Abstract
Taking automobile design as a study case, this paper presents the approaches to implement a distributed image-based virtual prototyping (VP) system employing distributed virtual reality (DVR) technology combined with image-based rendering (IBR) technology. Firstly, the methods to implement an image-based closed spherical space are presented, which can be used to construct a photo-quality virtual prototype; secondly, the novel vision sensitivity-based rendering tactic and the relevant image cubic-spline interpolation methods, which visibly improve the efficiency of rendering, is represented. Finally, a distributed image-based virtual prototyping system is implemented, by which a product designer can easily and rapidly construct a photo-quality virtual prototype and distribute it on the Internet, whereby buyers can visually understand whether or not the product can meet their individual requirements. This system enables buyers and designers to visually evaluate and discuss the design remotely, which has consequently improved the design efficiency greatly and lowered the cost substantially.
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