信息技术 - 多媒体内容描述界面 - 第6部分:参考软件

[中文适用范围]： ISO/IEC 15938系列规范描述符的编码、解码及生成方式。本实施文档行为符合该标准系列的行为规范。其他符合该标准系列的实现可能采用不同的算法或编程技术。本软件包含在本文件中，称为实验模型（XM），并分为以下五类：a) MPEG-7的二进制格式（BiM）。此软件将基于XML描述转换为二进制格式及反之亦然，如第5章所述。b) DDL解析器和DDL验证解析器。本软件模块的组成部分在第6章中说明。c) 视觉描述符。此软件从关联的媒体内容创建标准视觉描述，如第7章所述。d) 音频描述符。此软件从关联的（音频）媒体内容创建标准描述，如第8章所述。e) 多媒体描述方案。本软件模块提供多媒体描述方案的标准描述，如第9章所指定的。 [外文原描述]： The ISO/IEC 15938 series operates on and generates conformant bitstreams. This document provides a specific implementation that behaves in a conformant manner. NOTE 1 Other implementations that conform to the ISO/IEC 15938 series are possible, which do not necessarily use the algorithms or the programming techniques of the reference software. The software contained in this document is known as eXperimentation Model (XM) and is divided into five categories: a) Binary format for MPEG-7 (BiM). This software converts DDL (XML) based descriptions to binary format and vice versa as explained in Clause 5. b) DDL parser and DDL validation parser. The components of this software module are specified in Clause 6. c) Visual descriptors. This software creates standard visual descriptions from associated (visual) media content as explained in Clause 7. NOTE 2 The techniques used for extracting descriptors are informative, and the quality and complexity of these extraction tools has not been optimized. d) Audio descriptors. This software creates standard descriptions from associated (audio) media content as explained in Clause 8. NOTE 3 The techniques used for extracting descriptors are informative, and the quality and complexity of these extraction tools has not been optimized. e) Multimedia description schemes. This software modules provide standard descriptions of multimedia description schemes as specified in Clause 9.