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Method and apparatus for storing and signaling sub-sample entry descriptions

A technique of sub-samples and samples, applied in the field of volumetric video coding and decoding, which can solve clear and undefined problems

Pending Publication Date: 2022-07-12
NOKIA TECH OY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no well-defined, efficient and standardized storage and signaling mechanism for these streams

Method used

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  • Method and apparatus for storing and signaling sub-sample entry descriptions
  • Method and apparatus for storing and signaling sub-sample entry descriptions
  • Method and apparatus for storing and signaling sub-sample entry descriptions

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Embodiment Construction

[0025] Some embodiments will now be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all, embodiments of the invention are shown. Indeed, various embodiments of the invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will satisfy applicable legal requirements. The same reference numbers refer to the same elements throughout. As used herein, the terms "data," "content," "information," and similar terms are used interchangeably to refer to data capable of being sent, received, and / or stored in accordance with embodiments of the present invention. Therefore, use of any such terms should not be taken to limit the spirit and scope of embodiments of the present invention.

[0026] Furthermore, as used herein, the term "circuit" refers to: (a) a hardware circuit implementation only (eg, an impleme...

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Abstract

Methods, apparatuses, and computer program products for signaling and storing compressed point clouds are described. Subsample entries associated with a sequence of subsamples within a sequence of samples may indicate whether the sequence of subsamples is individually encapsulated in a track without other subsamples or additional header data. Subsample entry types may be indexed at a track-level subsample description box. The point cloud compression coded bitstream component types may be signaled by including corresponding point cloud unit header information in fields related to codec-specific parameters of a track level subsample description box. The subsample information box may indicate a subsample entry index for a corresponding subsample. A flag in such an information box may indicate the presence of a sub-sample description entry index. The description index box may contain a sub-sample description entry index in the same container as the sub-sample information box. The track segment header frame may include a sub-sample description entry index applied to samples of the track segment.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS [0002] This application claims US Provisional Patent Application No. 62 / 909,259 (entitled "Method and Apparatus for Storage and Signaling of Subsample Entry Descriptions in ISOBMFF"), filed on October 2, 2019 Sub-Sample Entry Descriptions in ISOBMFF)"), the entire disclosure of this application is hereby incorporated by reference in its entirety for all purposes. technical field [0003] Example embodiments relate generally to volumetric video encoding and decoding. Background technique [0004] Volumetric video data represents three-dimensional scenes or objects and can be used as input for augmented reality (AR), virtual reality (VR), and mixed reality (MR) applications. Such data describe geometry (shape, size, position in three-dimensional (3D) space) and corresponding properties (eg, color, opacity, reflectivity, etc.), and the geometry and properties at a given time instance (eg, Temporal variation of a frame in a two-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/597H04N19/70H04N21/854H04N21/845H04N21/235H04N13/161
CPCH04N19/597H04N19/70H04N21/854H04N21/2362H04N19/20H04N19/136H04N19/115H04N19/184
Inventor E·B·阿克苏M·汉努克塞拉
Owner NOKIA TECH OY
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