Cross-plane filtering for chroma signal enhancement in video coding
AssigneeInterDigital Madison Patent Holdings, SAS
InventorsJie Dong, Yuwen He, Yan Ye
Life of this patent
Estimating the term…
Abstract
Cross-plane filtering may be used to restore blurred edges and/or textures in one or both chroma planes using information from a corresponding luma plane. Adaptive cross-plane filters may be implemented. Cross-plane filter coefficients may be quantized and/or signaled such that overhead in a bitstream minimizes performance degradation. Cross-plane filtering may be applied to select regions of a video image (e.g., to edge areas). Cross-plane filters may be implemented in single-layer video coding systems and/or multi-layer video coding systems.
Claims21
1-26. (canceled)
A method for video encoding comprising:
- obtaining a video signal, wherein the video signal comprises a first color component and a second color component;
- obtaining a reconstructed first color component based on the first color component and obtaining a reconstructed second color component based on the second color component;
- obtaining a cross-plane filter indication for modifying the reconstructed first color component based on the reconstructed second color component;
- and
- including the cross-plane filter indication to a bitstream that is representative of the video signal.
An apparatus for video encoding comprising:
- a processor that is configured to:
- obtain a video signal, wherein the video signal comprises a first color component and a second color component;
- obtain a reconstructed first color component based on the first color component and obtain a reconstructed second color component based on the second color component;
- obtain a cross-plane filter indication for modifying the reconstructed first color component based on the reconstructed second color component;
- and
- include the cross-plane filter indication to a bitstream that is representative of the video signal.
A computer readable medium including instructions for video encoding, the instructions causing a processor to perform:
- obtaining a video signal, wherein the video signal comprises a first color component and a second color component;
- obtaining a reconstructed first color component based on the first color component and obtaining a reconstructed second color component based on the second color component;
- obtaining a cross-plane filter indication for modifying the reconstructed first color component based on the reconstructed second color component;
- and
- including the cross-plane filter indication to a bitstream that is representative of the video signal.
Dependencies are inferred from the claim text.