公开(公告)号：US10771820B2

公开(公告)日：2020-09-08

申请号：US16105616

申请日：2018-08-20

申请人： SAMSUNG ELECTRONICS CO., LTD. ,  INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY

发明人： Sun-il Lee ,  Sangyoun Lee ,  Sanghoon Lee ,  Dosik Hwang ,  Changhyun Park ,  Sewoong Ahn ,  Jinseong Jang ,  Chan-yul Kim ,  Taeoh Kim ,  Taejoon Eo ,  Jongyoo Kim

IPC分类号： H04N19/86 ,  H04N19/172 ,  H04N19/186 ,  H04N19/136

摘要： Provided is an image encoding method including generating a first picture reconstructed by using a residual picture and a predicted picture; generating a second picture by applying a first artifact reduction filter to the first picture; determining a picture having a smaller bit-rate distortion cost from among the first and second pictures by comparing a first bit-rate distortion cost of the first picture with a second bit-rate distortion cost of the second picture; generating a third picture by applying an in-loop filter to the determined picture; generating a fourth picture by applying a second artifact reduction filter to the third picture; determining a picture having smaller distortion from among the third and fourth pictures by comparing first distortion of the third picture with second distortion of the fourth picture; and generating, via a processor, a bitstream including information about whether the second artifact reduction filter is applied.