Yanning Xu

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Progressive photon mapping [Hachisuka et al. 2008] (PPM) obtains increasingly accurate results with progressive visualization, but it is problematic when results are obtained through thousands of iterations. An uniform photon distribution is critical for the accurate result. In this work, we use the sample elimination [Yuksel 2015] (SE) in PPM to achieve(More)
Product assembly design is a complex activity possible involving collaboration between different designers geographically dispersed. This paper puts forward some significant methodologies and technologies for distributed assembly and presents a collaboration architecture that manages to support working in both synchronous and asynchronous ways. Meanwhile,(More)
Product assembly design is a complex design activity which may involve collaboration among designers geographically distributed. And the development of virtual reality applications for assembly design can provide designers with a more realistic environment to evaluate their assembly process. We create a web-based virtual environment supporting designers(More)