# US 2014/0192880 A1 · Inter layer motion data inheritance

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- Number: US 2014/0192880 A1
- Document ID: US20140192880A1
- Status: Published application
- Kind: A1
- Application number: 13/793,059
- Filed: 2013-03-11
- Published: 2014-07-10
- Earliest claimed: 2013-01-04
- Inventors: Zhipin Deng; Yi-Jen Chiu; Lidong Xu; Wenhao Zhang; Yu Han; Xiaoxia Cai; Hong Jiang
- Web page: https://patentgrep.com/patent/US20140192880A1

## CPC

- H04N 19/59: involving spatial sub-sampling or interpolation, e.g. alteration of picture size or resolution
- H04N 19/103: Selection of coding mode or of prediction mode
- H04N 19/157: Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
- H04N 19/187: the unit being a scalable video layer
- H04N 19/33: in the spatial domain
- H04N 19/513: Processing of motion vectors
- H04N 19/52: by predictive encoding
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION

## Abstract

Systems, devices and methods related to video coding including inter layer motion data inheritance are described.

## Claims

### Claim at position 1

1-25. (canceled)

### Claim 26

An apparatus, comprising:
circuitry configured to access reference motion data associated with at least one reference layer picture, the reference layer picture comprising one of a plurality of pictures of a first layer of multi-layer video content, the decoder circuitry to perform inter-layer prediction for a current picture based at least in part on the reference motion data, wherein the current picture comprises one of a plurality of pictures of a second layer of the multi-layer video content, wherein the second layer is different than the first layer.

### Claim 27 (depends on 26)

The apparatus of claim 26, wherein the circuitry is configured to perform inter-layer prediction for the current picture in response to a bitstream flag conveyed to the decoder circuitry in a bitstream syntax associated with the multi-layer video content.

### Claim 28 (depends on 26)

The apparatus of claim 26, wherein the reference motion data comprises at least motion vectors, and reference indices.

### Claim 29 (depends on 26)

The apparatus of claim 26, further comprising memory to store at least one of the reference layer picture or the reference motion data.

### Claim 30 (depends on 26)

The apparatus of claim 26, wherein the circuitry comprises at least one of video decoder circuitry or video encoder circuitry.

### Claim 31 (depends on 26)

The apparatus of claim 26, the circuitry further configured to determine a collocated block of the reference layer picture associated with a block of the second layer.

### Claim 32 (depends on 26)

The apparatus of claim 26, wherein the first layer comprises an enhancement layer, and wherein the second layer comprises a base layer.

### Claim 33 (depends on 26)

The apparatus of claim 26, the circuitry further configured to apply a scaling factor to at least one motion vector of the reference motion data prior, wherein the scaling factor comprises at least one of a pre-defined scaling factor or an adaptive scaling factor.

### Claim 34 (depends on 26)

The apparatus of claim 26, the circuitry further configured to perform motion compensation based at least in part on the performed inter-layer prediction.

### Claim 35

A method comprising:
accessing reference motion data associated with at least one reference layer picture, the reference layer picture comprising one of a plurality of pictures of a first layer of multi-layer video content; and
performing inter-layer prediction for a current picture based at least in part on the reference motion data, wherein the current picture comprises one of a plurality of pictures of a second layer of the multi-layer video content, wherein the second layer is different than the first layer.

### Claim 36 (depends on 35)

The method of claim 35, wherein performing inter-layer prediction for the current picture comprises performing inter-layer prediction for the current picture in response to a bitstream flag conveyed in a bitstream syntax associated with the multi-layer video content.

### Claim 37 (depends on 35)

The method of claim 35, wherein the reference motion data comprises at least motion vectors, and reference indices.

### Claim 38 (depends on 35)

The method of claim 35, further comprising storing at least one of the reference layer picture or the reference motion data.

### Claim 39 (depends on 35)

The method of claim 35, further comprising determining a collocated block of the reference layer picture associated with a block of the second layer.

### Claim 40 (depends on 35)

The method of claim 35, wherein the first layer comprises an enhancement layer, and wherein the second layer comprises a base layer.

### Claim 41 (depends on 35)

The method of claim 35, further comprising applying a scaling factor to at least one motion vector of the reference motion data prior, wherein the scaling factor comprises at least one of a pre-defined scaling factor or an adaptive scaling factor.

### Claim 42 (depends on 35)

The method of claim 35, the method further comprising performing motion compensation based at least in part on the performed inter-layer prediction.

### Claim 43

At least one machine-readable medium comprising a plurality of instructions that in response to being executed on a computing device, cause the computing device to:
access reference motion data associated with at least one reference layer picture, the reference layer picture comprising one of a plurality of pictures of a first layer of multi-layer video content; and
perform inter-layer prediction for a current picture based at least in part on the reference motion data, wherein the current picture comprises one of a plurality of pictures of a second layer of the multi-layer video content, wherein the second layer is different than the first layer.

### Claim 44 (depends on 43)

The at least one machine-readable medium of claim 43, wherein performing inter-layer prediction for the current picture comprises performing inter-layer prediction for the current picture in response to a bitstream flag conveyed in a bitstream syntax associated with the multi-layer video content.

### Claim 45 (depends on 43)

The at least one machine-readable medium of claim 43, wherein the reference motion data comprises at least motion vectors, and reference indices.

### Claim 46 (depends on 43)

The at least one machine-readable medium of claim 43, further comprising applying a scaling factor to at least one motion vector of the reference motion data prior, wherein the scaling factor comprises at least one of a pre-defined scaling factor or an adaptive scaling factor.

### Claim 47 (depends on 43)

The at least one machine-readable medium of claim 43, the method further comprising performing motion compensation based at least in part on the performed inter-layer prediction.