Title:
METHOD AND DEVICE FOR DECODING IMAGE IN IMAGE CODING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/105757
Kind Code:
A1
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.
Inventors:
SEO JUNGDONG (KR)
LIM JAEHYUN (KR)
LIM JAEHYUN (KR)
Application Number:
PCT/KR2016/014167
Publication Date:
June 14, 2018
Filing Date:
December 05, 2016
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
H04N19/109; H04N19/105; H04N19/119; H04N19/13; H04N19/139; H04N19/172; H04N19/176; H04N19/44; H04N19/513; H04N19/91
Foreign References:
| KR20160030140A | 2016-03-16 | |||
| KR20080070374A | 2008-07-30 | |||
| KR20140093910A | 2014-07-29 | |||
| KR20160132863A | 2016-11-21 | |||
| US20160080770A1 | 2016-03-17 |
Other References:
See also references of EP 3541073A4
Attorney, Agent or Firm:
ENVISION PATENT & LAW FIRM (KR)
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