Information technology - Plenoptic image coding system (JPEG Pleno) - Part 2: Light field coding - Amendment 1: Profiles and levels for JPEG Pleno light field coding system

Technologies de l'information — Système de codage d'images plénoptiques (JPEG Pleno) — Partie 2: Codages des champs de lumière — Amendement 1: Profils et niveaux pour le système de codage des champs de lumière JPEG Pleno

General Information

Status
Published
Publication Date
16-Aug-2021
Current Stage
6060 - International Standard published
Start Date
17-Aug-2021
Due Date
25-Feb-2022
Completion Date
17-Aug-2021

Relations

Effective Date
07-Jan-2025
Effective Date
29-May-2021

Overview

ISO/IEC 21794-2:2021/Amd 1:2021 is an amendment to the international standard defining the JPEG Pleno light field coding system for plenoptic image coding. This document specifies the introduction of profiles and levels for the JPEG Pleno light field coding system, enhancing interoperability and implementation clarity. The amendment targets efficient coding of complex light fields using either block-based or view-based coding modes, supporting high-quality, immersive imaging applications.

Issued by ISO and IEC, this standard amendment formalizes the structure for profile and level signaling, enabling standardized decoding and encoding of light field data. It applies to the plenoptic image coding domain within information technology and multimedia content compression.

Key Topics

  • Profiles definition
    Two core profiles are introduced for JPEG Pleno light field coding:

    • Baseline block-based profile: Uses 4D transform mode coding tools for compression.
    • Baseline view-based profile: Utilizes 4D prediction mode coding tools.
  • Levels specification
    Levels define constraints based on the maximum number of samples and block dimensions to accommodate different light field resolutions and complexities.

    • Levels specify limits such as maximum samples and maximum block size for encoding.
    • The maximum bit precision for light field samples in both profiles is set at 16 bits.
  • Profile and Level box signaling
    Encoding includes a jppl box type to signal the profile and level of the codestream, ensuring consistent interpretation across different decoders and devices.

  • Relationship to existing standards
    The Baseline view-based profile leverages ITU-T Rec. T.800 | ISO/IEC 15444-1 for coding reference and residual views, ensuring compatibility with JPEG 2000-based technologies.

Applications

  • Light Field Imaging and Rendering
    Supports capture, compression, and streaming of complex light field data for applications such as 3D imaging, holography, and free-viewpoint video.

  • Virtual and Augmented Reality
    Enables efficient coding for immersive content requiring multi-view and multi-directional light field information.

  • Advanced Photography and Cinematography
    Facilitates plenoptic camera data compression, preserving depth and directional light details for post-processing and depth refocusing.

  • Multimedia Streaming and Broadcasting
    Optimizes bitrates and bandwidth in transmitting light field content over networks with standardized profiles and levels.

  • Visualization and Scientific Imaging
    Caters to applications needing precise light field data handling, such as medical imaging or computational imaging systems.

Related Standards

  • ISO/IEC 21794 series (JPEG Pleno):
    The broader series covering plenoptic image coding, including point cloud and holographic coding technologies.

  • ISO/IEC 15444-1 (JPEG 2000):
    Referenced for view-based coding tools in the baseline view-based profile.

  • ITU-T Recommendation T.800:
    Provides technical basis for image compression used in JPEG 2000, utilized in decoding elements of the light field data.

  • ISO/IEC Directives Part 1 & 2:
    Govern the development process and editorial rules for international standards applicable to this amendment.


This amendment strengthens the JPEG Pleno light field coding system framework by defining clear profiles and levels, fostering broad adoption in high-fidelity light field compression and processing. Its design supports scalable implementation across diverse multimedia and imaging technologies, crucial for advancing immersive visual experiences.

Standard

ISO/IEC 21794-2:2021/Amd 1:2021 - Information technology — Plenoptic image coding system (JPEG Pleno) — Part 2: Light field coding — Amendment 1: Profiles and levels for JPEG Pleno light field coding system Released:8/17/2021

English language
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Frequently Asked Questions

ISO/IEC 21794-2:2021/Amd 1:2021 is a standard published by the International Organization for Standardization (ISO). Its full title is "Information technology - Plenoptic image coding system (JPEG Pleno) - Part 2: Light field coding - Amendment 1: Profiles and levels for JPEG Pleno light field coding system". This standard covers: Information technology - Plenoptic image coding system (JPEG Pleno) - Part 2: Light field coding - Amendment 1: Profiles and levels for JPEG Pleno light field coding system

Information technology - Plenoptic image coding system (JPEG Pleno) - Part 2: Light field coding - Amendment 1: Profiles and levels for JPEG Pleno light field coding system

ISO/IEC 21794-2:2021/Amd 1:2021 is classified under the following ICS (International Classification for Standards) categories: 35.040.30 - Coding of graphical and photographical information. The ICS classification helps identify the subject area and facilitates finding related standards.

ISO/IEC 21794-2:2021/Amd 1:2021 has the following relationships with other standards: It is inter standard links to ISO/FDIS 10642, ISO/IEC 21794-2:2021. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

ISO/IEC 21794-2:2021/Amd 1:2021 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)


INTERNATIONAL ISO/IEC
STANDARD 21794-2
First edition
2021-04
AMENDMENT 1
2021-08
Information technology — Plenoptic
image coding system (JPEG Pleno) —
Part 2:
Light field coding
AMENDMENT 1: Profiles and levels for
JPEG Pleno light field coding system
Technologies de l'information — Système de codage d'images
plénoptiques (JPEG Pleno) —
Partie 2: Codages des champs de lumière
AMENDEMENT 1: Profils et niveaux pour le système de codage des
champs de lumière JPEG Pleno
Reference number
ISO/IEC 21794-2:2021/Amd.1:2021(E)
©
ISO/IEC 2021
ISO/IEC 21794-2:2021/Amd.1:2021(E)

© ISO/IEC 2021
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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Published in Switzerland
ii © ISO/IEC 2021 – All rights reserved

ISO/IEC 21794-2:2021/Amd.1:2021(E)

Foreword
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This document was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology,
Subcommittee SC 29, Coding of audio, picture, multimedia and hypermedia information.
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