# US 2026/0073571 A1 · Coding format for optimized encoding of volumetric video

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

- Number: US 2026/0073571 A1
- Document ID: US20260073571A1
- Status: Published application
- Kind: A1
- Application number: 19/126,401
- Filed: 2023-10-26
- Published: 2026-03-12
- Earliest claimed: 2022-11-04
- Assignees: InterDigital CE Patent Holdings, SAS
- Applicants: InterDigital CE Patent Holdings, SAS
- Inventors: Bertrand Chupeau; Julien Ricard; Gaëlle Martin-Cocher; Edouard Francois; Franck Galpin
- Web page: https://patentgrep.com/patent/US20260073571A1

## CPC

- G06T 9/001: {Model-based coding, e.g. wire frame}
- H04N 19/17: the unit being an image region, e.g. an object
- H04N 19/597: specially adapted for multi-view video sequence encoding
- H04N 19/70: characterised by syntax aspects related to video coding, e.g. related to compression standards
- G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION

## Abstract

Methods and devices for encoding and decoding a volumetric scene in a data stream, the volumetric scene being formatted as a list of atlas tiles are disclosed. Embodiments of syntaxes of the metadata describing such a data stream are also disclosed. An indication that the volumetric scene is formatted as a list of atlas tiles is provided, for example by setting the size of a main atlas to zero. The number of atlas tiles in the list and data describing each atlas tiles are also provided. At the decoding, the list of atlas tiles is retrieved by using these metadata.

## Claims

### Claim 1

A method of encoding a volumetric scene, the method comprising:
obtaining a list of atlas tiles, an atlas tile packing patches clustered according to a criterion based on similarity and continuity;
generating metadata comprising:
an indication on whether the volumetric scene is formatted as a list of atlas tiles;
information indicating a number of atlas tiles in the list of atlas tiles; and
for each atlas tile of the list:
a size; and
a location within the atlas tile for each patch packed in the atlas tile; and
encoding the list of atlas tiles and generated metadata in a data stream.

### Claim 2 (depends on 1)

The method of claim 1, wherein the indication on whether the volumetric scene is formatted as a list of atlas tiles is a size of a main atlas set to zero.

### Claim 3 (depends on 1)

The method of claim 1, wherein the list of atlas tiles' video component interleaves attribute atlas tiles' video component and depth atlas tiles' video component.

### Claim 4

A device for encoding a volumetric scene and comprising a memory associated with a processor configured for:
obtaining a list of atlas tiles, an atlas tile packing patches clustered according to a criterion based on similarity and continuity;
generating metadata comprising:
an indication on whether the volumetric scene is formatted as a list of atlas tiles;
information indicating a number of atlas tiles in the list of atlas tiles; and
for each atlas tile of the list:
a size; and
a location within the atlas tile for each patch packed in the atlas tile; and
encoding the list of atlas tiles and generated metadata in a data stream.

### Claim 5 (depends on 4)

The device of claim 4, wherein the indication on whether the volumetric scene is formatted as a list of atlas tiles is a size of a main atlas set to zero.

### Claim 6 (depends on 4)

The device of claim 4, wherein the list of atlas tiles' video component interleaves attribute atlas tiles' video component and depth atlas tiles' video component.

### Claim 7

A method for decoding a volumetric scene from a data stream; the method comprising:
decoding metadata from the data stream, the metadata comprising:
an indication whether the volumetric scene is formatted as a list of atlas tiles;
information indicating a number of atlas tiles in the list of atlas tiles; and
for each atlas tile of the list:
a size; and
a location within the atlas tile for each patch packed in the atlas tile; and
decoding the list of atlas tiles from the data stream according to the metadata.

### Claim 8 (depends on 7)

The method of claim 7, wherein the indication on whether the volumetric scene is formatted as a list of atlas tiles is a size of a main atlas set to zero.

### Claim 9 (depends on 7)

The method of claim 7, wherein the list of atlas tiles' video component interleaves attribute atlas tiles' video component and depth atlas tiles' video component.

### Claim 10

A device for decoding a volumetric scene from a data stream and comprising a memory associated with a processor configured for:
decoding metadata from the data stream, the metadata comprising:
an indication whether the volumetric scene is formatted as a list of atlas tiles;
information indicating a number of atlas tiles in the list of atlas tiles; and
for each atlas tile of the list:
a size; and
a location within the atlas tile for each patch packed in the atlas tile; and
decoding the list of atlas tiles from the data stream according to the metadata.

### Claim 11 (depends on 10)

The device of claim 10, wherein the indication on whether the volumetric scene is formatted as a list of atlas tiles is a size of a main atlas set to zero.

### Claim 12 (depends on 10)

The device of claim 10, wherein the list of atlas tiles' video component interleaves attribute atlas tiles' video component and depth atlas tiles' video component.

### Claim 13

A non-transitory readable medium carrying data representative of a volumetric scene and comprising:
metadata comprising:
an indication whether the volumetric scene is formatted as a list of atlas tiles;
a number of atlas tiles in the list of atlas tiles; and
for each atlas tile of the list:
a size;
a location within the atlas tile for each patch packed in the atlas tile; and
the list of atlas tiles.

### Claim 14 (depends on 13)

The non-transitory readable medium of claim 13, wherein the indication whether the volumetric scene is formatted as a list of atlas tiles is a size of a main atlas set to zero.

### Claim 15 (depends on 13)

The non-transitory readable medium of claim 13, wherein the list of atlas tiles' video component interleaves attribute atlas tiles' video component and depth atlas tiles' video component.