公开(公告)号：US20180160119A1

公开(公告)日：2018-06-07

申请号：US15816859

申请日：2017-11-17

Applicant: MEDIATEK INC.

Inventor： Chin-fa SU ,  Li-Wei LU ,  Kuan-Hung CHOU ,  Chien-Chang WANG

IPC: H04N19/137 ,  H04N19/142 ,  H04N19/162 ,  H04N19/172 ,  H04N19/44 ,  H04N19/543 ,  H04N19/55

CPC classification number: H04N19/137 ,  H04N19/132 ,  H04N19/142 ,  H04N19/162 ,  H04N19/167 ,  H04N19/17 ,  H04N19/172 ,  H04N19/44 ,  H04N19/543 ,  H04N19/55 ,  H04N19/597

Abstract: Methods and apparatus of video decoding for a 360-degree video sequence are disclosed. According to one method, a bitstream comprising compressed data for a previous 360-degree frame and a current 360-degree frame in a 360-degree video sequence is received. A first view region in the previous 360-degree frame associated with a first field of view is determined for a user at a previous frame time. An extended region from the first view region in the current 360-degree frame is determined based on user's viewpoint information. The extended region in the current 360-degree frame is then decoded. A second view region in the current 360-degree frame associated with an actual field of view is rendered for the user at a current frame time.