公开(公告)号：WO2021061814A1

公开(公告)日：2021-04-01

申请号：PCT/US2020/052273

申请日：2020-09-23

Applicant: VID SCALE, INC.

Inventor： YANG, Hua ,  HE, Yuwen ,  CHEN, Wei ,  LI, Hongyu

IPC: H04N19/117 ,  H04N19/136 ,  H04N19/176 ,  H04N19/186 ,  H04N19/70 ,  H04N19/82 ,  H04N19/86

Abstract: A filter may be applied to a subset of components associated with a sample in a coding block. The output of the filter may be used to modify values for other component(s). For example, a filter may be applied to a selected (for example, dominant) component(s). The output of the filter may be used to modify a value for one of the other components (for example, non-dominant components). The output of the filter may be used, for example, after a weighting factor is applied to the filter output, to modify a value for another one of the other components. A joint refinement signal may be obtained, for example, as the filtered output signal minus the filter input signal of the selected component(s). A properly weighted version of the joint refinement signal may be applied to modify the other components.