ISO/IEC 15938-5:2003 PDF
Information technology — Multimedia content description interface — Part 5: Multimedia description schemes
Information technology — Multimedia content description interface — Part 5: Multimedia description schemes
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 730
- Дата публикации:
- 23 мая 2003 г.
- Издание:
- ISO/IEC IS 15938 edition 1 version 1
- ICS:
- 35.040
ISO/IEC 15938-5:2003 specifies a metadata system for describing multimedia content. ISO/IEC 15938-5:2003 specifies the Multimedia Description Schemes (MDS) description tools (Description Schemes, Descriptors, and datatypes) that comprise ISO/IEC 15938-5:2003 by specifying the normative syntax of each description tool using Description Definition Language (DDL) (see ISO/IEC 15938-2) and the normative semantics including semantics of each component of each description tool (attributes and elements). ISO/IEC 15938-5:2003 also provides informative examples that illustrate the instantiation of description tools in creating descriptions conforming to ISO/IEC 15938-5:2003. ISO/IEC 15938-5:2003 defines the following basic elements: schema tools (the root element, top-level types, description metadata, and packages), basic datatypes (integers, reals, vectors, matrices), linking and media localization tools (spatial and temporal localization), basic description tools (language, text, classification schemes). ISO/IEC 15938-5:2003 defines the following content description tools, which describe the features of the multimedia content and the immutable metadata related to the multimedia content: structure description tools (spatio-temporal segments of multimedia content) and semantic description tools ("real-world" semantics related to or captured by the multimedia content, including objects, events, concepts, and so forth). ISO/IEC 15938-5:2003 defines additionally the following description tools for content metadata: media description (storage format, encoding), creation and production (title, creator, classification, purpose), and usage (access rights, publication). The content description and metadata tools are related in the sense that the content description tools use the content metadata tools. For example, a description of creation and production or media information can be attached to an individual video or video segment in order to describe the structure and creation and production of the multimedia content. ISO/IEC 15938-5:2003 also defines description tools for navigation and access (browsing, summarization), content organization (collections and models), and user interaction (user preferences pertaining to consumption of multimedia and usage history). Finally, ISO/IEC 15938-5:2003 defines classification schemes, which organize terms that are used by the description tools.
Abstract
Overview
ISO/IEC 15938-5:2003 - part of the MPEG‑7 family - specifies the Multimedia Description Schemes (MDS) used to describe multimedia content. The standard defines the normative syntax (using the Description Definition Language, see ISO/IEC 15938-2) and semantics for description tools: Description Schemes (DS), Descriptors (D) and datatypes. It also provides informative examples showing how to instantiate these tools to create interoperable multimedia metadata.
Keywords: ISO/IEC 15938-5:2003, MPEG-7, multimedia metadata, Description Schemes, DDL, multimedia content description interface
Key topics and technical requirements
- Schema tools and root element: framework for packaging and top-level types to compose descriptions.
- Basic datatypes: integers, reals, vectors, matrices, probability and string types for structured metadata.
- Linking & localization: unique identifiers, references, spatial and temporal localization for media segments.
- Basic description tools: language IDs, textual annotation, classification schemes, agent/place descriptions, ordering and relations.
- Content description tools:
- Structure description: spatio‑temporal segmentation and segment attributes for video/audio/ink and mixed media.
- Semantic description: entities, attributes and relations that capture “real‑world” semantics (objects, events, concepts).
- Content metadata: media format/encoding, creation & production metadata (title, creator, purpose), and usage (access rights, publication).
- Navigation & access: summarization, browsing views, partitions and content variations to support efficient retrieval.
- Content organization & user interaction: collections, models, user preferences and usage history.
- Normative syntax & semantics: all DS/D/DATATYPES are defined using DDL and include formal semantics; informative examples illustrate instantiation.
Practical applications and users
ISO/IEC 15938-5:2003 is for practitioners who need standardized, machine‑readable metadata for multimedia:
- Multimedia application developers (search, recommendation, playback) implementing MPEG‑7 metadata.
- Digital asset management & archives that require rich, structured descriptions for indexing and retrieval.
- Broadcasting and production houses tagging segments, versions and production metadata.
- Researchers in content‑based retrieval and semantic annotation using standardized descriptors and datatypes.
- Standards implementers and testers building conformance tools and reference software.
Benefits include interoperable metadata, precise segment localization, and a reusable library of description tools for consistent content discovery and rights/usage management.
Related standards
- ISO/IEC 15938 (MPEG‑7) Parts 1–4, 6–8 (Systems, DDL, Visual, Audio, Reference software, Conformance testing, Extraction/use).
- ISO/IEC 15938-2 for the Description Definition Language (DDL) used to define MDS elements.
Технические детали
- Технический комитет
- ISO/IEC JTC 1/SC 29 - Coding of audio, picture, multimedia and hypermedia information
- SKU
- ISO/IEC 15938-5:2003
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