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US 10,708,589 B2Granted
Video encoding and decoding method and apparatus involving boundary filtering
AssigneeSamsung Electronics Co., Ltd.
InventorsMikhail Mishurovskiy, Jin-young Lee
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Abstract
Provided are a video encoding apparatus, a video encoding method, a video decoding apparatus, and a video decoding method capable of filtering a boundary of partitions within a block.
Claims18
A video decoding method comprising:
- obtaining at least two prediction units split from a coding unit of an image;
- determining a filtering condition of a prediction unit boundary filter, and performing filtering by using the prediction unit boundary filter on a predicted value of a pixel adjacent to a boundary between the at least two prediction units based on the filtering condition;
- and
- reconstructing a value of the pixel by using the filtered predicted value,
- wherein the determining of the filtering condition of the prediction unit boundary filter comprises:
- when a transformation coefficient does not exist in the coding unit, determining to perform a different type of the filtering from a type of the filtering performed when the transformation coefficient exists in the coding unit;
- and
- determining an intensity of the filtering by adjusting filtering coefficients and/or a number of filtering taps, based on information indicating whether a residual value exists in the coding unit or not, and
- wherein the filtering condition of the boundary filter is shared with a deblocking filter.
6 more elements
A video decoding apparatus comprising at least one processor configured to:
- obtain at least two prediction units split from a coding unit of an image;
- determine a filtering condition of a prediction unit boundary filter, and perform filtering by using the prediction unit boundary filter on a predicted value of a pixel adjacent to a boundary between the at least two prediction units based on the filtering condition;
- and
- reconstruct a value of the pixel by using the filtered predicted value,
- wherein the at least one processor is further configured to:
- determine, when a transformation coefficient does not exist in the coding unit, to perform a different type of the filtering from a type of the filtering performed when the transformation coefficient exists in the coding unit, and
- determine an intensity of the filtering by adjusting filtering coefficients and/or a number of filtering taps, based on information indicating whether a residual value exists in the coding unit or not, and
- wherein the filtering condition of the boundary filter is shared with a deblocking filter.
5 more elements
A video encoding method comprising:
- obtaining at least two prediction units split from a coding unit of an image;
- determining a filtering condition of a prediction unit boundary filter, and performing filtering by using the prediction unit boundary filter on a predicted value of a pixel adjacent to a boundary between the at least two prediction units based on the filtering condition;
- and
- encoding the residual value by using the filtered predicted value and a value of the pixel if the predicted value is filtered,
- wherein the determining of the filtering condition of the prediction unit boundary filter comprises:
- when a transformation coefficient does not exist in the coding unit, determining to perform a different type of the filtering from a type of the filtering performed when the transformation coefficient exists in the coding unit;
- and
- determining an intensity of the filtering by adjusting filtering coefficients and/or a number of filtering taps, based on information indicating whether a residual value exists in the coding unit or not, and
- wherein the filtering condition of the boundary filter is shared with a deblocking filter.
6 more elements
Dependencies are inferred from the claim text.