Invention Grant
- Patent Title: Video intra-prediction using position-dependent prediction combination for video coding
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Application No.: US15272034Application Date: 2016-09-21
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Publication No.: US10425648B2Publication Date: 2019-09-24
- Inventor: Amir Said , Xin Zhao , Jianle Chen , 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: H04N19/159
- IPC: H04N19/159 ; H04N19/105 ; H04N19/117 ; H04N19/147 ; H04N19/157 ; H04N19/176 ; H04N19/182 ; H04N19/70 ; H04N19/593 ; H04N19/11 ; H04N19/146 ; H04N19/172

Abstract:
Techniques are described to improved video intra prediction using position-dependent prediction combination in video coding. In High Efficiency Video Encoding a set of 35 linear predictors are used for doing intra coding and prediction can be computed from either a nonfiltered or a filtered set of neighboring “reference” pixels, depending on the selected predictor mode and block size. Techniques of this disclosure may use a weighted combination of both the nonfiltered and filtered set of reference pixels to achieve better compression via improved prediction and therefore small residual, enable effective parallel computation of all sets of prediction values, and maintain low complexity via applying filtering only to a set of reference pixels and not to predicted values themselves.
Public/Granted literature
- US20170094285A1 VIDEO INTRA-PREDICTION USING POSITION-DEPENDENT PREDICTION COMBINATION FOR VIDEO CODING Public/Granted day:2017-03-30
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