US 11,997,288 B2
Perceptual three-dimensional (3D) video coding based on depth information
Do-Kyoung Kwon, Allen, TX (US); Madhukar Budagavi, Plano, TX (US); and Ming-Jun Chen, Austin, TX (US)
Assigned to Texas Instruments Incorporated, Dallas, TX (US)
Filed by Texas Instruments Incorporated, Dallas, TX (US)
Filed on Jun. 30, 2023, as Appl. No. 18/216,702.
Application 18/216,702 is a continuation of application No. 17/243,623, filed on Apr. 29, 2021, granted, now 11,695,936.
Application 17/243,623 is a continuation of application No. 16/911,638, filed on Jun. 25, 2020, granted, now 11,025,916, issued on Jun. 1, 2021.
Application 16/911,638 is a continuation of application No. 16/562,880, filed on Sep. 6, 2019, granted, now 10,735,743, issued on Aug. 4, 2020.
Application 16/562,880 is a continuation of application No. 16/148,764, filed on Oct. 1, 2018, granted, now 10,455,235, issued on Oct. 22, 2019.
Application 16/148,764 is a continuation of application No. 13/631,841, filed on Sep. 28, 2012, granted, now 10,091,513, issued on Oct. 2, 2018.
Claims priority of provisional application 61/540,578, filed on Sep. 29, 2011.
Prior Publication US 2023/0345010 A1, Oct. 26, 2023
Int. Cl. H04N 19/00 (2014.01); H04N 19/124 (2014.01); H04N 19/142 (2014.01); H04N 19/154 (2014.01); H04N 19/176 (2014.01); H04N 19/597 (2014.01); H04N 13/00 (2018.01)
CPC H04N 19/154 (2014.11) [H04N 19/124 (2014.11); H04N 19/142 (2014.11); H04N 19/176 (2014.11); H04N 19/597 (2014.11); H04N 2013/0081 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
computing a depth quality sensitivity measure for each coding block in a multi-view frame based on a depth map for the multi-view frame;
computing a depth-based perceptual quantization scale for each coding block by at least:
selecting a first quantization scale for a first coding block having a first depth quality sensitivity measure, wherein the first quantization scale is coarser than a base quantization step size; and
selecting a second quantization scale for a second coding block having a second depth quality sensitivity measure, wherein the second depth quality sensitivity measure is higher than the first depth quality sensitivity measure, and wherein the second quantization scale is finer than the base quantization step size;
encoding the first coding block using the first quantization scale; and
encoding the second coding block using the second quantization scale.