US 11,956,477 B2
System and method for deblocking HDR content
David M. Baylon, San Diego, CA (US); and Ajay Luthra, San Diego, CA (US)
Assigned to ARRIS Enterprises LLC, Suwanee, GA (US)
Filed by ARRIS Enterprises LLC, Suwanee, GA (US)
Filed on Jan. 19, 2023, as Appl. No. 18/099,003.
Application 18/099,003 is a continuation of application No. 17/684,312, filed on Mar. 1, 2022, granted, now 11,595,698.
Application 17/684,312 is a continuation of application No. 16/370,140, filed on Mar. 29, 2019, granted, now 11,297,351, issued on Apr. 5, 2022.
Claims priority of provisional application 62/650,252, filed on Mar. 29, 2018.
Prior Publication US 2023/0156236 A1, May 18, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/86 (2014.01); H04N 7/015 (2006.01); H04N 19/11 (2014.01); H04N 19/115 (2014.01); H04N 19/117 (2014.01); H04N 19/119 (2014.01); H04N 19/13 (2014.01); H04N 19/139 (2014.01); H04N 19/176 (2014.01); H04N 19/18 (2014.01); H04N 19/186 (2014.01); H04N 19/61 (2014.01); H04N 19/625 (2014.01); H04N 19/82 (2014.01); H04N 19/96 (2014.01)
CPC H04N 19/86 (2014.11) [H04N 7/015 (2013.01); H04N 19/11 (2014.11); H04N 19/115 (2014.11); H04N 19/117 (2014.11); H04N 19/119 (2014.11); H04N 19/13 (2014.11); H04N 19/139 (2014.11); H04N 19/176 (2014.11); H04N 19/18 (2014.11); H04N 19/186 (2014.11); H04N 19/61 (2014.11); H04N 19/625 (2014.11); H04N 19/82 (2014.11); H04N 19/96 (2014.11)] 3 Claims
OG exemplary drawing
 
1. A method of decoding video comprising:
(a) receiving a bitstream of encoded video coded based upon coding tree units of coding units;
(b) decoding said bitstream of said encoded video;
(c) determining a rectangular coding unit that is coded using quantization, coded as a block of luma components and a block of chroma components, having a width and a height, where said width is different from said height, within said encoded bitstream, where said rectangular coding unit is not a prediction unit, and where said rectangular coding unit is not a transform unit;
(d) determining intensity information of pixels associated with a vertical boundary or a horizontal boundary of said rectangular coding unit along the height or along the width of said rectangular coding unit;
(e) applying deblocking filtering to said rectangular coding unit based at least in part on said intensity information associated with said rectangular coding unit, wherein said applied deblocking filtering is based upon filtering parameters β and tC specifying a boundary filtering that is selectively modified based upon an offset of quantization parameters where said offset is based at least in part on said determined intensity information of pixels associated with said boundary;
(f) wherein the greater said offset results in stronger filtering than would have occurred in an absence of such a greater offset;
(g) wherein said offset includes at least three different said offset of quantization parameters;
(h) wherein said deblocking filtering is further based upon clipping; and
(i) wherein said clipping is based upon said quantization parameters.