基于多个TIP模型的虚拟场景平滑过渡  

Smooth Transition of Virtual Scene Based on Multi TIP Models

作　　者：张桦[1] 孙济洲[1] 尤德祥[2] 冯希筠[2] 

机构地区：[1]天津大学计算机科学与技术学院,天津300072 [2]天津理工大学计算机科学与技术学院,天津300191

出　　处：《光电子．激光》2007年第8期996-998,1002,共4页Journal of Optoelectronics·Laser

基　　金：天津市自然科学基金面上项目资助(033600211)

摘　　要：给出了一种实现长距离虚拟场景平滑过渡的新方法。首先基于小波变换对场景照片序列进行融合处理,然后对融合后的图像建立蜘蛛网格模型TIP;再利用投影几何原理无缝连接各个TIP模型,最后实现三维虚拟场景的渲染。实验结果表明,该方法有效克服基于单幅图像TIP建立的虚拟场景对漫游长度的局限性,可以实现三维场景的平滑纵深漫游。A new approach for long distance virtual scene smooth transition is developed. Firstly,the scene pictures were processed based on wavelet transform image fusion. Then a TIP model for each fusion image was given,and the models were linked seamlessly by principle of projective geometry,and the coherent 3D virtual scene was rendered at last.. The experiment result shows that this method eliminates the limit on the tour length of virtual scene in that of single TIP,and can make the tour into long virtual scene smoothly.

关 键 词：画中游(TIP)模型 蜘蛛网格(spidery mesh)模型 图像融合 平滑连接 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]