Invention Grant
US09277242B2 Parameter update method for entropy coding and decoding of conversion coefficient level, and entropy coding device and entropy decoding device of conversion coefficient level using same
有权
用于熵编码和转换系数级解码的参数更新方法，以及使用相同的转换系数级别的熵编码装置和熵解码装置
- Patent Title: Parameter update method for entropy coding and decoding of conversion coefficient level, and entropy coding device and entropy decoding device of conversion coefficient level using same
- Patent Title (中): 用于熵编码和转换系数级解码的参数更新方法，以及使用相同的转换系数级别的熵编码装置和熵解码装置
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Application No.: US14514858Application Date: 2014-10-15
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Publication No.: US09277242B2Publication Date: 2016-03-01
- Inventor: Chan-yul Kim , Jae-hyun Kim , Jeong-hoon Park
- Applicant: SAMSUNG ELECTRONICS CO., LTD.
- Applicant Address: KR Suwon-si
- Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee Address: KR Suwon-si
- Agency: Sughrue Mion, PLLC
- Main IPC: H04N19/60
- IPC: H04N19/60 ; H04N19/70 ; H04N19/463 ; H04N19/91 ; H04N19/44 ; H04N19/196 ; H04N19/13 ; H04N19/122 ; H04N19/96 ; H04N19/157 ; H04N19/18
Abstract:
Methods and apparatuses for decoding and encoding video are provided. A method includes obtaining bit strings corresponding to current transformation coefficient level information by arithmetic decoding a bitstream based on a context model that indicates a probability as to whether a bit from a bit string is a one or a zero, updating or maintaining a previous binarization parameter based on a comparison of a predetermined value and a size of a previous transformation coefficient, obtaining the current transformation coefficient level information by performing de-binarization of the bit strings using the determined current binarization parameter, and generating a size of a current transformation coefficient using the current transformation coefficient level information.
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