Invention Grant
- Patent Title: Method and device for decoding image in image coding system
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Application No.: US16465895Application Date: 2016-12-05
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Publication No.: US10764598B2Publication Date: 2020-09-01
- Inventor: Jungdong Seo , Jaehyun Lim
- Applicant: LG ELECTRONICS INC.
- Applicant Address: KR Seoul
- Assignee: LG ELECTRONICS INC.
- Current Assignee: LG ELECTRONICS INC.
- Current Assignee Address: KR Seoul
- Agency: Dentons US LLP
- International Application: PCT/KR2016/014167 WO 20161205
- International Announcement: WO2018/105757 WO 20180614
- Main IPC: H04N11/02
- IPC: H04N11/02 ; H04N19/513 ; H04N19/105 ; H04N19/119 ; H04N19/176 ; H04N19/44 ; H04N19/109 ; H04N19/139 ; H04N19/13 ; H04N19/172 ; H04N19/91

Abstract:
An image decoding method performed by a decoding device according to the present invention comprises the steps of: acquiring information on inter prediction of a target block through a bit stream; deriving motion information of the target block on the basis of the information on inter prediction; deriving a prediction sample by performing inter prediction for the target block on the basis of the motion information; generating a reconstruction block on the basis of the prediction sample; deriving modified motion information of the target block on the basis of the reconstruction block; and updating the motion information of the target block on the basis of the modified motion information. According to the present invention, modified motion information of the target block can be calculated, and the motion information of the target block can be updated on the basis of the modified motion information, so that the overall coding efficiency can be improved.
Public/Granted literature
- US20190297343A1 METHOD AND DEVICE FOR DECODING IMAGE IN IMAGE CODING SYSTEM Public/Granted day:2019-09-26
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