公开(公告)号：US10721467B2

公开(公告)日：2020-07-21

申请号：US15569597

申请日：2016-04-22

Applicant: LG Electronics Inc.

Inventor： Eunyong Son ,  Seoungwook Park ,  Yongjoon Jeon ,  Moonmo Koo

IPC: H04N19/107 ,  H04N19/13 ,  H04N19/122 ,  H04N19/124 ,  H04N19/70 ,  H04N19/176 ,  H04N19/119 ,  H04N19/46

Abstract: A method for decoding a picture, according to the present invention, comprises the steps of: receiving split flag information and merge flag information; splitting a coding unit (CU) of one or more depths n into CUs of depth n+1, on the basis of the split flag information; generating a merged CU by combining parts of the CUs of the depth n+1, on the basis of the merge flag information; and performing a decoding procedure for generating a restoration picture, on the basis of the generated merge CU. According to the present invention, a decoding procedure can be performed by merging CUs having similar characteristics, and thus auxiliary information to be received and processed is reduced and coding efficiency is improved.

公开(公告)号：US10554968B2

公开(公告)日：2020-02-04

申请号：US15580873

申请日：2016-04-22

Applicant: LG Electronics Inc.

Inventor： Seoungwook Park ,  Jaehyun Lim ,  Yongjoon Jeon ,  Eunyong Son

IPC: H04N19/139 ,  H04N19/513 ,  H04N19/70 ,  H04N19/105

Abstract: An inter prediction method according to the present invention, which is performed by a decoding apparatus, comprises the steps of: configuring a reference picture set for a current picture; generating a virtual reference picture corresponding to an original reference picture in the reference picture set; deriving a motion vector for a current block in the current picture; and generating a prediction sample for the current block on the basis of the motion vector and the virtual reference picture. According to the present invention, the performance of inter prediction can be enhanced on the basis of a virtual reference picture having higher correlation with a current picture, and accordingly the amount of data allocated to a residual signal can be reduced and the overall coding efficiency can be improved.