公开(公告)号：US20240314297A1

公开(公告)日：2024-09-19

申请号：US18676050

申请日：2024-05-28

申请人： Electronics And Telecommunications Research Institute ,  University-Industry Cooperation Group Of Kyung Hee University

发明人： Gun BANG ,  Gwang-Hoon Park ,  Woong Lim ,  Hui-Yong KIm ,  Woo-Woen Gwun ,  Tae-Hyun Kim ,  Dae-Young Lee ,  Won-Jun Lee

IPC分类号： H04N19/105 ,  H04N19/119 ,  H04N19/159 ,  H04N19/176

CPC分类号： H04N19/105 ,  H04N19/119 ,  H04N19/159 ,  H04N19/176

摘要： Disclosed herein are a method and apparatus for image encoding and decoding using prediction based on a block shape. Whether a prediction mode is available for a target block is determined. The determination is performed based on the shape of the target block. When the prediction mode is determined to be unavailable for the target block, signaling related to the prediction mode may be omitted, and determination of an additional prediction mode is performed. When the prediction mode is determined to be available for the target block, information indicating whether the prediction mode is to be used for the target block is signaled.

公开(公告)号：US12034915B2

公开(公告)日：2024-07-09

申请号：US17621174

申请日：2020-06-22

申请人： Electronics and Telecommunications Research Institute ,  UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY

发明人： Gun Bang ,  Gwang-Hoon Park ,  Woong Lim ,  Hui-Yong Kim ,  Woo-Woen Gwun ,  Tae-Hyun Kim ,  Dae-Young Lee ,  Won-Jun Lee

IPC分类号： H04N19/105 ,  H04N19/119 ,  H04N19/159 ,  H04N19/176

CPC分类号： H04N19/105 ,  H04N19/119 ,  H04N19/159 ,  H04N19/176

摘要： Disclosed herein are a method and apparatus for image encoding and decoding using prediction based on a block shape. Whether a prediction mode is available for a target block is determined. The determination is performed based on the shape of the target block. When the prediction mode is determined to be unavailable for the target block, signaling related to the prediction mode may be omitted, and determination of an additional prediction mode is performed. When the prediction mode is determined to be available for the target block, information indicating whether the prediction mode is to be used for the target block is signaled.