US 11,838,548 B2
Video coding using mapped transforms and scanning modes
Peisong Chen, San Diego, CA (US); Yunfei Zheng, San Jose, CA (US); Rajan Laxman Joshi, San Diego, CA (US); Muhammed Zeyd Coban, Carlsbad, CA (US); and Marta Karczewicz, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Jul. 5, 2022, as Appl. No. 17/810,725.
Application 17/810,725 is a continuation of application No. 17/072,381, filed on Oct. 16, 2020, granted, now 11,601,678.
Application 17/072,381 is a continuation of application No. 13/336,682, filed on Dec. 23, 2011, granted, now 10,992,958, issued on Apr. 27, 2021.
Claims priority of provisional application 61/428,111, filed on Dec. 29, 2010.
Prior Publication US 2022/0417558 A1, Dec. 29, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/60 (2014.01); H04N 19/46 (2014.01); H04N 19/129 (2014.01); H04N 19/176 (2014.01); H04N 19/159 (2014.01); H04N 19/147 (2014.01); H04N 19/122 (2014.01)
CPC H04N 19/60 (2014.11) [H04N 19/122 (2014.11); H04N 19/129 (2014.11); H04N 19/147 (2014.11); H04N 19/159 (2014.11); H04N 19/176 (2014.11); H04N 19/46 (2014.11)] 22 Claims
OG exemplary drawing
 
1. A method of decoding video data, the method comprising:
receiving encoded video data encoded according to an intra-prediction mode;
entropy decoding the encoded video data to create an array of transform coefficients;
determining a transform from a plurality of transforms based on the intra-prediction mode and a block size of the transform;
determining a scanning mode from a plurality of scanning modes based on a mapping between the transform and the scanning mode, wherein the plurality of scanning modes consists of scanning modes having predefined scanning orders; and
applying the scanning mode to the array of transform coefficients to produce a block of transform coefficients.