ISO/IEC 24800-3:2010/Cor 1:2012

Overview

ISO/IEC 24800-3:2010/Cor 1:2012 is a Technical Corrigendum issued by the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC) to update Part 3 of the JPSearch series. This standard pertains to Information Technology with a focus on the JPSearch Query Format (JPQF)-a framework designed for querying metadata and content related to still images. The corrigendum refines definitions, disables certain query and datatype functionalities, and clarifies the schema and tools associated with the query format.

This update ensures clearer interoperability within the JPSearch architecture, emphasizing still image queries and streamlining query tools to better suit their intended domain while maintaining compatibility with related MPEG standards.

Key Topics

• JPSearch Architecture Layers
  The architecture is structured into four key layers to modularize functionality:

  • User Layer: Manages user identifiers, personalization, history, and post-search evaluation.
  • Query Layer: Handles query expansion and schema or metadata conversion.
  • Management Layer: Supports service description, discovery, selection, access control, and query distribution.
  • Content Layer: Contains the image and metadata repositories, facilitating data exchange.

• JPEG Query Format (JPQF) and MPEG Query Format (MPQF)
  JPQF is defined as a subset of MPQF tools from ISO/IEC 15938-12, adapted exclusively for still images. It supports both input queries and output results across all JPSearch layers, enabling distributed implementation and maintenance.

• Schema Conventions and Structure
  The corrigendum updates the XML schema definitions governing query syntax, including namespace declarations and element formulations to ensure uniformity in query construction and processing.

• Disabled Queries and Datatypes
  To maintain focus on image-based queries, the corrigendum disables or restricts certain query types and datatypes from the original MPEG query format, such as:

  • Disabling TemporalQuery completely.
  • Restricting QueryByMedia to image-only media types.
  • Disabling temporal regions in QueryByROI.
  • Limiting mimeType usage to still images or text only.

Applications

ISO/IEC 24800-3's Technical Corrigendum 1 enhances practical applications around:

• Digital Image Libraries and Repositories
  Facilitates efficient metadata-driven search and retrieval of still images by standardizing query formats and communication across different system components.

• Multimedia Content Management Systems
  Supports distributed system architectures allowing flexible integration of user queries, management tools, and content layers while ensuring interoperability.

• Image Search Engines and Services
  Provides robust querying capabilities tailored for still images that can be used by developers and organizations building advanced search platforms with personalized user interaction.

• Service Discovery and Query Management
  Enables service-oriented architectures where discovery, selection, and management of image query services follow a standardized approach.

Related Standards

• ISO/IEC 24800 Series
  The larger standard series covers various aspects of JPSearch including indexing, metadata management, and query handling.

• ISO/IEC 15938-12:2008 (MPEG Query Format - MPQF)
  JPQF is a specialized subset of this multimedia query standard addressing image search specifically.

• W3C XML Schema Definition
  The corrigendum references XML schema standards for data modeling and query syntax validation.

Keywords: ISO/IEC 24800-3, JPSearch, JPEG Query Format, JPQF, MPEG Query Format, MPQF, image query format, metadata search, ISO corrigendum, digital image retrieval, multimedia query standards, XML schema, query input/output, still image search, distributed query system