Real-time rendering algorithm based on a hybrid rendering scheme  

作　　者：郑文庭 鲍虎军 彭群生 孙汉秋 

机构地区：[1]State Key Laboratory of CAD&CG, Zhejiang University, Hangzhou, 310027, China [2]The Chinese University of HongKong, HongKong, China

出　　处：《Progress in Natural Science:Materials International》2000年第2期63-68,83,共7页自然科学进展·国际材料（英文版）

基　　金：Project supported jointly by Huo Yingdong Young Teacher Foundation and the National Natural Science Foundation of China (Grant No. 69673027).

摘　　要：A real-time rendering algorithm based on a hybrid rendering scheme is presented. The key frames of the virtual scene are generated with a geometry-based approach, then a non-linear transformation to all visible points of each frame near the current viewpoint is performed to reveal their coplanar characteristics and a hierarchical polygon approximation of the local scene is set up. Any intermediate image between the two key frames could be obtained by re-projecting these polygons onto the view plane related to the current viewpoint. The gaps that might appear on the intermediate image are filled through bi-directional backward image warping. Experimental results show that our approach is insensitive to the complexity of the scene and has a satisfactory performance.A real-time rendering algorithm based on a hybrid rendering scheme is presented. The key frames of the virtual scene are generated with a geometry-based approach, then a non-linear transformation to all visible points of each frame near the current viewpoint is performed to reveal their coplanar characteristics and a hierarchical polygon approximation of the local scene is set up. Any intermediate image between the two key frames could be obtained by re-projecting these polygons onto the view plane related to the current viewpoint. The gaps that might appear on the intermediate image are filled through bi-directional backward image warping. Experimental results show that our approach is insensitive to the complexity of the scene and has a satisfactory performance.

关 键 词：VIRTUAL REALITY IMAGE-BASED RENDERING level of DETAIL TEXTURE mapping. 

分 类 号：TP391.72[自动化与计算机技术—计算机应用技术]