Region Based Asymmetric Coding for 3D Video Compression
Video data that represents two or more views is coded. The regions of the views are asymmetrically processed according to different coding patterns. Techniques that impose asymmetry at the region level, but at the same time may consider overall/average symmetry or significantly reduced asymmetry at the picture/view level are presented.
1 . A method for processing video data, comprising:
providing video data representing a first view and a second view, the first view and the second view, each view comprising a plurality of regions; and
asymmetrically processing the regions of the first view according to a first view processing pattern and asymmetrically processing the regions of the second view according to a second view processing pattern,
wherein the first view processing pattern is different from the second view processing pattern.
2 . The method as recited in claim 1 , wherein the step of asymmetrically processing the regions of the first view and the second view comprises the step of asymmetrically pre-filtering the regions of the first view and the second view.
3 . The method as recited in claim 1 , wherein the step of asymmetrically processing the regions of the first view and the second view comprises the step of asymmetrically coding the regions of the first view and the second view.
4 . The method as recited in claim 3 , wherein the step of asymmetrically coding the regions of the first view and the regions of the second view comprises the step of varying a coding parameter from region to region of the first view and varying a coding parameters from region to region of the second view.
5 . The method as recited in claim 4 , wherein the coding parameter includes one or more of a quantization parameter, a coding mode, quantization matrices, quantization rounding, quantization thresholding or application of different Lagrangian parameters.
6 . The method as recited in claim 5 , wherein the asymmetrical coding of the first view according to the first view coding pattern is balanced with respect to the asymmetrical cording of the second view according to the second coding pattern to minimize quality asymmetry.
7 . The method according to claim 1 , wherein the first view processing pattern is balanced with respect to the second view processing pattern to minimize quality asymmetry.
8 . The method according to claim 1 , wherein each region is one or more macroblock rows of the first view or second view.
9 . The method according to claim 1 , wherein the regions are based on object segmentation.
10 . The method according to claim 1 , wherein each region is a depth region.
11 . A method for processing video data comprised of a plurality of frames each frame represented according to a first view and a second view, each view comprising a plurality of regions, comprising:
for each frame, evaluating a first view processing pattern and a second view processing pattern;
for each frame, asymmetrically processing the regions of the first view according to a first view processing pattern and asymmetrically processing the regions of the second view according to a second view processing pattern,
wherein, for each frame, the first view processing pattern is different from the second view processing pattern.
12 . A method for encoding video data, comprising:
providing video data representing a first view and a second view, the first view and the second view, each view comprising a plurality of color components; and
asymmetrically encoding the color components of the first view according to a first view encoding pattern and asymmetrically encoding the color components of the second view according to a second view encoding pattern,
wherein the first view encoding pattern is different from the second view encoding pattern.
13 . A system, comprising: means for performing a method as recited in claim 1 .
14 . An apparatus, comprising:
a processor; and
a computer readable storage medium, comprising encoded instructions that are tangibly coded therewith, which when executed by the processor, cause, control, program or configure the processor to perform a method as recited in claim 1 .
15 . A computer readable storage medium comprising encoded instructions that are tangibly coded therewith, which when executed by a processor, cause, control, program or configure the processor to perform, cause, or control a method as recited in claim 1 .