标准摘要
[中文适用范围]： 该国际标准指定了 MPEG-4 动画框架扩展 (AFX) 模型，用于通过组合自然和合成对象来创建交互式多媒体内容。 在此模型中，MPEG-4 通过几何、纹理和动画的更高级别合成对象以及专用压缩表示进行了扩展。 AFX 还指定了一个反向通道，用于渐进式流式传输与视图相关的信息。 [外文原描述]： 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.
英文名称Information technology - Coding of audio-visual objects - Part 16: Animation Framework eXtension (AFX)