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中文摘要：
在介绍虚拟现实系统位置关联、时间关联、焦距关联和虚化关联的基础上，研究了基于图像的多关联性虚拟现实系统的设计。针对虚拟场景焦距关联的需要，在考虑场景真实性和实时性的基础上，采用基于熵变分分辨率增强和线性插值相结合的方法生成任意焦距下场景对应图像；对于时间关联，采用基于颜色传输的光照变化图像生成方法，实现不同光照条件下场景图像的生成；针对场景虚化关联的需要，结合非真实感绘制技术，采用真实感全景图像和波动感虚化特效图像相结合的方法，实现超越现实时空的场景虚化关联。在此基础上，给出了多关联性虚拟现实系统的构建框架。
英文摘要：
Design and realization of multi - relationship in virtual panoramic space based on image is emphasized. Aimed at the needs of focus relationship in virtual environment, method based on entropy variation inter＇polation and linear interpolation is adopted to generate the scene image under random focus considering of the contradiction between real- time and realism. As for time relationship, scene image under different illumination is generated based on image generation method of illumination change of color transform. Then, a novel method for virtualized relationship generation in image - based rendering virtual environment using photo- realistic image and fluctuant non - photo realistic image is presented, which surpass the time and space in virtual reality system. Lastly, a framework is given for virtual reality system with multi - relationships.
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An adaptive remeshing technique based on hierarchical error estimates for simulation of semiconducto
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