公开(公告)号：US20250030846A1

公开(公告)日：2025-01-23

申请号：US18904357

申请日：2024-10-02

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Virginie DRUGEON ,  Klyofumi ABE ,  Takahiro NISHI ,  Tadamasa TOMA

IPC: H04N19/11 ,  H04N19/119 ,  H04N19/159 ,  H04N19/167 ,  H04N19/176 ,  H04N19/593

Abstract: A decoding method includes: determining two partitions in a current block according to a geometric partitioning mode; deriving an angular intra prediction mode from the geometric partitioning mode using a mapping relation between geometric partitioning modes and angular intra prediction modes; and predicting a first partition among the two partitions according to the angular intra prediction mode, in which in the deriving of the angular intra prediction mode, when a shape of the current block is square, a first mapping relation is used to derive the angular intra prediction mode, and when the shape of the current block is not square, a second mapping relation different from the first mapping relation is used to derive the angular intra prediction mode.