# US 2014/0192894 A1 · Implicit signaling of scalability dimension identifier 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 2014/0192894 A1
- Document ID: US20140192894A1
- Status: Published application
- Kind: A1
- Application number: 14/145,627
- Filed: 2013-12-31
- Published: 2014-07-10
- Earliest claimed: 2013-01-04
- Assignees: Dolby International AB
- Applicants: Sharp Laboratories of America, Inc.
- Inventors: Sachin G. DESHPANDE
- Web page: https://patentgrep.com/patent/US20140192894A1

## CPC

- H04N 19/30: using hierarchical techniques, e.g. scalability (H04N19/63 takes precedence)
- H04N 19/124: Quantisation
- H04N 19/13: Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
- H04N 19/159: Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
- H04N 19/172: the region being a picture, frame or field
- H04N 19/174: the region being a slice, e.g. a line of blocks or a group of blocks
- H04N 19/182: the unit being a pixel
- H04N 19/187: the unit being a scalable video layer
- H04N 19/36: Scalability techniques involving formatting the layers as a function of picture distortion after decoding, e.g. signal-to-noise [SNR] scalability
- H04N 19/39: involving multiple description coding [MDC], i.e. with separate layers being structured as independently decodable descriptions of input picture data
- H04N 19/43: Hardware specially adapted for motion estimation or compensation
- H04N 19/44: Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
- H04N 19/46: Embedding additional information in the video signal during the compression process (H04N19/517, H04N19/68, H04N19/70 take precedence)
- H04N 19/61: in combination with predictive coding
- H04N 19/68: involving the insertion of resynchronisation markers into the bitstream
- H04N 19/70: characterised by syntax aspects related to video coding, e.g. related to compression standards
- H04N 19/184: the unit being bits, e.g. of the compressed video stream
- H04N 19/31: in the temporal domain
- H04N 19/33: in the spatial domain
- H04N 19/37: with arrangements for assigning different transmission priorities to video input data or to video coded data
- 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;
(b) wherein said video syntax set includes a flag indicating either implicit or explicit signaling of a scalability dimension identifier for said coded video sequence;
(c) wherein said scalability dimension identifier specifies an identifier of a plurality of scalability dimension types of a particular layer of said coded video sequence.

### Claim 2 (depends on 1)

The method of claim 1 wherein said flag with a value of 1 specifies said explicit signaling of said scalability dimension identifier.

### Claim 3 (depends on 2)

The method of claim 2 wherein said scalability dimension identifier is a dimension_id[i][j], where i specifies said particular layer and j specifies said scalability dimension type of said particular layer.

### Claim 4 (depends on 1)

The method of claim 1 wherein said flag with a value of 0 specifies said implicit signaling of said scalability dimension identifier.

### Claim 5 (depends on 4)

The method of claim 4 wherein said scalability dimension identifier is a dimension_id[i][j], where i specifies said particular layer and j specifies said scalability dimension type of said particular layer.

### Claim 6 (depends on 1)

The method of claim 1 wherein said implicit or explicit signaling uses a syntax including if(!flag) condition.

### Claim 7 (depends on 1)

The method of claim 1 wherein said scalability dimension identifier specifies more than one identifier of a plurality of scalability dimension types of a particular layer of said coded video sequence.

### Claim 8 (depends on 4)

The method of claim 4 wherein said flag with a value of 0 specifies said implicit signaling of said scalability dimension identifier where the values of scalability dimension identifier are derived based on other information signaled in video syntax set.

### Claim 9 (depends on 8)

The method of claim 8 wherein the other information signaled in video syntax set used for derivation of scalability dimension identifier includes information about length in bits of scalability dimension identifier.

### Claim 10 (depends on 9)

The method of claim 9 wherein the length in bits of scalability dimension identifier is dimension_id_len_minus1[i].