CN1068756C - Stereo television system - Google Patents
Stereo television system Download PDFInfo
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- CN1068756C CN1068756C CN93118409A CN93118409A CN1068756C CN 1068756 C CN1068756 C CN 1068756C CN 93118409 A CN93118409 A CN 93118409A CN 93118409 A CN93118409 A CN 93118409A CN 1068756 C CN1068756 C CN 1068756C
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Abstract
An interlacing time division complementary color image dividing stereoscopic television system relates to a stereoscopic television system which is composed of a stereo camera, an interlacing time division circuit, an adder, a demoding circuit, a primary color interlacing time division circuit, a coding circuit, a common color television and complementary color light filtering glasses. When interlacing time division complementary color image dividing stereoscopic television signals obtained by combining an interlacing time division image dividing method and a complementary color image dividing method are showed by the common color television, stereoscopic television images can be watched by the corresponding complementary color light filtering glasses. The present invention overcomes the ' color contamination interference ' of the complementary color image dividing method and a ' flicker ' phenomenon of an odd field and an even field time division image dividing method, and the present invention has stable images and good stereo effect and can alleviate visual fatigue.
Description
The present invention relates to a kind of stereo-television system.
At present, the existing multiple standard of practical stereo-television system, resemble stereo-television system and time-division as the complementary colours branch and divide and resemble stereo-television system, the time-division divides and resembles stereo-television system and have again by the parity field time-division and divide the stereo-television system of elephant and adopt a frequency multiplication time-division to divide the stereo-television system of elephant.Parity field time-division branch resembles stereo-television system and mainly comprises stereo camera, time division circuit, adder and liquid crystal glasses and driver, and stereo camera then is made up of two left gamma cameras and right gamma camera separated by a distance.Left side gamma camera and right gamma camera utilize the two-way TV image signal of genlock device horizontal synchronization shooting after the time division circuit timesharing, keep the strange field signal of left gamma camera shooting and the even field signal that right gamma camera is taken.Strange field signal of left gamma camera that adder will remain and right gamma camera idol field signal carry out the time addition and promptly obtain the time-division three-dimensional television signal, utilize video recording apparatus record time-division three-dimensional television signal can obtain time-division stereoscopic TV videotape.Watch the time-division during three-dimensional tv images, should earlier the parity field synchronizing signal of time-division three-dimensional television signal be decomposed out and pass through the switch of driver control liquid crystal glasses sheet, with guarantee that when showing the left eye image on the television screen LCD panel before the left eye is opened, LCD panel before the right eye turn-offs, the LCD panel when showing the right eye image on the television screen before the right eye is opened, the LCD panel shutoff before the left eye.Resemble the critical flicker frequency (50Hz) that the TV image field frequency that every eye is experienced is lower than human eye owing to adopt the parity field time-division to divide, therefore watch the parity field time-division scintillation will occur during three-dimensional tv images, when especially the image on the video screen was bright, flickering was more obvious.In order to overcome the image flicker phenomenon, occurred adopting a frequency multiplication time-division to divide and resembled stereo-television system, but its cost is very expensive.In addition, no matter be to divide the stereo-television system of elephant or adopt a frequency multiplication time-division to divide the stereo-television system of elephant by the parity field time-division, all must adopt liquid crystal glasses and driver when watching three-dimensional tv images, not only watch inconvenience, liquid crystal glasses is also very expensive.Therefore, the time-division stereo-television system has been subjected to very big restriction in practicality.The complementary colours branch resembles stereo-television system and comprises that mainly stereo camera, decoding circuit, complementary colours branch resemble circuit, coding circuit and es.The TV image signal that decoding circuit is taken stereo camera is decomposed into R, G, B three primary colors vision signal, the three primary colors vision signal is formed complementary colours arbitrarily to also being resembled circuit by look to sending into the complementary colours branch mutually, after the complementary colours branch resembles the circuit gating, obtain the complementary colours branch and resemble the stereoscopic TV primary colour signal.Obtain the complementary colours branch behind the encoded circuit code and resemble three-dimensional television signal, utilize video recording apparatus record complementary colours branch to resemble three-dimensional television signal and can obtain the complementary colours branch and resemble the stereoscopic TV videotape.The great advantage that the complementary colours branch resembles stereo-television system is, when watching the complementary colours branch to resemble three-dimensional tv images, needn't adopt liquid crystal glasses and driver, only needs to adopt a corresponding es can watch stereo image.Therefore, the complementary colours branch resembles stereo-television system and watches more conveniently, and es is also than the liquid crystal glasses considerably cheaper.But because the restriction of frequency band, complementary colours almost invariably will produce " colour contamination interference " to picture intelligence, is promptly comprising another road picture intelligence composition in the picture intelligence of a certain road of complementary colours centering.When " colour contamination interference " is serious, the stereopsis effect of TV image will be influenced.
Purpose of the present invention promptly is the branch method of resembling of stereo-television system is improved, divide the scintillation of elephant and eradicate " the colour contamination interference " that complementary colours is divided elephant to overcome the parity field time-division, make it to utilize es can watch image stability, three-dimensional tv images that stereoeffect is good.
To achieve these goals, the present invention changes the parity field time-division and divides to resemble to the interlacing time-division and divide and resemble, and the interlacing time-division divided to resemble to resemble with the complementary colours branch interosculate, utilize stereo camera earlier, interlacing time division circuit and adder obtain interlacing time-division three-dimensional television signal, utilize then by decoding circuit, the interlacing division complementary look branch that primary colours interlacing time division circuit and coding circuit are formed resembles change-over circuit interlacing time-division three-dimensional television signal is converted to the stereo television signal, utilizes video recording apparatus record stereo television signal can obtain interlacing time-division stereoscopic TV videotape.Owing to adopt the interlacing time-division to divide when resembling, its odd-numbered line frequency and even number line frequency all are much higher than the critical flicker frequency of human eye, thereby interlacing time-division branch resembles the image flicker phenomenon that can overcome parity field time-division branch elephant, because the stereo television signal is separated in time, thereby fundamentally eliminated general complementary colours branch and resembled method intrinsic " colour contamination interference " again.Therefore, only need utilize corresponding es can watch image stability, three-dimensional tv images that stereoeffect is good.Be described in further detail below in conjunction with the technical characterictic of specific embodiment stereo television system of the present invention.
Accompanying drawing 1 is the block diagram of stereo television system of the present invention.
With reference to the accompanying drawings 1, interlacing division complementary look color separation stereo-television system of the present invention mainly is made up of stereo camera, interlacing time division circuit, adder, decoding circuit, primary colours interlacing time division circuit, coding circuit, ordinary color tv set and es.Stereo camera is made up of two left gamma camera L and right gamma camera R separated by a distance, but utilize genlock device Syn horizontal synchronization to take the synchronous image signal that two-way has certain parallax, this two-way synchronous image signal is after the timesharing of interlacing time division circuit, begin to keep odd-numbered line vision signal and the even number line vision signal of right gamma camera shooting, the even number line vision signal that filtering left side gamma camera is taken and the odd-numbered line vision signal of right gamma camera shooting that left gamma camera is taken from the odd field first trip.The even number line vision signal that left gamma camera odd-numbered line vision signal that adder will remain and right gamma camera are taken is carried out the time addition, obtain interlacing time-division three-dimensional television signal, utilize video recording apparatus record interlacing time-division three-dimensional television signal, can obtain interlacing time-division stereoscopic TV videotape D
1For interlacing time-division three-dimensional television signal is converted to the stereo television signal, earlier interlacing time-division three-dimensional television signal is solved R through decoding circuit, G, the sub video signal during interlacing of B three primary colors, sub video signal is formed complementary colours arbitrarily to (R/G for example during with the three primary colors interlacing, B, G/B, R, or B/R, the G complementary colours to) and with complementary colours to sending into primary colours interlacing time division circuit, primary colours interlacing time division circuit is under the control of odd-numbered line synchronizing signal and even number line synchronizing signal, the respectively a certain road signal of gating complementary colours centering and another road signal of filtering complementary colours centering, thus the stereo television primary colour signal obtained.Coding circuit promptly obtains the stereo television signal after the stereo television primary colour signal is encoded.Utilize video recording apparatus record stereo television signal, can obtain stereo television videotape D
2Select for use different complementary colours to the time viewing effect be different, the color G/B that use, the R complementary colours be to can giving eyes with the logical and spectrum of light of balance comparatively, to weaken visual fatigue, the enhancing color saturation has remarkable advantages, therefore G/B is preferentially selected in suggestion for use, and the R complementary colours is right.
" branch resembles three-dimensional television signal, can obtain stereo television video tape D2.
Select for use different complementary colours to the time viewing effect be different, adopt G/B, the R complementary colours be to can giving the comparatively logical and spectrum of light of balance of eyes, to weakening visual fatigue, strengthening color saturation and have remarkable advantages, therefore the present invention advises preferentially selecting for use G/B, and the R complementary colours is right.”
Adopt the interlacing time-division to divide when resembling, its odd-numbered line frequency and even number line frequency all are higher than the critical flicker frequency of human eye far away, so dividing to resemble, the interlacing time-division can thoroughly eradicate the image flicker phenomenon, because the stereo television image is separated in time, therefore can fundamentally eliminate general complementary colours branch resembles intrinsic " colour contamination interference " again.Therefore,, only need utilize ordinary color tv set and corresponding es, can watch image stability, three-dimensional tv images that stereoeffect is good for stereo television system of the present invention.
When stereoscopic TV broadcasting and rating, the present invention is flexible configuration as the case may be.
(1) TV station directly broadcasts stereo television program (videotape D
2), observer is utilized video recording apparatus record stereo television program, or utilizes ordinary color tv set and es direct viewing stereo television image.
(2) the interlacing division complementary look branch among the present invention is resembled the additional conversion electricity equipment of circuit as video recording apparatus or ordinary color tv set, TV station only broadcasts interlacing time-division three-dimensional television (videotape D
1), the observer utilization has the video recording apparatus record interlacing time-division three-dimensional television of additional conversion equipment, or utilizes ordinary color tv set and the corresponding es direct viewing interlacing time-division three-dimensional tv images that has additional conversion equipment.
(3) theoretically, stereo television system and liquid crystal glasses are compatible, but require liquid crystal glasses to respond fast.Regrettably, still be in the development stage at present less than the fast response liquid crystal glasses of 3 μ S, little 5 μ S of turn-off time switching time.In case this fast response liquid crystal glasses are succeeded in developing, television station broadcast interlacing time-division three-dimensional television (videotape D
1) or stereo television program (videotape D
2) time, observer all can utilize ordinary color tv set and fast response liquid crystal glasses and driver to watch three-dimensional tv images.
Stereo television system flicker free phenomenon of the present invention and colour contamination are disturbed, and utilize ordinary color tv set and es can watch image stability, three-dimensional tv images that stereoeffect is good, and can weaken visual fatigue greatly.Therefore, the present invention both had been applicable to stereoscopic TV broadcasting, was applicable to that also having the observer that recording playback resembles equipment views and admires three-dimensional television.
Claims (2)
1, a kind of stereo television system, comprise two left video cameras separated by a distance and right video camera by stereo camera time division circuit and adder stereo camera, a left side video camera and right video camera utilize two-way synchronous image signal that the horizontal synchronization of genlock device takes to obtain the time-division three-dimensional television signal after time division circuit timesharing and adder carry out addition, utilize video recording apparatus record time-division three-dimensional television signal can obtain time-division stereoscopic TV video tape, the invention is characterized in that described time division circuit is the interlacing time division circuit, have by decoding circuit after the adder, the interlacing division complementary look branch that primary colours interlacing time division circuit and coding circuit are formed resembles change-over circuit; The two-way synchronous images that left side video camera and right video camera are taken is after the timesharing of interlacing time division circuit, first trip from each odd field begins the odd-numbered line vision signal of the right video camera shooting of filtering and the even number line vision signal that left video camera is taken, keep the odd-numbered line vision signal of left video camera shooting and the even number line vision signal that right video camera is taken, adder will remain left video camera odd-numbered line vision signal and right video camera even number line vision signal is carried out the time addition, obtain interlacing time-division three-dimensional television signal, utilize video recording apparatus record interlacing time-division three-dimensional television signal can obtain interlacing time-division stereoscopic TV video tape, the interlacing time-division three-dimensional television signal that is recorded on the video tape solves R by decoding circuit, G, the sub video signal during interlacing of B three primary colors, during with the three primary colors interlacing sub video signal form arbitrarily complementary colours to and send into primary colours interlacing time division circuit, primary colours interlacing time division circuit begins a certain road signal of gating complementary colours centering respectively and another road signal of filtering complementary colours centering from the odd field first trip under the control of strange line synchronizing signal and even line synchronizing signal, obtain the stereo television primary colour signal, this stereo television primary colour signal promptly becomes the stereo television signal after being encoded by coding circuit, utilize video recording apparatus record stereo television signal can obtain the stereo television video tape, can utilize corresponding es to watch three-dimensional television image when showing by the ordinary color tv set screen.
2, according to claim 1, stereo television system is characterized in that the described complementary colours of being made up of three primary colors R, G, B is right to being G/R, B complementary colours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93118409A CN1068756C (en) | 1993-10-08 | 1993-10-08 | Stereo television system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93118409A CN1068756C (en) | 1993-10-08 | 1993-10-08 | Stereo television system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1101480A CN1101480A (en) | 1995-04-12 |
| CN1068756C true CN1068756C (en) | 2001-07-18 |
Family
ID=4992455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93118409A Expired - Fee Related CN1068756C (en) | 1993-10-08 | 1993-10-08 | Stereo television system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1068756C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101651810B (en) * | 2009-09-22 | 2011-01-05 | 西安交通大学 | Device and method for processing interlaced line-crossing stereoscopic composite video signals |
| CN102638701A (en) * | 2011-02-15 | 2012-08-15 | 瑞昱半导体股份有限公司 | Display, image processing device and image processing method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4641178A (en) * | 1983-08-12 | 1987-02-03 | Brightad Limited | Method and apparatus for producing stereoscopic images |
| CN1060004A (en) * | 1990-09-12 | 1992-04-01 | 刘治平 | A kind of stereo display system for TV |
-
1993
- 1993-10-08 CN CN93118409A patent/CN1068756C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4641178A (en) * | 1983-08-12 | 1987-02-03 | Brightad Limited | Method and apparatus for producing stereoscopic images |
| CN1060004A (en) * | 1990-09-12 | 1992-04-01 | 刘治平 | A kind of stereo display system for TV |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1101480A (en) | 1995-04-12 |
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
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| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |