface modular converter will be through delay process and is not carried out the signaling interface format conversion through the video signal flow point of delay process, give two projection terminals then respectively, the projection terminal is showing the image projection that the two-path video picture signal flows on the curtain with the form of mutually orthogonal polarised light;
The presentation mode of D, split screen system 3D three-dimensional video-frequency:
The video signal flow point is separated composite module the 2D video signal stream of distinct interface form of input is decomposed into the same video signal stream of two-way, one the tunnel directly sends video signal stream interface modular converter to, and module was carried out delay process when the video signal curtain coating was given on another road;
Video signal stream interface modular converter will be through delay process and is not carried out the signaling interface format conversion through the video signal flow point of delay process, gives two display terminals then respectively and shows synchronously.
4. according to claim 1,2,3 described technical schemes of the present invention, its feature can realize system of the present invention by following four kinds of module combinations modes
Module+video signal stream interface modular converter when A, video signal flow point are separated composite module+video signal curtain coating;
Module when B, video signal flow point are separated composite module+video signal curtain coating;
Module when C, video signal curtain coating+video signal stream interface modular converter;
Module when D, video signal curtain coating.
5. according to claim 1,2, the 3 described products of realizing by technical solution of the present invention, it is characterized in that being two kinds of product form: independent form, promptly self-existent 3D video-frequency signal converter product form; Built-in form advances to use video electronic devices with the present invention is integrated, such as, product form such as television set, computer, MP4, VCP, DVD, digital TV set-top box.
6. according to claim 1,2, the 3 described products of realizing by technical solution of the present invention, it is characterized in that this product can be used for:
A, public field of video applications:
Promptly in radio and television, video monitoring, internet video, IPIV Application for Field, it is converted to the 3D video signal with the 2D video signal by 3D stereo video signals transducer, the 3D stereoscopic video images signal of telecommunication after the conversion is displayed through the video display terminal place that the Internet, broadcasting and television network are sent to the user, and the user carries out 3D rendering by corresponding special-purpose anaglyph spectacles and watches;
B, individual field of video applications:
Be about to the 2D video image signal of telecommunication that the individual consumer is obtained by the Internet, broadcasting and television network or DVD, VCD, computer video file, convert the 3D video image signal of telecommunication to by 3D stereo video signals transducer, and on individual consumer's video display terminal, show, individual user carries out 3D rendering through corresponding special-purpose anaglyph spectacles and watches.
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