Efficient Modeling of Virtual Humans in MPEG-4
نویسندگان
چکیده
This and the accompanying paper present an overview of the face and body animation object in the MPEG-4 Version 2 standard. The MPEG-4 standard includes the representation, compression of virtual human models and their interface with other MPEG-4 objects, with bitrate requirements as low as 1 Kbit/second. In this paper we give an overview of geometrical modeling techniques for the FBA object, and in the accompanying paper we describe the animation techniques.
منابع مشابه
Adaptation of virtual human animation and representation for MPEG
While level of detail (LoD) methods for the representation of 3D models are efficient and established tools to manage the trade-off between speed and quality of the rendering, LoD for animation has not yet been intensively studied by the community, and especially virtual humans animation has not been focused in the past. Animation, a major step for immersive and credible virtual environments, i...
متن کاملAdaptation of Facial and Body Animation for MPEG-based Architectures
While level of detail (LoD) methods for the representation of 3D models are efficient and established tools to manage the trade-off between speed and quality of the rendering, LoD for animation has not yet been intensively studied by the community, and especially virtual humans animation has not been focused in the past. Animation, a major step for immersive and credible virtual environments, i...
متن کاملCritic review on MPEG-4 face and body animation
The MPEG-4 Face and Body Animation (FBA) specifications aims at standardizing an interchange format for specifying virtual face and body modeling and related animation parameters. The scene graph concept, the FBA nodes, semantics and representation of the animation parameters as well as compression and streaming capabilities are successively addressed. The compatibility between virtual characte...
متن کاملVery Low Bitrate Coding of Virtual Human Animation in MPEG-4
This and the accompanying paper present an overview of the face and body animation object in the MPEG-4 Version 2 standard. The MPEG-4 standard includes the representation, compression of virtual human models and their interface with other MPEG-4 objects, with bit rate requirements as low as 1 Kbit/second. In this paper, we give an overview of animation techniques for the FBA object, and in the...
متن کاملModel Dependent Power Aware Compression Algorithms for MPEG-4 Virtual Human Animation in Mobile Computers
MPEG-4 Body Animation Parameters (BAPs) are used for animation of MPEG-4 compliant virtual human-like characters. Distributed virtual reality applications and networked games on mobile computers require access to locally stored or streamed compressed BAP data. Existing MPEG-4 BAP compression techniques are inefficient for streaming, or storing, BAP data on mobile computers, because (a) MPEG-4 c...
متن کامل