公开(公告)号：US20190230384A1

公开(公告)日：2019-07-25

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 ,  H04N19/136 ,  H04N19/186

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.