公开(公告)号：US20250039435A1

公开(公告)日：2025-01-30

申请号：US18911319

申请日：2024-10-10

Applicant: InterDigital VC Holdings, Inc.

Inventor： Jiancong LUO ,  Yuwen HE

IPC: H04N19/52 ,  H04N19/105 ,  H04N19/132 ,  H04N19/139 ,  H04N19/167 ,  H04N19/176 ,  H04N19/55

Abstract: Method, apparatus and systems are disclosed. In one embodiment, a method of decoding includes obtaining a sub-block based motion prediction signal for a current block of the video; obtaining one or more spatial gradients of the sub-block based motion prediction signal or one or more motion vector difference values; obtaining a refinement signal for the current block based on the one or more obtained spatial gradients or the one or more obtained motion vector difference values; obtaining a refined motion prediction signal for the current block based on the sub-block based motion prediction signal and the refinement signal; and decoding the current block based on the refined motion prediction signal.

公开(公告)号：US20250106415A1

公开(公告)日：2025-03-27

申请号：US18975767

申请日：2024-12-10

Applicant: InterDigital VC Holdings, Inc.

Inventor： Jiancong LUO ,  Lihua ZHU ,  Peng YIN

IPC: H04N19/30 ,  H04N19/70

Abstract: There are provided methods and apparatus for video usability information (VUI) for scalable video coding (SVC). An apparatus includes an encoder (100) for encoding video signal data into a bitstream. The encoder specifies video user information, excluding hypothetical reference decoder parameters, in the bitstream using a high level syntax element. The video user information corresponds to a set of interoperability points in the bitstream relating to scalable video coding (340, 355).

公开(公告)号：US20230412823A1

公开(公告)日：2023-12-21

申请号：US18240229

申请日：2023-08-30

Applicant: InterDigital VC Holdings, Inc.

Inventor： Jiancong LUO ,  Lihua ZHU ,  Peng YIN

IPC: H04N19/30 ,  H04N19/70

CPC classification number: H04N19/30 ,  H04N19/70

Abstract: There are provided methods and apparatus for video usability information (VUI) for scalable video coding (SVC). An apparatus includes an encoder (100) for encoding video signal data into a bitstream. The encoder specifies video user information, excluding hypothetical reference decoder parameters, in the bitstream using a high level syntax element. The video user information corresponds to a set of interoperability points in the bitstream relating to scalable video coding (340, 355).