边界光场  

Boundary Light Fields

作　　者：梅春晖[1] 石教英[1] 

机构地区：[1]浙江大学CAD&CG国家重点实验室,杭州310027

出　　处：《计算机辅助设计与图形学学报》2003年第8期972-978,共7页Journal of Computer-Aided Design & Computer Graphics

基　　金：国家自然科学基金重点项目 (60 0 3 3 0 10 );国家创新群体科学基金(60 0 2 12 0 1)资助

摘　　要：提出一种新的基于图像的绘制方法———边界光场 该方法基于 3D全光函数的思想 ,并使之与场景几何相结合 该方法克服了已有的IBR漫游系统的一些缺陷 ,利用自适应的的全光采样模式 ,根据场景复杂度或用户要求组织采样数据 ,降低了场景数据量 ;由于场景几何的参与 ,纠正了较大的深度变形 ;新的采样数据组织模式去除了对漫游范围的限制A new approach to IBR technique is presented based on 3D plenoptic function and utilizing the approximate scene geometry model Through introducing planar geometric boundary of scene, our approach shows some merits in comparison with previous similar rendering techniques It can sample the ray set in an adaptive way according to the scene complexity or special user demands, thus reducing the plenoptic sampling data effectively without degeneration of rendering quality; it restricts the vertical distortion to an acceptable limit with correct scene depth; and by arranging the ray set focusing on scene objects, an arbitrary sampling track can be used, which can allow observer move freely at will Boundary light fields is a simple IBR technique, can be easily employed in walkthrough system of synthetic or real scene

关 键 词：图像绘制 边界光场 漫游系统 图像建模 计算机图形学 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]