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US 12,010,304 B2Granted
Video encoding/decoding method and apparatus utilizing merge candidate indices
AssigneeIntellectual Discovery Co., Ltd.
InventorsBae Keun Lee, Dong San Jun
Life of this patent
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Abstract
A video signal encoding/decoding method and apparatus according to the present invention divide a current block into two prediction units, construct a list of merge candidates for the current block, derive motion information of the current block using a merge candidate index and the list of merge candidates of the current block, and perform inter-prediction of the current block using the derived motion information.
Claims9
A video signal decoding method, comprising:
- configuring a merge candidate list of a current block, the merge candidate list including a plurality of merge candidates;
- deriving motion information of the current block based on a merge candidate index and the merge candidate list of the current block;
- and
- performing inter prediction of the current block based on the derived motion information,
- wherein the current block is divided into a plurality of partitions including a first partition and a second partition,
- wherein the merge candidate index includes a first merge candidate index for the first partitions and a second merge candidate index for the second partition,
- wherein the first merge candidate index and the second merge candidate index are signaled from a bitstream, respectively,
- wherein the motion information of the current block includes first motion information for the first partition and second motion information for the second partition,
- wherein the first motion information for the first partition is derived based on a merge candidate with an index equal to the first merge candidate index among the plurality of merge candidates,
- wherein based on the second merge candidate index being less than the first merge candidate index, the second motion information for the second partition is derived based on a merge candidate with an index equal to the second merge candidate index among the plurality of merge candidates, and
- wherein based on the second merge candidate index being greater than or equal to the first merge candidate index, the second motion information for the second partition is derived based on a merge candidate with an index resulting from adding 1 to the second merge candidate index among the plurality of merge candidates.
8 more elements
A video signal encoding method, comprising:
- configuring a merge candidate list of a current block, the merge candidate list including a plurality of merge candidates;
- deriving motion information of the current block by using the merge candidate list of the current block;
- and
- encoding a merge candidate index indicating the motion information of the current block,
- wherein the current block is divided into a plurality of partitions including a first partition and a second partition,
- wherein the motion information of the current block includes first motion information for the first partition and second motion information for the second partition,
- wherein the merge candidate index includes a first merge candidate index for the first partitions and a second merge candidate index for the second partition,
- wherein an index of a first merge candidate having the first motion information among the plurality of merge candidates is encoded as the first merge candidate index for the first partition,
- wherein based on an index of a second merge candidate having the second motion information among the plurality of merge candidates being less than the index of the first merge candidate, the index of the second merge candidate is encoded as the second merge candidate index for the second partition, and
- wherein based on the index of the second merge candidate being greater than the index of the first merge candidate, an index resulting from subtracting 1 from the index of the second merge candidate is encoded as the second merge candidate index for the second partition.
7 more elements
A method of transmitting a bitstream, comprising:
- configuring a merge candidate list of a current block, the merge candidate list including a plurality of merge candidates;
- deriving motion information of the current block based on the merge candidate list of the current block;
- encoding a merge candidate index indicating the motion information of the current block to generate the bitstream;
- and
- transmitting the bitstream,
- wherein the current block is divided into a plurality of partitions including a first partition and a second partition,
- wherein the motion information of the current block includes first motion information for the first partition and second motion information for the second partition,
- wherein the merge candidate index includes a first merge candidate index for the first partitions and a second merge candidate index for the second partition,
- wherein an index of a first merge candidate having the first motion information among the plurality of merge candidates is encoded as the first merge candidate index for the first partition,
- wherein based on an index of a second merge candidate having the second motion information among the plurality of merge candidates being less than the index of the first merge candidate, the index of the second merge candidate is encoded as the second merge candidate index for the second partition, and
- wherein based on the index of the second merge candidate being greater than the index of the first merge candidate, an index resulting from subtracting 1 from the index of the second merge candidate is encoded as the second merge candidate index for the second partition.
8 more elements
Dependencies are inferred from the claim text.