Invention Grant
- Patent Title: Methods and apparatus for transform selection in video encoding and decoding
- Patent Title (中): 视频编码和解码中变换选择的方法和装置
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Application No.: US13138287Application Date: 2009-10-21
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Publication No.: US09049443B2Publication Date: 2015-06-02
- Inventor: Joel Sole , Peng Yin , Yunfei Zheng , Cristina Gomila
- Applicant: Joel Sole , Peng Yin , Yunfei Zheng , Cristina Gomila
- Applicant Address: FR Boulogne-Billancourt
- Assignee: THOMSON LICENSING
- Current Assignee: THOMSON LICENSING
- Current Assignee Address: FR Boulogne-Billancourt
- Agent Robert D. Shedd; Ronald J. Kolczynski
- International Application: PCT/US2009/005730 WO 20091021
- International Announcement: WO2010/087808 WO 20100805
- Main IPC: H04N7/12
- IPC: H04N7/12 ; H04N11/02 ; H04N19/137 ; H04N19/196 ; H04N19/159 ; H04N19/176 ; H04N19/119 ; H04N19/147 ; H04N19/46 ; H04N19/122 ; H04N19/61 ; H04N19/463 ; H04N19/136 ; H04N19/86

Abstract:
There are provided methods and apparatus for transform selection in video coding. An apparatus includes a video encoder for encoding at least a block in a picture by selecting a transform to apply to a residue of the block from a set of two or more available transforms. The transform is selected based on at least one of an inter prediction mode used to predict at least one reference for the block, one or more values corresponding to a motion vector, a value of a residue of one or more previously encoded blocks, a value of prediction data for the block, one or more transform selections of one or more neighboring reconstructed blocks, and a quantization step applied to transform coefficients for the residue of the block.
Public/Granted literature
- US20110293002A1 METHODS AND APPARATUS FOR TRANSFORM SELECTION IN VIDEO ENCODING AND DECODING Public/Granted day:2011-12-01
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