CN103235416A - Method for converting color separation 3D into polarization 3D and compatible dual-lens projection system thereof - Google Patents
Method for converting color separation 3D into polarization 3D and compatible dual-lens projection system thereof Download PDFInfo
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Abstract
The method for converting color separation 3D into polarization 3D and the compatible double-lens projection system thereof comprise the following steps: the stereoscopic image of the 3D film source is synthesized by the first color separation image and the second color separation image; carrying out polarization processing on optical signals projected by the two lenses; when receiving image signals, a receiving end carries out corresponding polarization processing, and the two paths of image signals are respectively received by the left eye and the right eye of a viewer and then synthesized into a three-dimensional image in the brain; the two lenses are used for projecting the two paths of images respectively; a metal screen; and the left lens and the right lens of the polarized glasses are respectively in the horizontal polarization direction and the vertical polarization direction.
Description
Technical field
The present invention relates to a kind of twin-lens optical projection system, can compatible fully various color separation 3D film sources.
Background technology
One, 3D shadow casting technique
3D is the abbreviation of English Three-Dimensional, also claims three-dimensional, is based on the digitized stereo technology of computer/internet.3D shadow casting technique is the mode that adopts projection, with two overlapped images by projector projects to screen, make the beholder can experience the depth feelings of image.Project to two width of cloth images in the screen, a width of cloth is received by left eye, and another width of cloth is received by right eye, and by two width of cloth different images that right and left eyes receives, synthetic stereo image in brain makes the beholder experience the stereoscopic sensation of picture.To have a cost low because of it in 3D shadow casting technique, and advantages such as large scale are widely used in fields such as film, recreation, education, commercial affairs, mobile phone, and have developed into a kind of mode of people's life, amusement.
Two, color separation 3D film
Three, polarization 3D film
Along with the continuous development of 3D technology, the film source of 3D film is more and more abundanter, but produces a problem thereupon: the 3D Play System is to the compatibility of 3D film source.Though the 3D optical projection system is also along with the development of 3D technology has produced polytype, but a present class 3D optical projection system also only limits to play specific 3D film source, if want to watch the film source of other form, will increase a lot of new equipment, it operates inconvenience, does not occur effective and feasible solution in the practice as yet.
Summary of the invention
The present invention proposes method and the compatible twin-lens optical projection system thereof that a kind of color separation 3D transfers polarization 3D to.
Solution of the present invention is as follows:
(1) stereo-picture of 3D film source is synthesized by first color separated image and second color separated image; Stereo-picture is carried out signal handle, make picture signal be divided into two-way, and respectively by two camera lens projections, first via picture signal only comprises the RGB information that embodies first color separated image, the second tunnel picture signal only comprises the RGB information that embodies second color separated image;
(2) light signal that two camera lenses are projected carries out polarization manipulation, makes that the polarization direction that is projected in the two-way picture signal on the screen is mutually orthogonal;
When (3) receiving end receives picture signal, make corresponding polarization manipulation, the two-way picture signal is received back synthetic stereo image in brain by viewing person's images of left and right eyes respectively.
Above-mentioned steps (2) can be by horizontal polarization direction be set respectively before two camera lenses polaroid and the polaroid of vertical polarization realize; Accordingly, in step (3), viewing person's images of left and right eyes is worn the polarized lenses of horizontal polarization direction and the polarized lenses of vertical polarization respectively.
A kind of compatible twin-lens optical projection system based on the said method design comprises:
Graphics processing unit is used for the stereoscopic image signal and is divided into two paths of signals, and wherein first via picture signal only comprises the RGB information that embodies first color separated image, and the second tunnel picture signal only comprises the RGB information that embodies second color separated image;
Two camera lenses are used for respectively the two-way image being throwed;
Be arranged at the polaroid of the preceding horizontal polarization direction of two camera lenses and the polaroid of vertical polarization respectively;
The metal screen; And
Polarising glass, the left and right eyeglass of this polarising glass is respectively horizontal polarization direction and vertical polarization.
The present invention has the following advantages:
The present invention realizes easy, and strong operability when playing the film source of different-format, need not to increase new hardware device.
Description of drawings
Fig. 1 is the synoptic diagram that red blue 3D film source is play projection process.
Fig. 2 wears the synoptic diagram that polarising glass is watched red blue anaglyph.
Fig. 3 is the synoptic diagram that red green 3D film source is play projection process.
Fig. 4 wears the synoptic diagram that polarising glass is watched red green anaglyph.
Embodiment
Below in conjunction with accompanying drawing, specify the design proposal (principle) that color separation 3D transfers the twin-lens optical projection system of polarization 3D to for example.
1. red blue 3D transfers the twin-lens optical projection system of polarization 3D to
(1) red blue 3D principle
Red rgb value is 255,0,0; The rgb value of cyan is 0,255,255, can preserve the information of piece image like this with redness, with the information that cyan is preserved another width of cloth image, therefore can comprise the information of two width of cloth images with piece image.If first width of cloth image RGB1=R1, G1, B1; Second width of cloth image RGB2=R2, G2, B2, the stereo-picture RGB12=R1 after synthesizing, G2, B2(or RGB21=R2, G1 B1), had both comprised the red R GB=R1 of first width of cloth image, 0,0(or RGB=R2,0,0) comprise the cyan RGB=0 of second width of cloth image again, G2, B2(or RGB=0, G1, B1).
(2) graphics processing unit
Stereo-picture RGB12=R1, G2, B2 is divided into two-way with signal behind graphics processing unit, and by two camera lens projections, a first via output packet contains the image of R1 signal, and G2 and B2 signal are set to 0; The second tunnel output contains the image of G2 and B2 signal, and the R1 signal is set to 0.
(3) polarization stereo display
Place the polaroid of horizontal direction before first camera lens, it is become horizontal polarization light; Second preceding polaroid of placing vertical direction of camera lens becomes orthogonal polarized light with it.When two camera lenses project on the metal screen simultaneously
The constant reflection in polarization direction takes place.When the polarising glass of wearing have horizontal direction (left eye) and vertical direction (right eye) is watched the film that projects on the screen, the image that includes the R1 signal enters left eye by the horizontal polarization sheet, the image that includes G2, B2 signal enters right eye by the vertical polarization sheet, two width of cloth image informations that obtain by right and left eyes have formed a width of cloth stereo-picture RGB12=R1 in brain, G2, B2.
2. red green 3D transfers the twin-lens optical projection system of polarization 3D to
(1) red green 3D principle
Green rgb value is 0,255,0; Pinkish red rgb value is 255,0,255, can preserve the information of piece image like this with green, with pinkish red information of preserving another width of cloth image, therefore can comprise the information of two width of cloth images with piece image.If first width of cloth image RGB1=R1, G1, B1; Second width of cloth image RGB2=R2, G2, B2, the stereo-picture RGB12=R2 after synthesizing, G1, B2(or RGB21=R1, G2 B1), had both comprised the green RGB=0 of first width of cloth image, G1,0(or RGB=0, G2,0) comprise the pinkish red RGB=R2 of second width of cloth image again, 0, B2(or RGB=R1,0, B1).
(2) graphics processing unit
Stereo-picture RGB12=R2, G1, B2 is divided into two-way with signal behind graphics processing unit, and by two camera lens projections, a first via output packet contains the image of G1 signal, and R2 and B2 signal are set to 0; The second tunnel output contains the image of R2 and B2 signal, and the G1 signal is set to 0.
(3) polarization stereo display
Place the polaroid of horizontal direction before first camera lens, it is become horizontal polarization light; Second preceding polaroid of placing vertical direction of camera lens becomes orthogonal polarized light with it.When two camera lenses project on the metal screen simultaneously
The constant reflection in polarization direction takes place.When the polarising glass of wearing have horizontal direction (left eye) and vertical direction (right eye) is watched the film that projects on the screen, the image that includes the G1 signal enters left eye by the horizontal polarization sheet, the image that includes R2, B2 signal enters right eye by the vertical polarization sheet, two width of cloth image informations that obtain by right and left eyes have formed a width of cloth stereo-picture RGB12=R2 in brain, G1, B2.
Claims (3)
1. color separation 3D transfers the method for polarization 3D to, may further comprise the steps:
(1) stereo-picture of 3D film source is synthesized by first color separated image and second color separated image; Stereo-picture is carried out signal handle, make picture signal be divided into two-way, and respectively by two camera lens projections, first via picture signal only comprises the RGB information that embodies first color separated image, the second tunnel picture signal only comprises the RGB information that embodies second color separated image;
(2) light signal that two camera lenses are projected carries out polarization manipulation, makes that the polarization direction that is projected in the two-way picture signal on the screen is mutually orthogonal;
When (3) receiving end receives picture signal, make corresponding polarization manipulation, the two-way picture signal is received back synthetic stereo image in brain by viewing person's images of left and right eyes respectively.
2. color separation 3D according to claim 1 transfers the method for polarization 3D to, it is characterized in that: step (2) is that the polaroid of horizontal polarization direction and the polaroid of vertical polarization are set respectively before two camera lenses; In step (3), viewing person's images of left and right eyes is worn the polarized lenses of horizontal polarization direction and the polarized lenses of vertical polarization respectively.
3. based on a kind of compatible twin-lens optical projection system of the described method design of claim 1, comprising:
Graphics processing unit is used for the stereoscopic image signal and is divided into two paths of signals, and wherein first via picture signal only comprises the RGB information that embodies first color separated image, and the second tunnel picture signal only comprises the RGB information that embodies second color separated image;
Two camera lenses are used for respectively the two-way image being throwed;
Be arranged at the polaroid of the preceding horizontal polarization direction of two camera lenses and the polaroid of vertical polarization respectively;
The metal screen; And
Polarising glass, the left and right eyeglass of this polarising glass is respectively horizontal polarization direction and vertical polarization.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112450876A (en) * | 2020-11-02 | 2021-03-09 | 吉林师范大学 | Automatic switching device for multiband color separation filter |
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