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US 11,902,515 B2Granted
Method and apparatus for video coding
AssigneeHuawei Technologies Co., Ltd.
InventorsAlexey Konstantinovich Filippov, Vasily Alexeevich Rufitskiy
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Abstract
A video coding device, comprising a sequence of filters that are configurable by one or more primary parameters and one or more secondary parameters, and a filter controller configured to adjust the one or more secondary parameters based on the one or more primary parameters and based on a strength criterion of the sequence of filters.
Claims14
A video coding device, comprising:
- a sequence of filters that are configurable based on one or more primary parameters and one or more secondary parameters,
- wherein the sequence of filters comprises one or more primary filters that are configurable based on the one or more primary parameters and one or more secondary filters that are configurable based on the one or more secondary parameters, wherein the one or more primary filters are located in the sequence of filters before the one or more secondary filters,
- wherein the sequence of filters comprises:
- a reference sample filter as a primary filter and configured to adaptively filter one or more neighbouring samples of a current video block to obtain one or more reference samples, wherein the reference sample filter corresponds to a {1,2,1} filter;
- and
- an interpolation filter as a secondary filter and configured to predict one or more samples of the current video block using an interpolation of the one or more reference samples,
- wherein the one or more primary parameters comprise a reference sample filter flag of the reference sample filter and the one or more secondary parameters comprise a filter strength parameter of the interpolation filter,
- wherein the reference sample filter flag indicates whether the reference sample filter is applied and the filter strength parameter indicates whether a weak or strong interpolation filter is applied,
- wherein the interpolation filter is configured to use the interpolation according to the filter strength parameter, and
- wherein the video coding device further comprises a filter controller configured to determine the filter strength parameter based on the reference sample filter flag.
7 more elements
A method for configuring a sequence of filters for video coding, the method comprising:
- configuring the sequence of filters with one or more primary parameters and one or more secondary parameters,
- wherein the sequence of filters comprises one or more primary filters that are configurable based on the one or more primary parameters and one or more secondary filters that are configurable based on the one or more secondary parameters, wherein the one or more primary filters are located in the sequence of filters before the one or more secondary filters,
- wherein the sequence of filters comprises:
- a reference sample filter as a primary filter and configured to adaptively filter one or more neighbouring samples of a current video block to obtain one or more reference samples, wherein the reference sample filter corresponds to a {1,2,1} filter;
- and
- an interpolation filter as a secondary filter and configured to predict one or more samples of the current video block using an interpolation of the one or more reference samples,
- wherein the one or more primary parameters comprise a reference sample filter flag of the reference sample filter and the one or more secondary parameters comprise a filter strength parameter of the interpolation filter, wherein the reference sample filter flag indicates whether the reference sample filter is applied and the filter strength parameter indicates whether a weak or strong interpolation filter is applied, and
- wherein the method further comprises:
- determining the filter strength parameter based on the reference sample filter flag, and
- configuring the interpolation filter to use the interpolation according to the filter strength parameter.
7 more elements
Dependencies are inferred from the claim text.