Invention Application
- Patent Title: METHODS AND APPARATUSES FOR ENCODING AND DECODING VIDEO USING SIGNAL DEPENDENT ADAPTIVE QUANTIZATION
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Application No.: US16086512Application Date: 2017-03-23
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Publication No.: US20190075293A1Publication Date: 2019-03-07
- Inventor: Chong Soon LIM , Takahiro NISHI , Tadamasa TOMA
- Applicant: Panasonic Intellectual Property Management co., Ltd.
- International Application: PCT/JP2017/011677 WO 20170323
- Main IPC: H04N19/124
- IPC: H04N19/124 ; H04N19/18 ; H04N19/61 ; H04N19/91 ; H04N19/159
Abstract:
The encoding method includes: inverse-quantizing one or more first transform coefficients quantized; deriving a quantization parameter based on the one or more first transform coefficients inverse-quantized; and inverse-quantizing a second transform coefficient quantized, based on the derived quantization parameter.
Public/Granted literature
- US10939105B2 Methods and apparatuses for encoding and decoding video using signal dependent adaptive quantization Public/Granted day:2021-03-02
Information query
