ISO/IEC 19566-6:2019/Amd 1:2021
(Amendment)Information technologies - JPEG systems - Part 6: JPEG 360 - Amendment 1: Addition of new JPEG 360 image types and accelerated ROI rendering
Information technologies - JPEG systems - Part 6: JPEG 360 - Amendment 1: Addition of new JPEG 360 image types and accelerated ROI rendering
Technologies de l'information — Systèmes JPEG — Partie 6: JPEG 360 — Amendement 1: Titre manque
General Information
- Status
- Published
- Publication Date
- 28-Jun-2021
- Current Stage
- 6060 - International Standard published
- Start Date
- 29-Jun-2021
- Due Date
- 08-May-2022
- Completion Date
- 29-Jun-2021
Relations
- Effective Date
- 24-Jul-2021
- Effective Date
- 08-Feb-2025
Overview
ISO/IEC 19566-6:2019/Amd 1:2021 is an important amendment to the ISO/IEC standard for JPEG systems, specifically Part 6 which focuses on JPEG 360. This amendment introduces new JPEG 360 image types, including stereoscopic 360 images, and enhances rendering capabilities by adding accelerated Region of Interest (ROI) viewport rendering. Developed by the Joint Technical Committee ISO/IEC JTC 1, Subcommittee SC 29, this update aims to improve immersive imaging technologies by supporting advanced 360-degree stereoscopic formats and efficient, low-latency viewport transmission.
Key Topics
Addition of New JPEG 360 Image Types
The amendment specifies the inclusion of stereoscopic 360 images as a new image type, enabling immersive three-dimensional experiences by supporting left and right eye image pairs. These stereoscopic images are stored in three distinct formats:- Side-by-side: Horizontally packed left- and right-eye images
- Top-bottom: Vertically packed left- and right-eye images
- Extended: One image stores stereoscopic scene metadata while referencing the other eye's image, allowing backward compatibility and efficient management.
Accelerated ROI Viewport Rendering
To enhance user experience, the amendment mandates accelerated viewport rendering that facilitates efficient and low-latency delivery of specific regions within the 360-degree images. This supports interactive applications such as virtual reality (VR), head-mounted displays, and online streaming platforms by improving rendering speed and responsiveness.Stereoscopic Vision Model for Viewports
The amendment defines a stereo vision model to accurately map viewports on both left and right eye images based on field of view (FOV) parameters. This approach models the human visual system more naturally, ensuring realistic depth perception in stereoscopic 360 content.Metadata Enhancements
Updated XMP metadata expressions integrate JPEG 360-specific schemas, supporting detailed descriptions of image and viewport parameters such as projection type, field of view boundaries, and references to JPEG codestream boxes. These metadata structures enable interoperability and facilitate advanced image processing workflows.
Applications
The standard amendment directly benefits several practical domains:
Virtual Reality and Augmented Reality
Enhanced stereoscopic 360 support improves depth perception and immersion in VR headsets and AR devices, offering more realistic user experiences with low-latency viewport rendering.Panoramic and Immersive Photography
Photographers and content creators gain new options for stereoscopic panorama formats, providing viewers with enhanced three-dimensional visuals compatible with existing JPEG infrastructure.Streaming and Broadcasting
Efficient ROI rendering reduces bandwidth consumption by transmitting only regions of interest within a 360 image, enabling smoother streaming of immersive content on constrained networks.3D Media Authoring and Playback Tools
Software developers benefit from standardized stereoscopic formats and metadata models, simplifying implementation of stereoscopic 360 image capture, editing, and playback capabilities.
Related Standards
- ISO/IEC 19566-5: JPEG Universal Metadata Box Format (JUMBF) – Vital for referencing and embedding metadata within JPEG 360 files, especially in the extended stereoscopic format.
- ISO/IEC 19566 Series: Other parts focus on various aspects of JPEG systems including coding, metadata, and content types ensuring cohesive integration across JPEG standards.
- XMP (Extensible Metadata Platform): Adobe XMP framework used within JPEG 360 metadata for describing image properties and viewport configurations.
ISO/IEC 19566-6:2019/Amd 1:2021 represents a significant advancement in JPEG 360 technology by enhancing stereoscopic image support and optimizing rendering strategies. This enables next-generation immersive experiences that are efficient, interoperable, and compatible with both current and emerging viewing platforms. For developers and content creators working with 360-degree media, adherence to this amendment ensures cutting-edge image quality and performance in immersive environments.
Frequently Asked Questions
ISO/IEC 19566-6:2019/Amd 1:2021 is a standard published by the International Organization for Standardization (ISO). Its full title is "Information technologies - JPEG systems - Part 6: JPEG 360 - Amendment 1: Addition of new JPEG 360 image types and accelerated ROI rendering". This standard covers: Information technologies - JPEG systems - Part 6: JPEG 360 - Amendment 1: Addition of new JPEG 360 image types and accelerated ROI rendering
Information technologies - JPEG systems - Part 6: JPEG 360 - Amendment 1: Addition of new JPEG 360 image types and accelerated ROI rendering
ISO/IEC 19566-6:2019/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 19566-6:2019/Amd 1:2021 has the following relationships with other standards: It is inter standard links to ISO/IEC 19566-6:2019, ISO/IEC 19566-6. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ISO/IEC 19566-6:2019/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 19566-6
First edition
2019-07
AMENDMENT 1
2021-06
Information technologies — JPEG
systems —
Part 6:
JPEG 360
AMENDMENT 1: Addition of new JPEG
360 image types and accelerated ROI
rendering
Technologies de l'information — Systèmes JPEG JPEG 360 —
Partie 6: JPEG 360
AMENDEMENT 1
Reference number
ISO/IEC 19566-6:2019/Amd.1:2021(E)
©
ISO/IEC 2021
ISO/IEC 19566-6:2019/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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Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO/IEC 2021 – All rights reserved
ISO/IEC 19566-6:2019/Amd.1:2021(E)
Foreword
ISO (the International Organization for Standardization) and IEC (the International Electrotechnical
Commission) form the specialized system for worldwide standardization. National bodies that are
members of ISO or IEC participate in the development of International Standards through technical
committees established by the respective organization to deal with particular fields of technical
activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other international
organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the
work.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for
the different types of document should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives or www .iec .ch/ members
_experts/ refdocs).
Attention is drawn to the possibility that some of the elements of this document may be the subject
of patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent
rights. Details of any patent rights identified during the development of the document will be in the
Introduction and/or on the ISO list of patent declarations received (see www .iso .org/ patents) or the IEC
list of patent declarations received (see patents.iec.ch).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/
iso/ foreword .html. In the IEC, see www .iec .ch/ understanding -standards.
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.
A list of all parts in the ISO/IEC 19566 series can be found on the ISO and IEC websites.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/ members .html and www .iec .ch/ national
-committees.
© ISO/IEC 2021 – All rights reserved iii
ISO/IEC 19566-6:2019/Amd.1:2021(E)
Information technologies — JPEG systems —
Part 6:
JPEG 360
AMENDMENT 1: Addition of new JPEG 360 image types and
accelerated ROI rendering
3.2
Add the following abbreviations terms:
FOV field of view
URI uniform resource identifier
5.3
Add a new paragraph at the end of clause 5.3 as follows:
In addition, an accelerated viewport rendering to support an efficient and low latency viewport
transmission shall be done as defined in Annex C.
5.4
Renumber subclause 5.4 as 5.5 and add a new subclause 5.4 as follows:
5.4 Stereoscopic 360 image
5.4.1 General
A stereoscopic 360 image is a pair that consists of two images of the same scene or object but a slightly
different angle or perspective for the left and right eye. Each pair should be an image with an ERP
format. This pair is stored in three formats for JPEG 360 in addition to an existing monoscopic format
which provides the only single view.
5.4.2 Stereoscopic formats
The stereoscopic format indicates an arrangement of the left and right images. This subclause defines
three formats for organizing the pair of the stereoscopic 360 images as follows.
— Side-by-side: left- and right-eye images are packed horizontally.
© ISO/IEC 2021 – All rights reserved 1
ISO/IEC 19566-6:2019/Amd.1:2021(E)
a) Structure
b) Example of the format
Figure 11 — Side-by-side format
— Top-bottom: left- and right-eye images are packed vertically.
a) Structure b) Example of the format
Figure 12 — Top-bottom format
— Extended: one of the left- and right-eye images is stored in the form of a JPEG image, which contains
the metadata required to construct a stereoscopic scene. The metadata includes information that
identifies the location of the remaining image in both eyes. Figure 13 shows an example of the
extended format. Although this example shows the right-eye image is contained in the same JPEG
image file, the right-eye image may be referenced externally as a different JPEG image file, as per
ISO/IEC 19566-5.
2 © ISO/IEC 2021 – All rights reserved
ISO/IEC 19566-6:2019/Amd.1:2021(E)
Figure 13 — Example of the extended format
5.4.3 Viewport definition in the stereo vision model
Key
a centre of the baseline f sphere
b left eye g left 360-degree image
c right eye h viewport mapped on the left image
d baseline i viewport mapped on the right image
e viewport j right 360-degree image
Figure 14 — Viewport definition in the stereo vision model
Figure 14 illustrates the stereo vision model used for stereoscopic 360 images and how a viewport is
organized. The viewport is a rectangular sub-region of the sphere specified by the FOV span values
from the centre of the sphere that is supposed to be the centre of the two eyes in the model.
In this model, P, which is a point on the sphere with Cartesian coordinate, is mapped on to the left
and right images, P and P , differently depending on the configuration of the capture devices. This
L R
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ISO/IEC 19566-6:2019/Amd.1:2021(E)
allows the human visual system to perceive the point P more realistically when left and right images
are projected on both eyes, respectively. In this case, the viewports for both eyes are not necessarily
defined for the left and right eyes separately but can be defined by the viewing direction from the centre
of both eyes. Therefore, the viewport is specified by the FOV span values at the centre of the sphere that
is considered as the centre of the two eyes in the model.
5.4.4 Compatible with a conventional 360 image viewer
An interaction modality, such as a head-mounted display, is able to present a stereoscopic scene while
a conventional 360 image viewer may parse only monoscopic JPEG 360 image and present a viewport.
However, when the conventional viewer loads the stereoscopic JPEG 360 image file, it is possible
to extract the left- or right-eye image from the file based on the metadata embedded in the file then
present it to the viewer.
Furthermore, when the stereoscopic JPEG 360 image is an extended format, the conventional viewer will
display one of the left- and right-eye images without additional processing. This follows the backward
compatible mechanism, as described in subclause 5.2, which allows that an image is decoded when the
file is opened by conventional JPEG viewing applications.
6.1
Change the number of Figure 11 to 15.
B.2
Replace the meaning of the BoxReference in Table B.1 with the following:
Refers to a label for either a JUMBF Codestream Content Type box or a JUMBF Embedded File Content
Type box, as per ISO/IEC 19566-5.
B.7
Replace the XMP expression with the following:
xmlns:xmp="http://ns.adobe.com/xap/1.0/"
xmlns:umf="http://ns.intel.com/umf/2.0">
0
JPEG360Metadata
JPEG360ImageMetadata
JPEG360Version
integer
MediaType
string
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ISO/IEC 19566-6:2019/Amd.1:2021(E)
ProjectionType
string
PhiMin
real
PhiMax
real
ThetaMax
real
ThetaMin
real
PhiGravity
real
ThetaGravity
real
CompassPhi
real
BoxReference
string
JPEG360ViewportMetadata
JPEG360ViewportNumber
integer
ViewportPhi
real
ViewportTheta
real
ViewportPhiFOV
real
ViewportThetaFOV
real
ViewportRoll
real
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ISO/IEC 19566-6:2019/Amd.1:2021(E)
JPEG360Metadata
B.9
Replace the XMP expression with the following:
xmlns:xmp="http://ns.adobe.com/xap/1.0/" mlns:umf="http://ns.intel.com/umf/2.0">
3
JPEG360Metadata
JPEG360ImageMetadata
JPEG360Version
integer
MediaType
string
ProjectionType
string
PhiMin
real
PhiMax
real
ThetaMax
real
ThetaMin
real
6 © ISO/IEC 2021 – All rights reserved
ISO/IEC 19566-6:2019/Amd.1:2021(E)
PhiGravity
real
ThetaGravity
real
CompassPhi
real
BoxReference
string
JPEG360ViewportMetadata
JPEG360ViewportNumber
integer
ViewportPhi
real
ViewportTheta
real
ViewportPhiFOV
real
ViewportThetaFOV
real
ViewportRoll
real
JPEG360Metadata
JPEG360ImageMetadata
3
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ISO/IEC 19566-6:2019/Amd.1:2021(E)
1
JPEG360Version
image/jpeg
MediaType
Equirectangular
ProjectionType
-180
PhiMin
180
PhiMax
90
ThetaMax
...
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