Back to results
US 11,889,091 B2Granted
Methods for processing chroma signals
AssigneeAlibaba Group Holding Limited
InventorsMohammed Golam Sarwer, Jiancong Luo, Yan Ye
Life of this patent
Estimating the term…
Abstract
The present disclose provides methods and systems for processing chroma signals. According to some embodiments, the method can include: receiving a sequence parameter set (SPS); and determining, based on a first flag signaled in the SPS, whether chroma residual scaling is enabled or disabled for a slice associated with the SPS.
Claims7
A computer-implemented decoding method, comprising:
- determining a value of a pps_chroma_tool_offsets_present_flag signaled in a picture parameter set (PPS) associated with a video sequence;
- and
- in response to the value of the pps_chroma_tool_offsets_present_flag being equal to 1, decoding one or more picture level chroma de-blocking parameters in a bitstream associated with the video sequence,
- wherein when the value of the pps_chroma_tool_offsets_present_flag is equal to 0, no picture level chroma de-blocking parameter is signaled in the bitstream, and
- wherein the one or more picture level chroma de-blocking parameters comprise at least one of a beta offset or a tc offset.
2 more elements
A non-transitory computer readable medium storing a bitstream, wherein the bitstream comprises:
- a picture parameter set (PPS) associated with a video sequence, the PPS comprising a pps_chroma_tool_offsets_present_flag indicating whether chroma de-blocking parameters are signaled in the bitstream,
- wherein when a value of the pps_chroma_tool_offsets_present_flag is equal to 1, the bitstream comprises one or more picture level chroma de-blocking parameters,
- wherein when the value of the pps_chroma_tool_offsets_present_flag is equal to 0, the bitstream does not comprise the one or more picture level chroma de-blocking parameters, and
- wherein the one or more picture level chroma de-blocking parameters comprise at least one of a beta offset or a tc offset.
1 more element
A computer-implemented encoding method, comprising:
- determining a value of a pps_chroma_tool_offsets_present_flag signaled in a picture parameter set (PPS) associated with a video sequence;
- and
- in response to the value of the pps_chroma_tool_offsets_present_flag being equal to 1, signaling one or more picture level chroma de-blocking parameters in a bitstream associated with the video sequence,
- wherein when the value of the pps_chroma_tool_offsets_present_flag is equal to 0, no picture level chroma de-blocking parameter is signaled in the bitstream, and
- wherein the one or more picture level chroma de-blocking parameters comprise at least one of a beta offset or a tc offset.
2 more elements
Dependencies are inferred from the claim text.