ISO/IEC 14496-16:2006 信息技术 音频-可视对象的编码 第16部分:动画框架扩展(AFX)

标准编号:ISO/IEC 14496-16:2006

中文名称:信息技术 音频-可视对象的编码 第16部分:动画框架扩展(AFX)

英文名称:Information technology — Coding of audio-visual objects — Part 16: Animation Framework eXtension (AFX)

发布日期:2006-12

标准范围

ISO/IEC 14496-16:2006规定了用于表示3D图形内容的MPEG-4动画框架扩展(AFX)模型。在这个模型中,MPEG-4扩展了更高级别的合成对象,用于指定几何体、纹理和动画,以及专用的压缩算法。几何工具包括非均匀有理B样条(NURBS)、细分曲面、网格、变形空间和基于隐式方程的实体表示。纹理工具包括基于深度图像的表示和多纹理。动画工具是指用于蒙皮模型的非线性变形器和基于骨骼的动画。AFX还指定3D图形压缩工具的配置文件和级别,以及3D内容的编码参数。此外,AFX还指定了一个反向通道,用于渐进式传输与视图相关的信息。

ISO/IEC 14496-16:2006 specifies MPEG-4 Animation Framework eXtension (AFX) model for representing 3D Graphics content. Within this model, MPEG-4 is extended with higher-level synthetic objects for specifying geometry, texture, and animation as well as dedicated compression algorithms. The geometry tools include Non Uniform Rational B-Splines (NURBS), Subdivision Surfaces, Mesh Grid, Morphing Space and Solid Representation based on implicit equations. The texture tools include Depth-Image based Representation and MultiTexturing. The animation tools refer to Non-Linear Deformers and Bone-based Animation for skinned models.AFX also specifies profiles and levels for 3D Graphics Compression tools and the encoding parameters for 3D content. In addition, AFX specifies a backchannel for progressive streaming of view-dependent information.

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