Invention Grant
- Patent Title: Moving picture coding method and moving picture decoding method
- Patent Title (中): 运动图像编码方法和运动图像解码方法
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Application No.: US13488169Application Date: 2012-06-04
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Publication No.: US08477838B2Publication Date: 2013-07-02
- Inventor: Jiuhuai Lu , Tao Chen , Yoshiichiro Kashiwagi , Shinya Kadono , Chong Soon Lim
- Applicant: Jiuhuai Lu , Tao Chen , Yoshiichiro Kashiwagi , Shinya Kadono , Chong Soon Lim
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Main IPC: H04N7/26
- IPC: H04N7/26 ; H04N11/04 ; H04N5/38

Abstract:
A coding method for coding a picture in a moving picture with a processor configured to code, on a block-by-basis, each picture in the moving picture, to generate a coded stream. The processor transforms each picture into coefficients representing spatial frequency components and quantizes the coefficients with a quantization matrix. Identification information identifying the quantization matrix is provided in the coded stream in predetermined units to reduce the amount of data to be coded. The processor is configured to use a coded quantization matrix for a chroma component rather than a default quantization matrix.
Public/Granted literature
- US20120243603A1 MOVING PICTURE CODING METHOD AND MOVING PICTURE DECODING METHOD Public/Granted day:2012-09-27
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