公开(公告)号：US12284325B2

公开(公告)日：2025-04-22

申请号：US17892911

申请日：2022-08-22

Applicant: InterDigital VC Holdings, Inc.

Inventor： Philippe Hanhart ,  Yuwen He ,  Yan Ye

IPC: H04N13/161 ,  H04N19/172 ,  H04N19/186 ,  H04N19/593 ,  H04N19/597

Abstract: A video coding device may be configured to periodically select the frame packing configuration (e.g., face layout and/or face rotations parameters) associated with a RAS. The device may receive a plurality of pictures, which may each comprise a plurality of faces. The pictures may be grouped into a plurality of RASs. The device may select a frame packing configuration with the lowest cost for a first RAS. For example, the cost of a frame packing configuration may be determined based on the first picture of the first RAS. The device may select a frame packing configuration for a second RAS. The frame packing configuration for the first RAS may be different than the frame packing configuration for the second RAS. The frame packing configuration for the first RAS and the frame packing configuration for the second RAS may be signaled in the video bitstream.

公开(公告)号：US20250168350A1

公开(公告)日：2025-05-22

申请号：US19033943

申请日：2025-01-22

Applicant: InterDigital VC Holdings, Inc.

Inventor： Shilin Wu ,  Philippe Hanhart ,  Yuwen He

IPC: H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/60 ,  H04N19/80

Abstract: Systems and methods are described for video coding using adaptive Hadamard filtering of reconstructed blocks, such as coding units. In some embodiments, where Hadamard filtering might otherwise encompass samples outside the current coding unit, extrapolated samples are generated for use in the filtering. Reconstructed samples from neighboring blocks may be used in the filtering where available (e.g. in a line buffer). In some embodiments, different filter strengths are applied to different spectrum components in the transform domain. In some embodiments, filter strength is based on position of filtered samples within the block. In some embodiments, filter strength is based on the prediction mode used to code the current block.