US 2023/0143601 A1 · A METHOD AND APPARATUS FOR ENCODING AND DECODING VOLUMETRIC VIDEO

Abstract

Methods, devices and stream are disclosed to encode and decode a scene (such as a point cloud) in the context of a patch-based transmission of a volumetric video content. The present principles relate a method of dividing an atlas image in regions, a region being associated with a sector of the space of the scene and packing patches obtained by projecting points comprised in the associated sector only. The atlas and related metadata are encoded in a data stream; At the rendering, a set of sectors is selected based on the current field of the user. Only pixels of regions associated with the selected sectors are accessed to generate the viewport image representative of the scene viewed from the current point of view.

Claims20

Dependent claims

A method comprising:

obtaining an image divided in regions, from a data stream comprising metadata associating each region of the image with a sector of the space of a scene;
selecting at least one sector according to a field of view in said space of the scene;
and
generating a viewport image of the scene for the field of view by accessing pixels of regions of the image associated with the selected at least one sector in the metadata.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

17/912,754Filed 24 Mar 2021

Priority

EP 20315057.826 Mar 2020

Published

11 May 2023

Term ends

Not estimatedThe source records don’t support an estimate.

Classification8 codes

H04N 19/597
Using predictive coding: specially adapted for multi-view video sequence encoding
G06T 7/11
Segmentation; Edge detection: region-based segmentation
H04N 13/388
Image reproducers: volumetric displays, i.e. systems where the image is built up from picture elements distributed through a volume
H04N 19/119
Characterised by the element, parameter or selection affected or controlled by the adaptive coding: adaptive subdivision aspects, e.g. subdivision…

A method and apparatus for encoding and decoding volumetric video

Life of this patent

A method and apparatus for encoding and decoding volumetric video

Life of this patent

Abstract

Claims20