# US 2014/0192900 A1 · Signaling layer dependency information in a parameter set

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2014/0192900 A1
- Document ID: US20140192900A1
- Status: Published application
- Kind: A1
- Application number: 14/145,598
- Filed: 2013-12-31
- Published: 2014-07-10
- Earliest claimed: 2013-01-04
- Assignees: Huawei Technologies Co., Ltd.
- Applicants: Sharp Laboratories of America, Inc.
- Inventors: Sachin G. DESHPANDE
- Web page: https://patentgrep.com/patent/US20140192900A1

## CPC

- H04N 19/70: characterised by syntax aspects related to video coding, e.g. related to compression standards
- H04N 19/30: using hierarchical techniques, e.g. scalability (H04N19/63 takes precedence)
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION

## Abstract

A system for decoding a video bitstream includes receiving a frame of the video that includes at least one slice and at least one tile and where each of the at least one slice and the at least one tile are not all aligned with one another.

## Claims

### Claim 1

A method for decoding a coded video sequence comprising:
(a) receiving a video syntax set that includes information applicable to said coded video sequence, where said coded video sequence includes a plurality of layers of coded video frames;
(b) wherein said video syntax set includes a dependency flag indicating one or more direct dependencies between said plurality of layers of said coded video sequence;
(c) wherein said direct dependency specifies whether a particular layer indexed by a second index value is a direct reference layer for another layer indexed by a first index value.

### Claim 2 (depends on 1)

The method of claim 1 wherein when said dependency flag with a value of 0 specifies that said particular layer indexed by said second index value is not a said direct reference layer for said another layer indexed by said first index value.

### Claim 3 (depends on 1)

The method of claim 1 wherein said dependency flag with a value of 1 specifies that said particular layer indexed by said second index value may be a said direct reference layer for said another layer indexed by said first index value.

### Claim 4 (depends on 1)

The method of claim 1 wherein said dependency flag is not present for said first index value and said second index value it is inferred to be 0.

### Claim 5 (depends on 1)

The method of claim 1 wherein said dependency flag is not present within a range of 0 to a value associated with a maximum number of said plurality of layers for said first index value and said second index value it is inferred to be 0.

### Claim 6 (depends on 1)

The method of claim 1 wherein said dependency flag includes a pair of indexes [i][j], where i is said first index value and j is said second index value.

### Claim 7 (depends on 6)

The method of claim 6 wherein said dependency flag including a pair of indexes [i][j], where i is said first index value and j is said second index value use 1 bit for signaling.