Invention Grant
- Patent Title: Multi-pass non-separable transforms for video coding
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Application No.: US15432500Application Date: 2017-02-14
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Publication No.: US10448053B2Publication Date: 2019-10-15
- Inventor: Amir Said , Xin Zhao , Marta Karczewicz
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Shumaker & Sieffert, P.A.
- Main IPC: H04N19/00
- IPC: H04N19/00 ; H04N19/61 ; H04N19/70 ; H04N19/60 ; H04N19/42 ; H04N19/176 ; H04N19/182 ; H04N19/184

Abstract:
An example method of decoding video data includes determining, by a video decoder and based on syntax elements in an encoded video bitstream, a plurality of values for a current block of the video data; performing, by the video decoder, a multi-pass non-separable inverse transformation on the plurality of values to derive residual data that represents pixel differences between the current block of the video data and a predictive block of the video data; and reconstructing, by the video decoder, the current block of the video data based on the residual data and the predictive block of the video data. In some examples, performing a pass of the multi-pass non-separable inverse transformation includes performing a plurality of Givens orthogonal transformations.
Public/Granted literature
- US20170238013A1 MULTI-PASS NON-SEPARABLE TRANSFORMS FOR VIDEO CODING Public/Granted day:2017-08-17
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