公开(公告)号：US20190289289A1

公开(公告)日：2019-09-19

申请号：US16084065

申请日：2017-03-18

Applicant: ZTE Corporation

Inventor： Cheolkon JUNG ,  Shengtao YU ,  Peng KE ,  Ming LI ,  Ping WU ,  Guoqiang SHANG ,  Zhao WU

IPC: H04N19/124 ,  H04N19/172 ,  H04N19/186 ,  H04N19/85 ,  H04N19/98 ,  H04N19/117 ,  H04N19/44

Abstract: Provided are picture encoding and decoding methods and apparatuses, and a picture encoding and decoding system. The picture encoding method includes: determining an adjustment factor according to pixel sampling values of a video picture; converting the video picture according to the adjustment factor, and encoding the converted video picture; and writing the adjustment factor into a bitstream obtained by encoding the converted video picture.