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US 11,695,952 B2Granted
Image signal encoding/decoding method, and apparatus therefor
AssigneeGuangdong Oppo Mobile Telecommunications Corp., Ltd.
InventorBae Keun Lee
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Abstract
An image decoding method according to the present invention comprises the steps of: deriving a merge candidate of a current block from a neighboring block of the current block; adding the derived merge candidate to a merge candidate list; when the number of merge candidates previously added to the merge candidate list is less than a threshold value, adding at least one prediction area merge candidate included in a prediction area motion information table to the merge candidate list; deriving motion information about the current block on the basis of the merge candidate list; and performing motion compensation on the current block on the basis of the derived motion information.
Claims20
A video decoding method, comprising:
- deriving a merge candidate for a current block from a neighboring block of the current block;
- adding the derived merge candidate to a merge candidate list;
- adding at least one prediction region merge candidate derived based on motion information of the neighboring block included in a prediction region motion information list to the merge candidate list when a number of merge candidates added to the merge candidate list is smaller than a first threshold value;
- wherein the prediction region merge candidate included in the prediction region motion information list is obtained by determining whether the neighboring block is included in a predetermined region, wherein the predetermined region is a merge processing area;
- when it is determined that the neighboring block is not included in the predetermined region, the prediction region merge candidate is added to the prediction region motion information list;
- or when it is determined that the neighboring block is included in the predetermined region, the prediction region merge candidate is not added to the prediction region motion information list;
- deriving motion information for the current block based on the merge candidate list;
- and
- performing motion compensation for the current block based on the derived motion information, wherein
- whether to add the prediction region merge candidate to the merge candidate list is determined based on a result of comparison between motion information of the prediction region merge candidate and motion information of a merge candidate included in the merge candidate list.
7 more elements
A video encoding method, comprising:
- deriving a merge candidate for a current block from a neighboring block of the current block;
- adding the derived merge candidate to a merge candidate list;
- adding at least one prediction region merge candidate derived based on motion information of the neighboring block included in a prediction region motion information list to the merge candidate list when a number of merge candidates added to the merge candidate list is smaller than a first threshold value;
- wherein the prediction region merge candidate included in the prediction region motion information list is obtained by determining whether the neighboring block is included in a predetermined region, wherein the predetermined region is a merge processing area;
- when it is determined that the neighboring block is not included in the predetermined region, the prediction region merge candidate is added to the prediction region motion information list;
- or when it is determined that the neighboring block is included in the predetermined region, the prediction region merge candidate is not added to the prediction region motion information list;
- deriving motion information for the current block based on the merge candidate list;
- and
- performing motion compensation for the current block based on the derived motion information, wherein
- whether to add the prediction region merge candidate to the merge candidate list is determined based on a result of comparison between motion information of the prediction region merge candidate and motion information of a merge candidate included in the merge candidate list.
7 more elements
A video decoding apparatus comprising an inter prediction part for:
- deriving a merge candidate for a current block from a neighboring block of the current block;
- adding the derived merge candidate to a merge candidate list;
- adding at least one prediction region merge candidate derived based on motion information of the neighboring block included in a prediction region motion information list to the merge candidate list when a number of merge candidates added to the merge candidate list is smaller than a first threshold value;
- wherein the prediction region merge candidate included in the prediction region motion information list is obtained by determining whether the neighboring block is included in a predetermined region, wherein the predetermined region is a merge processing area;
- when it is determined that the neighboring block is not included in the predetermined region, the prediction region merge candidate is added to the prediction region motion information list;
- when it is determined that the neighboring block is included in the predetermined region, the prediction region merge candidate is not added to the prediction region motion information list;
- deriving motion information for the current block based on the merge candidate list;
- and
- performing motion compensation for the current block based on the derived motion information, wherein
- whether to add the prediction region merge candidate to the merge candidate list is determined based on a result of comparison between motion information of the prediction region merge candidate and motion information of a merge candidate included in the merge candidate list.
7 more elements
A video encoding apparatus comprising an inter prediction part for:
- deriving a merge candidate for a current block from a neighboring block of the current block;
- adding the derived merge candidate to a merge candidate list;
- adding at least one prediction region merge candidate derived based on motion information of the neighboring block included in a prediction region motion information list to the merge candidate list when a number of merge candidates added to the merge candidate list is smaller than a first threshold value;
- wherein the prediction region merge candidate included in the prediction region motion information list is obtained by determining whether the neighboring block is included in a predetermined region, wherein the predetermined region is a merge processing area;
- when it is determined that the neighboring block is not included in the predetermined region, the prediction region merge candidate is added to the prediction region motion information list;
- or when it is determined that the neighboring block is included in the predetermined region, the prediction region merge candidate is not added to the prediction region motion information list;
- deriving motion information for the current block based on the merge candidate list;
- and
- performing motion compensation for the current block based on the derived motion information, wherein
- whether to add the prediction region merge candidate to the merge candidate list is determined based on a result of comparison between motion information of the prediction region merge candidate and motion information of a merge candidate included in the merge candidate list.
7 more elements
Dependencies are inferred from the claim text.