Invention Grant
- Patent Title: Method and apparatus for encoding/decoding image using quantization parameter, and recording medium storing bitstream
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Application No.: US17256150Application Date: 2019-06-25
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Publication No.: US11277612B2Publication Date: 2022-03-15
- Inventor: Sung Chang Lim , Jung Won Kang , Ha Hyun Lee , Jin Ho Lee , Hui Yong Kim , Yung Lyul Lee , Myung Jun Kim , Nam Uk Kim , Ji Youn Jung , Yang Woo Kim , Jae Gon Kim
- Applicant: Electronics and Telecommunications Research Institute , INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY , INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY
- Applicant Address: KR Daejeon; KR Seoul; KR Goyang-si
- Assignee: Electronics and Telecommunications Research Institute,INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY,INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY
- Current Assignee: Electronics and Telecommunications Research Institute,INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY,INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY
- Current Assignee Address: KR Daejeon; KR Seoul; KR Goyang-si
- Agency: William Park & Associates Ltd
- Priority: KR10-2018-0072999 20180625,KR10-2018-0133494 20181102,KR10-2018-0161324 20181213,KR10-2019-0026208 20190307
- International Application: PCT/KR2019/007675 WO 20190625
- International Announcement: WO2020/004912 WO 20200102
- Main IPC: H04N19/124
- IPC: H04N19/124 ; H04N19/119 ; H04N19/176
Abstract:
There is provided an image encoding/decoding method and apparatus. The image decoding method comprises decoding size information of a quantization group from a bitstream, acquiring a delta quantization parameter of a current block on the basis of the size information of the quantization group, and deriving a quantization parameter for the current block on the basis of the delta quantization parameter.
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