CN105049828A - Three-dimensional image control method - Google Patents

Abstract

The invention discloses a three-dimensional image control method which is suitable for a display device. The display device has a plurality of sub-pixels. Furthermore, the display device is defined with a plurality of viewing angles, and each viewing angle corresponds to at least part of the sub-pixels to provide a viewing angle image. In addition, the display device is defined with a plurality of visual areas which are parallel to each other, and each visual area corresponds to one of the visual angles. The three-dimensional image control method comprises the following steps. First, an original matrix is provided. Each element of the original matrix corresponds to the brightness of one sub-pixel in one view image. Then, the original matrix and the correction matrix are operated to generate an output matrix. The display device determines the brightness of one sub-pixel of one visual angle image according to the elements in the output matrix.

Description

3-dimensional image control method

Technical field

The present invention, about a kind of 3-dimensional image control method, particularly looks 3-dimensional image control method about one is naked.

Background technology

In recent years, along with the lifting of quality of the life, Display Technique is progress constantly.From early stage black-and-white TV, color TV, until present high image quality, light and thin type, complanation TV, invariably represent that people pursue more true to nature, more natural image quality.In order to meet the demand to more real image, Display Technique is developed to three-dimensional from two dimension, to provide the visual experience of solid space.The mode of the binocular parallax of stereo display technique many employings is now reached.Therefore people to be allowed to receive stereopsis, images of left and right eyes must be made to receive the image of narrow difference respectively.The Display Technique of 3-dimensional image is broadly divided into spectacle and nakedly looks formula, and wherein, the naked 3-dimensional image Display Technique depending on formula is not because need additionally to wear special eyeglasses, and for the user, convenience is self-evident.

But, naked be showing improvement or progress day by day depending on formula 3-dimensional image Display Technique while, its display quality still has and improves space greatly.Therefore, how to improve existing 3-dimensional image Display Technique, to promote the image quality of 3-dimensional image, then one of problem that should solve for research staff.

Summary of the invention

The invention reside in and a 3-dimensional image control method is provided, to promote the display image quality of 3-dimensional image.

3-dimensional image control method disclosed by the present invention, is applicable to display unit.Display unit has multiple sub-pixel, and these sub-pixels arrange in the mode of multiple row and multiple row.Moreover display unit definition has multiple visual angle, and each visual angle corresponds to the sub-pixel of small part to provide perspective images.In addition, display unit definition has multiple viewing areas parallel to each other, each viewing area correspondence wherein visual angle, and the column direction of viewing area and sub-pixel has an angle.3-dimensional image control method comprises the following steps.First, original matrix is provided.Wherein, the brightness of one of them sub-pixel in each element of original matrix one of them perspective images corresponding.Come again, original matrix and correction matrix are carried out computing, to produce output matrix.Display unit then determines the brightness of one of them sub-pixel of one of them perspective images according to the element in output matrix.

3-dimensional image control method disclosed by the invention described above, can reduce the brightness of sub-pixel, to compensate the impact that its nearby subpixels light leak causes.Therefore, display unit can utilize output matrix to determine each perspective images, and and then provides the display of the 3-dimensional image after optimization.

Above about the explanation of content of the present invention and the explanation of following execution mode be in order to demonstration with explain principle of the present invention, and provide patent claim of the present invention further to explain.

Accompanying drawing explanation

Fig. 1 is by order to illustrate that one embodiment of the invention is suitable for the structural representation of display unit.

Fig. 2 is the flow chart of the 3-dimensional image control method of one embodiment of the invention.

Fig. 3 is the structural representation of another display unit, in order to the 3-dimensional image control method of another embodiment of the present invention to be described.

Fig. 4 is the structural representation of another display unit, in order to the 3-dimensional image control method of further embodiment of this invention to be described.

Fig. 5 is the structural representation of a display unit again, in order to the 3-dimensional image control method of yet another embodiment of the invention to be described.

Fig. 6 is the structural representation of another display unit, in order to the 3-dimensional image control method of further embodiment of this invention to be described.

Wherein, Reference numeral:

1,3,4,5,6 display unit

10,30,40,50,60 sub-pixels

12,32,42,52,62 viewing areas

14 beam splitters

θ, ψ ₁, ψ ₂, ψ ₃, ψ ₄angle

100,300,302,304,400,402,404 sub-pixels

500,502,504,506,508 sub-pixels

601,602,603,604,605 sub-pixels

Embodiment

Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.

Please refer to Fig. 1, by order to illustrate that one embodiment of the invention is suitable for the structural representation of display unit.Display unit 1 has multiple sub-pixel 10, and these sub-pixels 10 arrange in the mode of multiple row and multiple row.And display unit 1 definition has multiple visual angle, each visual angle corresponds to the sub-pixel 10 of small part to provide a perspective images.In practice, multiple beam splitter 14 can be utilized to produce different visual angles, and beam splitter 14 can be column convex lens, only not as limit.In addition, display unit 1 definition has multiple viewing areas 12 parallel to each other, one of them visual angle corresponding, each viewing area 12.Utilize and arranged in an inclined manner by beam splitter 14, the column direction that these viewing areas 12 and sub-pixel 10 can be made to arrange forms an angle theta.

In practice, corresponding relation between sub-pixel 10 and visual angle be determine according to number viewpoints and angle theta, and adjacent sub-pixel 10 belongs to different visual angles usually.Therefore, for the sub-pixel 100 in sub-pixel 10, suppose that it is the corresponding sub-pixel 10 of visual angle for being shown in residing viewing area.Due to the existence of angle theta, except one of them sub-pixel 10 itself, the sub-pixel 10 belonging to other visual angles around it also can fall into viewing area.For N number of visual angle, can represent by following equation.

View1 _perceived＝View1 _display+C ₁×(ViewN _display+View2 _display)

+C ₂×(View(N-1) _display+View3 _display)+...…(1)

View2 _perceived＝View2 _display+C ₁×(View1 _display+View3 _display)

+C ₂×(ViewN _display+View4 _display)+...…(2)

.

.

.

ViewN _perceived＝ViewN _display+C ₁×(View(N-1) _display+View1 _display)

+C ₂×(View(N-2) _display+View2 _display)+...…(3)

Wherein, Viewi _perceivedthe brightness of the sub-pixel 10 at i-th visual angle seen for user, Viewi _displayfor the brightness of the sub-pixel 10 at i-th visual angle of display unit display, Cj then represents the brightness of the sub-pixel 10 at other visual angles except the sub-pixel 10 at i-th visual angle to the influence degree of the brightness of the sub-pixel 10 at i-th visual angle.In practice, Cj can be considered as a weighted value, this weighted value is associated with sub-pixel 10 corresponding in original matrix size shared in the viewing area of correspondence.The mode further aforesaid equation being converted to matrix represents, can obtain following equation.

CV _d＝V _p.......................................................................(4)

$C=\left[\begin{array}{ccccc}1& C_1& C_2& \mathrm{...}& C_1\\ C_1& 1& C_1& C_2& \mathrm{...}\\ \mathrm{...}& C_1& 1& C_1& C_2\\ C_2& \mathrm{...}& C_2& 1& C_2\\ C_1& C_2& \mathrm{...}& C_1& 1\end{array}\right]\mathrm{...}\left(5\right)$

$V_d=\left[\begin{array}{c}View{1}_{display}\\ View{2}_{display}\\ View{3}_{display}\\ .\\ .\\ .\\ {\mathrm{ViewN}}_{display}\end{array}\right]\mathrm{...}\left(6\right)$

$V_p=\left[\begin{array}{c}View{1}_{perceived}\\ View{2}_{perceived}\\ View{3}_{perceived}\\ .\\ .\\ .\\ {\mathrm{ViewN}}_{perceived}\end{array}\right]\mathrm{...}\left(7\right)$

Wherein, C is correction matrix, V _dfor output matrix, V _pfor original matrix.

According to above-mentioned matrix, the element of original matrix corresponds to the brightness of the sub-pixel 10 of at least part of same row.Moreover the diagonal entry of correction matrix is 1, and a result of the cyclic shift to the right of each its lastrow of behavior except the first row.In practice, the inverse matrix of correction matrix can be multiplied by original matrix to produce output matrix.Further, each element of original matrix can be multiplied by respectively a corresponding coefficient and be added, with produce output matrix multiple elements one of them.Wherein above-mentioned coefficient is the element of the inverse matrix of correction matrix, and therefore above-mentioned coefficient system is associated with the weighted value representated by Cj.

Referring to Fig. 1 and Fig. 2, wherein Fig. 2 is the flow chart of the 3-dimensional image control method of the present embodiment.The 3-dimensional image control method of the present embodiment is applicable to display unit 1 as shown in Figure 1, comprises the following steps.First, in step S20, provide original matrix.Wherein, the brightness of one of them sub-pixel 10 in each element of original matrix one of them perspective images corresponding.Come again, in step S22, original matrix and correction matrix are entered column operations, to produce output matrix.Display unit 1 determines the brightness of one of them sub-pixel 10 of one of them perspective images according to the element in output matrix.The computing of above, can reduce the brightness of sub-pixel 10, to compensate the impact that its nearby subpixels 10 light leak causes.Therefore, display unit 1 can utilize output matrix to determine each perspective images, and and then provides the display of the 3-dimensional image after optimization.

Please refer to Fig. 3, is the structural representation of another display unit, in order to the 3-dimensional image control method of another embodiment of the present invention to be described.As shown in Figure 3, display unit 3 comprises multiple sub-pixel 30.Wherein, the sub-pixel 30 of first row and the 4th row is for belonging to red sub-pixel, and the sub-pixel 30 of secondary series and the 5th row is for belonging to green sub-pixels, and the sub-pixel 30 of the 3rd row and the 6th row is for belonging to blue subpixels.The column direction shape that viewing area 32 and sub-pixel 30 arrange has angle ψ ₁, wherein, ψ ₁for tan ^-1(1/6) 9.46 degree, are approximated.The visual angle corresponding to digitized representation sub-pixel 30 that each sub-pixel 30 indicates, for example, indicate corresponding 1st visual angle of sub-pixel 30 of " 1 ", indicate sub-pixel 30 correspondences the 5th visual angle of " 5 ", the present embodiment for totally 5 visual angles, only not as limit.Therefore, the sub-pixel 30 indicating same numbers can form corresponding perspective images.For the 2nd visual angle, suppose sub-pixel 300 by wish display sub-pixel 30, then it has the greatest impact by the light leak of sub-pixel 302 and sub-pixel 304.In like manner for other visual angle, having the greatest impact also by its upper and lower sub-pixel 30.

Therefore, correction matrix, output matrix and original matrix can be described with following equation respectively.

$C=\left[\begin{array}{ccccc}1& C_1& 0& 0& C_1\\ C_1& 1& C_1& 0& \mathrm{...}\\ 0& C_1& 1& C_1& 0\\ 0& 0& C_1& 1& C_1\\ C_1& 0& 0& C_1& 1\end{array}\right]\mathrm{...}\left(8\right)$

$V_d=\left[\begin{array}{c}View{1}_{perceived\_(x,y-4)}\\ View{2}_{perceived\_(x,y-3)}\\ View{3}_{perceived\_(x,y-2)}\\ View{4}_{perceived\_(x,y-1)}\\ View{5}_{perceived\_(x,y)}\end{array}\right]\mathrm{...}\left(9\right)$

$V_p=\left[\begin{array}{c}View{1}_{display\_(x,y-4))}\\ View{2}_{display\_(x,y-3)}\\ View{3}_{display\_(x,y-2)}\\ View{4}_{display\_(x,y-1)}\\ View{5}_{display\_(x,y)}\end{array}\right]\mathrm{...}\left(10\right)$

Wherein, the relative position relation of the sub-pixel 30 at each visual angle is as shown in the subscript of above-mentioned original matrix element and output matrix element.For example, sub-pixel 30 coordinate at the 3rd visual angle is (x, y-2), and the sub-pixel 30 at the 2nd visual angle is positioned at below the sub-pixel 30 at the 3rd visual angle, and therefore its coordinate is (x, y-3).The sub-pixel 30 at the 1st visual angle is positioned at below the sub-pixel 30 at the 2nd visual angle again, and therefore its coordinate is (x, y-4), and sub-pixel 30 coordinate at the 4th visual angle and the 5th visual angle then can be by that analogy.In practice, C ₁can be a value being less than 0.3, only not as limit.Though the present embodiment is with ψ ₁approximating 9.46 degree is example, in practice, works as ψ ₁between 8 degree to 11 degree, influencing each other of the sub-pixel 30 at each visual angle is close with the present embodiment.Therefore the original matrix of the present embodiment, correction matrix and output matrix, be applicable to ψ ₁display unit between 8 degree to 11 degree, art usually know that the knowledgeable suitably can adjust C ₁, to reach optimized object.

Please refer to Fig. 4, is the structural representation of another display unit, in order to the 3-dimensional image control method of further embodiment of this invention to be described.As shown in Figure 4, display unit 4 comprises multiple sub-pixel 40.Wherein, the sub-pixel 40 of first row and the 4th row is for belonging to red sub-pixel, and the sub-pixel 40 of secondary series and the 5th row is for belonging to green sub-pixels, and the sub-pixel 40 of the 3rd row and the 6th row is for belonging to blue subpixels.The column direction shape that viewing area 42 and sub-pixel 40 arrange has angle ψ ₂, wherein, ψ ₂for tan ^-1(1/3) 18.43 degree, are approximated.The visual angle corresponding to digitized representation sub-pixel 40 that each sub-pixel 40 indicates, the present embodiment also for totally 5 visual angles, only not as limit.For the 2nd visual angle, suppose sub-pixel 400 by wish display sub-pixel 40, then it has the greatest impact by the light leak of sub-pixel 402 and sub-pixel 404.In like manner for other visual angle, having the greatest impact also by its upper and lower sub-pixel 40.Moreover the configuration of the present embodiment sub-pixel 40 is identical with the configuration mode of above-described embodiment sub-pixel 30.Therefore, the present embodiment also can be applied as above-mentioned ψ ₁original matrix, correction matrix and output matrix when approximating 9.46 degree.Again due in the present embodiment, each sub-pixel 40 by its upper and lower sub-pixel 40 impact comparatively previous embodiment be low, therefore in practice selected C ₁value also little compared with previous embodiment.Though the present embodiment is with ψ ₂approximating 18.43 degree is example, in practice, works as ψ ₂between 16 degree to 20 degree, influencing each other of the sub-pixel 40 at each visual angle is close with the present embodiment.Therefore the original matrix of the present embodiment, correction matrix and output matrix, be applicable to ψ ₂display unit between 16 degree to 20 degree, art usually know that the knowledgeable suitably can adjust C ₁, to reach optimized object.

Please refer to Fig. 5, is the structural representation of a display unit again, in order to the 3-dimensional image control method of yet another embodiment of the invention to be described.As shown in Figure 5, display unit 5 comprises multiple sub-pixel 50.Wherein, the sub-pixel 50 of first row and the 4th row is for belonging to red sub-pixel, and the sub-pixel 50 of secondary series and the 5th row is for belonging to green sub-pixels, and the sub-pixel 50 of the 3rd row and the 6th row is for belonging to blue subpixels.The column direction shape that viewing area 52 and sub-pixel 50 arrange has angle ψ ₃, wherein, ψ ₃for tan ^-1(1/9) 6.34 degree, are approximated.The visual angle corresponding to digitized representation sub-pixel 50 that each sub-pixel 50 indicates, the present embodiment also for totally 5 visual angles, only not as limit.For the 3rd visual angle, suppose sub-pixel 500 by wish display sub-pixel 50, then it has the greatest impact by the light leak of sub-pixel 502 and sub-pixel 504.Secondly, sub-pixel 500 also affects by the light leak of sub-pixel 506 and sub-pixel 508, precisely because impact is little compared with sub-pixel 502 and sub-pixel 504.In like manner for other visual angle, also by its having the greatest impact of each two sub-pixels 50 up and down.

Therefore, correction matrix, output matrix and original matrix can be described with following equation respectively.

$C=\left[\begin{array}{ccccc}1& C_1& C_2& C_2& C_1\\ C_1& 1& C_1& C_2& C_2\\ C_2& C_1& 1& C_1& C_2\\ C_2& C_2& C_1& 1& C_1\\ C_1& C_2& C_2& C_1& 1\end{array}\right]\mathrm{...}\left(11\right)$

$V_d=\left[\begin{array}{c}View{1}_{perceived\_(x,y-4)}\\ View{2}_{perceived\_(x,y-3)}\\ View{3}_{perceived\_(x,y-2)}\\ View{4}_{perceived\_(x,y-1)}\\ View{5}_{perceived\_(x,y)}\end{array}\right]\mathrm{...}\left(12\right)$

$V_p=\left[\begin{array}{c}View{1}_{display\_(x,y-4))}\\ View{2}_{display\_(x,y-3)}\\ View{3}_{display\_(x,y-2)}\\ View{4}_{display\_(x,y-1)}\\ View{5}_{display\_(x,y)}\end{array}\right]\mathrm{...}\left(13\right)$

Wherein, the relative position relation of the sub-pixel 50 at each visual angle is as shown in the subscript of above-mentioned original matrix element and output matrix element.Moreover, due to sub-pixel 50 having the greatest impact by its upper and lower two sub-pixels 50, thus in practice C ₁be greater than C ₂.Though the present embodiment is with ψ ₃approximating 6.34 degree is example, in practice, works as ψ ₃between 5 degree to 8 degree, influencing each other of the sub-pixel 50 at each visual angle is close with the present embodiment.Therefore the original matrix of the present embodiment, correction matrix and output matrix, be applicable to ψ ₃display unit between 5 degree to 8 degree, art usually know that the knowledgeable suitably can adjust C ₁with C ₂, to reach optimized object.

Please refer to Fig. 6, is the structural representation of another display unit, in order to the 3-dimensional image control method of further embodiment of this invention to be described.As shown in Figure 6, display unit 6 comprises multiple sub-pixel 60.Wherein, the sub-pixel 60 of first row, the 4th row, the 7th row and the tenth row is for belonging to red sub-pixel, the sub-pixel 60 of secondary series, the 5th row and the 8th row is for belonging to green sub-pixels, and the sub-pixel 60 of the 3rd row, the 6th row and the 9th row is for belonging to blue subpixels.The column direction shape that viewing area 62 and sub-pixel 60 arrange has angle ψ ₄, ψ ₄for tan ^-1(2/3) 33.69 degree, are approximated.The visual angle corresponding to digitized representation sub-pixel 60 that each sub-pixel 60 indicates, the present embodiment also for totally 5 visual angles, only not as limit.For the 2nd visual angle, suppose sub-pixel 602 by the sub-pixel 60 of wish display, in practice, contiguous homochromy sub-pixel 60 can be selected as the foundation corrected, only not as limit.Such as, contiguous homochromy sub-pixel 601 and sub-pixel 603 can be selected as the foundation corrected.Again for the 3rd visual angle, suppose sub-pixel 603 by the sub-pixel 60 of wish display, then can select contiguous homochromy sub-pixel 602 and sub-pixel 604 as the foundation corrected, all the other visual angles can be by that analogy.

Therefore, correction matrix, output matrix and original matrix can be described with following equation respectively.

$\begin{array}{c}C=\left[\begin{array}{ccccc}1& C_1& 0& 0& C_1\\ C_1& 1& C_1& 0& 0\\ 0& C_1& 1& C_1& 0\\ 0& 0& C_1& 1& C_1\\ C_1& 0& 0& C_1& 1\end{array}\right]\mathrm{...}\left(14\right)\\ V_d=\left[\begin{array}{c}View{1}_{perceived\_(x+1,y-3)}\\ View{2}_{perceived\_(x,y-1)}\\ View{3}_{perceived\_(x+1,y-2)}\\ View{4}_{perceived\_(x,y)}\\ View{5}_{perceived\_(x,y-(x+1,y-1)}\end{array}\right]\mathrm{...}\left(15\right)\end{array}$

$V_p=\left[\begin{array}{c}View{1}_{display\_(x+1,y-3)}\\ View{2}_{display\_(x,y-1)}\\ View{3}_{display\_(x+1,y-2)}\\ View{4}_{display\_(x,y)}\\ View{5}_{display\_(x+1,y-1)}\end{array}\right]\mathrm{...}\left(16\right)$

Wherein, the relative position relation of the sub-pixel 60 at each visual angle is as shown in the subscript of above-mentioned original matrix element and output matrix element.Though the present embodiment is with ψ ₄approximating 33.69 degree is example, in practice, works as ψ ₄between 32 degree to 35 degree, influencing each other of the sub-pixel 60 at each visual angle is close with the present embodiment.Therefore the original matrix of the present embodiment, correction matrix and output matrix, be applicable to ψ ₄display unit between 32 degree to 35 degree, art usually know that the knowledgeable suitably can adjust C ₁, to reach optimized object.

In sum, according to the configuration of three-dimensional image display apparatus sub-pixel and the corresponding relation with visual angle thereof, original matrix, correction matrix that definable is suitable, and then produce output matrix.By this, the brightness of sub-pixel can be reduced, to compensate the impact that its nearby subpixels light leak causes, improve the problem of image fog, promote image quality.Therefore, display unit can utilize output matrix to determine each perspective images, shows to provide the 3-dimensional image of optimization.

Although embodiments of the invention disclose as mentioned above; so and be not used to limit the present invention; anyly have the knack of relevant art; without departing from the spirit and scope of the present invention; such as work as according to shape, structure, feature and the quantity described in the present patent application scope and can do a little change, therefore scope of patent protection of the present invention must be as the criterion depending on the claim person of defining appended by this specification.

Claims (10)

1. a 3-dimensional image control method, it is characterized in that, be applicable to a display unit, this display unit has multiple sub-pixel, those sub-pixels arrange in the mode of multiple row and multiple row, the definition of this display unit has multiple visual angle, each this visual angle corresponds to those sub-pixels of small part to provide a perspective images, the definition of this display unit has multiple viewing areas parallel to each other, each this those visual angles corresponding, viewing area one of them, one column direction of those viewing areas and those sub-pixels has an angle, and this 3-dimensional image control method comprises:

There is provided an original matrix, one of them one of them brightness of those sub-pixels of each element those perspective images corresponding of this original matrix; And

This original matrix and a correction matrix are carried out computing, and to produce an output matrix, this display unit determines one of them one of them the brightness of those sub-pixels of those perspective images according to the element in this output matrix.

2. 3-dimensional image control method according to claim 1, is characterized in that, this original matrix is associated with the relative position in each this viewing area between those sub-pixels.

3. 3-dimensional image control method according to claim 1, is characterized in that, the corresponding color of each this sub-pixel, those elements of this original matrix correspond to same color.

4. 3-dimensional image control method according to claim 1, is characterized in that, each element of this correction matrix is a weighted value, and this weighted value is associated with one of them area in those viewing areas shared by one of them of those elements of this original matrix.

5. 3-dimensional image control method according to claim 4, is characterized in that, in the step producing this output matrix, comprises and the inverse matrix of this correction matrix is multiplied by this original matrix to produce this output matrix.

6. 3-dimensional image control method according to claim 5, it is characterized in that, in the step producing this output matrix, comprise: each this element of this original matrix is multiplied by respectively a corresponding coefficient and be added with the multiple elements producing this output matrix one of them, wherein those coefficients are associated with those weighted values.

7. 3-dimensional image control method according to claim 5, it is characterized in that, those elements of this original matrix correspond to the brightness of those sub-pixels of at least part of same row, one first element of the first row of this correction matrix is 1, one second element of this first row is one first weighted value, one last element of this first row is this first weighted value, remaining those element of this first row are 0, this first weighted value is less than 1 and is greater than 0, this correction matrix each behavior except this first row the cyclic shift to the right of this row on it a result.

8. 3-dimensional image control method according to claim 7, is characterized in that, this angle is between 8 degree to 11 degree or between 16 degree to 20 degree.

9. 3-dimensional image control method according to claim 5, it is characterized in that, those elements of this original matrix correspond to the brightness of those sub-pixels of at least part of same row, one first element of the first row of this correction matrix is 1, one second element of this first row is one first weighted value, one element of this first row is one second weighted value, one last element of this first row is this first weighted value, this element last of this last element of this first row is this second weighted value, remaining those element of this first row are 0, this first weighted value and this second weighted value are less than 1 and are greater than 0, this first weighted value is greater than this second weighted value, this correction matrix each behavior except this first row the cyclic shift to the right of this row on it a result.

10. 3-dimensional image control method according to claim 9, is characterized in that, this angle is between 5 degree to 8 degree.