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//ISO/IEC 19566-6:2019/Amd 2:2025

ISO/IEC 19566-6:2019/Amd 2:2025

Name: ISO/IEC 19566-6:2019/Amd 2:2025 — Information technologies — JPEG systems — Part 6: JPEG 360 — Amendment 2: Revision to the equirectangular projection constraints
SKU: ISO/IEC 19566-6:2019/Amd 2:2025
Price: 3600 RUB
Availability: InStock

Information technologies — JPEG systems — Part 6: JPEG 360 — Amendment 2: Revision to the equirectangular projection constraints

Название (английский):

Information technologies — JPEG systems — Part 6: JPEG 360 — Amendment 2: Revision to the equirectangular projection constraints

Статус документа:: Отменён
Формат:: Электронный (PDF)
Количество страниц:: 2
Дата публикации:: 27 марта 2025 г.
Издание:: ISO/IEC IS 19566 edition 1 version 1
ICS:: 35.040.30

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Full version3 600 ₽Read online 24h1 200 ₽Read online 72h1 800 ₽

Язык документа:

ruen

Срок поставки:1 раб. дн. (перевод)

Цена:3 600 ₽

Abstract

Overview

ISO/IEC 19566-6:2019/Amd 2:2025 is an important amendment to the international standard governing JPEG 360 imaging technology. This standard, developed by the Joint Technical Committee ISO/IEC JTC 1, focuses on JPEG systems used for 360-degree image capture and display. The 2025 Amendment 2 updates the constraints related to the equirectangular projection model-a fundamental format for representing spherical imagery in 360-degree photography and video.

Key Topics

Equirectangular Projection Revision: The amendment replaces key mathematical definitions in the projection constraints, such as the correction from y = sinφ · sinθ to y = sinφ · cosθ, ensuring more accurate coordinate mapping in spherical image projections.
Angle Constraints: Updates to inequality conditions governing angles ϕ (phi) and θ (theta) define valid ranges for compass heading and elevation in spherical projections, improving robustness in image rendering.
Metadata Schema Enhancements:
- Removal of the deprecated “CompassTheta” entry.
- Addition of a new “Stereoscopic Format” metadata descriptor supporting formats like ‘side-by-side’, ‘top-bottom’, and ‘extended’, crucial for 3D 360-degree image applications.
XMP Expression Updates: Changes to XMP packet identifiers for image metadata ensure compliance with the latest standards for embedded metadata within JPEG 360 files.
MediaType Standardization: Standardized metadata declarations require specifying the media type as image/jpeg, promoting consistency and easier media handling.
Required Metadata Values: Amendments emphasize mandatory metadata values, improving metadata completeness and compatibility across implementations.

Applications

The ISO/IEC 19566-6:2019/Amd 2:2025 standard is instrumental for industries and technologies working with immersive media that relies on spherical imaging:

360-Degree Photography and Videography: Photographers and content creators can utilize updated projection constraints for higher fidelity panoramic images and videos.
Virtual Reality (VR) and Augmented Reality (AR): Developers creating VR and AR applications benefit from improved stereoscopic support and metadata standards for seamless 3D immersive experiences.
Media Streaming and Broadcasting: Enhanced metadata and projection accuracy facilitate better streaming quality and device compatibility for 360-degree live broadcasts.
Image Processing Software: Software vendors can implement these updates to offer improved tools for editing, encoding, and decoding equirectangular 360-degree images.
Geospatial and Mapping Services: Accurate angle and projection constraints support better integration of 360-degree imagery in mapping and geospatial visualization platforms.

Related Standards

ISO/IEC 19566 Series: The broader JPEG Systems family including standards covering various JPEG-related technologies such as codestreams, metadata, and extensions for immersive media.
ISO/IEC JTC 1/SC 29: The subcommittee responsible for coding audio, picture, multimedia, and hypermedia information, under which this standard falls.
JPEG XR and JPEG XS Standards: Complementary JPEG standards offering advanced image compression technologies that may integrate with 360-degree imaging workflows.
XMP (Extensible Metadata Platform): W3C-related metadata standard referenced in this amendment for embedding metadata within images, critical for interoperability in multimedia applications.

By implementing the revisions in ISO/IEC 19566-6:2019/Amd 2:2025, organizations and developers enhance the precision, usability, and compatibility of JPEG 360 technology-ensuring immersive media continues to evolve with reliable international standards.

Технические детали

Технический комитет: ISO/IEC JTC 1/SC 29 - Coding of audio, picture, multimedia and hypermedia information
SKU: ISO/IEC 19566-6:2019/Amd 2:2025

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ISO/IEC 19566-6:2019/Amd 2:2025

Abstract

Overview

Похожие стандарты

Key Topics

Applications

Related Standards

Технические детали

ISO/ASTM51540-04(2012)

Standard Practice for Use of a Radiochromic Liquid Dosimetry System (Withdrawn 2020)

ISO/ASTM51204-04

Standard Practice for Dosimetry in Gamma Irradiation Facilities for Food Processing (Withdrawn 2013)

ISO/ASTM51431-05

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ISO/ASTM52628-20e1

Standard Practice for Dosimetry in Radiation Processing

ISO/ASTM52921-13(2019)

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ISO/ASTMTR52917-EB

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ISO/ASTM52901-17(2023)

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