Method, apparatus and system for reducing crosstalk of auto stereoscopic displays
View Patent ↗The disclosure describes a method, apparatus and system for reducing crosstalk of auto-stereoscopic displays using higher resolution panels. In such panels, a fraction of a total number of views is generated by sending a same signal on a number of adjacent views. A signal processing correcting function is applied to the fractioned views to reduce crosstalk.
1. A method for reducing crosstalk of a display, said display being adapted to display a first number of views, comprising:
reducing said first number of views to a second number of views less than said first number of views by applying a second number of image signals to the views of the first number of views, wherein each of the image signals of the second number of image signals is applied to groups of adjacent views of said first number of views, each of said groups of adjacent views including a respective group of adjacent pixels;
for at least one group of adjacent pixels, adjusting a luminance profile of said pixels of said at least one group by reducing a luminance of pixels located at a periphery on each side of said at least one group with respect to a luminance of other pixels of said group; and
reproducing images on the display using the second number of views with said adjusted luminance profile.
2. The method according to claim 1 , wherein the level of luminance of the pixels located at the periphery of said groups of adjacent pixels is a percentage of the level of luminance of the other pixels of said groups of adjacent pixels.
3. The method according to claim 1 , wherein the level of luminance of the pixels located at the periphery of said groups of adjacent pixels is equal to 0.
4. The method according to claim 1 , wherein the luminance is reduced by applying a correction function to said groups of adjacent pixels.
5. The method according to claim 4 , wherein said second number and said correction function are determined with a trial and error process.
6. The method according to claim 1 , wherein said second number is determined according to characteristics of said display.
7. An apparatus configured to reduce crosstalk of a display, said display being adapted to display a first number of views, said apparatus comprising a memory associated with a processor configured to:
reduce said first number of views to a second number of views less than said first number of views by applying a second number of image signals to the views of the first number of views, wherein each of the image signals of the second number of image signals is applied to groups of adjacent views of said first number of views, each of said groups of adjacent views including a respective group of adjacent pixels;
for at least one group of adjacent pixels, adjust a luminance profile of said pixels of said at least one group by reducing a luminance of pixels located at a periphery on each side of said at least one group with respect to a luminance of other pixels of said group; and
reproduce images on the display using the second number of views with said adjusted luminance profile.
8. The apparatus according to claim 7 , wherein the level of luminance of the pixels located at the periphery of said groups of adjacent pixels is a percentage of the level of luminance of the other pixels of said groups of adjacent pixels.
9. The apparatus according to claim 7 , wherein the level of luminance of the pixels located at the periphery of said groups of adjacent pixels is equal to 0.
10. The apparatus according to claim 7 , wherein the processor is configured to reduce the luminance by applying a correction function to said groups of adjacent pixels.
11. The apparatus according to claim 10 , wherein said processor is further configured to determine said second number and said correction function with a trial and error process.
12. The apparatus according to claim 7 , wherein said second number is determined according to characteristics of said display.