# US 2019/0246133 A1 · Method and apparatus for processing video signal

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- Number: US 2019/0246133 A1
- Document ID: US20190246133A1
- Status: Published application
- Kind: A1
- Application number: 16/314,942
- Filed: 2017-06-30
- Published: 2019-08-08
- Earliest claimed: 2016-07-05
- Assignees: Kt Corporation
- Applicants: Kt Corporation
- Inventors: Bae Keun LEE
- Web page: https://patentgrep.com/patent/US20190246133A1

## CPC

- H04N 19/159: Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
- H04N 19/513: Processing of motion vectors
- H04N 19/105: Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
- H04N 19/107: between spatial and temporal predictive coding, e.g. picture refresh
- H04N 19/119: Adaptive subdivision aspects, e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
- H04N 19/176: the region being a block, e.g. a macroblock
- H04N 19/44: Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
- H04N 19/50: using predictive coding (H04N19/61 takes precedence)
- H04N 19/70: characterised by syntax aspects related to video coding, e.g. related to compression standards
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION

## Abstract

A method for decoding a video according to the present invention may comprise: generating a first prediction block for a current block based on a first prediction mode, generating a second prediction block for a current block based on a second prediction mode, and generating a final prediction block of the current block based on the first prediction block and the second prediction block.

## Claims

### Claim 1

A method for decoding a video, the method comprising:
generating a first prediction block for a current block based on a first prediction mode;
generating a second prediction block for a current block based on a second prediction mode; and
generating a final prediction block of the current block based on the first prediction block and the second prediction block.

### Claim 2 (depends on 1)

The method of claim 1, wherein the first prediction mode is different from the second prediction mode.

### Claim 3 (depends on 2)

The method of claim 2, wherein the first prediction mode is an intra prediction mode and the second prediction mode is an inter prediction mode.

### Claim 4 (depends on 1)

The method of claim 1, wherein the first prediction mode is an inter prediction mode different from the second prediction mode, and the inter prediction mode comprises at least one of a skip mode, a merge mode an AMVP (Advanced Motion Vector Prediction) mode or a current picture referencing mode.

### Claim 5 (depends on 1)

The method of claim 1, wherein the final prediction block is obtained based on a weighted sum operation between the first prediction block and the second prediction block.

### Claim 6 (depends on 5)

The method of claim 5, wherein weights applied to the first prediction block and the second prediction block are determined based on a weighted prediction parameter of the current block.

### Claim 7 (depends on 1)

The method of claim 1, wherein whether to use a prediction method combining the first prediction mode and the second prediction mode is determined based on a shape or a size of the current block.

### Claim 8 (depends on 1)

The method of claim 1, wherein the current block comprises a first sub-block and a second sub-block, and
wherein a final prediction block of the first sub-block is generated based on the first prediction block and a final prediction block of the second sub-block is generated based on the first prediction block and the second prediction block.

### Claim 9

A method for encoding a video, the method comprising:
generating a first prediction block for a current block based on a first prediction mode;
generating a second prediction block for a current block based on a second prediction mode; and
generating a final prediction block of the current block based on the first prediction block and the second prediction block.

### Claim 10 (depends on 9)

The method of claim 9, wherein the first prediction mode is different from the second prediction mode.

### Claim 11 (depends on 10)

The method of claim 10, wherein the first prediction mode is an intra prediction mode and the second prediction mode is an inter prediction mode.

### Claim 12 (depends on 9)

The method of claim 9, wherein the first prediction mode is an inter prediction mode different from the second prediction mode, and the inter prediction mode comprises at least one of a skip mode, a merge mode an AMVP (Advanced Motion Vector Prediction) mode or a current picture referencing mode.

### Claim 13 (depends on 9)

The method of claim 9, wherein the current block comprises a first sub-block and a second sub-block, and
wherein a final prediction block of the first sub-block is generated based on the first prediction block and a final prediction block of the second sub-block is generated based on the first prediction block and the second prediction block.

### Claim 14

An apparatus for decoding a video, the apparatus comprising:
a prediction unit to generate a first prediction block for a current block based on a first prediction mode, generate a second prediction block for a current block based on a second prediction mode, and generate a final prediction block of the current block based on the first prediction block and the second prediction block.

### Claim 15

An apparatus for encoding a video, the apparatus comprising:
a prediction unit to generate a first prediction block for a current block based on a first prediction mode, generate a second prediction block for a current block based on a second prediction mode, and generate a final prediction block of the current block based on the first prediction block and the second prediction block.