与视点对应的视图插补  

View Interpolation Correspondence with Viewpoint

作　　者：吴福朝[1] 于洪川[1] 袁波[1] 韦穗 

机构地区：[1]安徽大学人工智能研究所,合肥230039

出　　处：《中国图象图形学报（A辑）》1999年第12期1034-1037,共4页Journal of Image and Graphics

基　　金：国家自然科学基金;"863"计划资助

摘　　要：Ｉｍ ａｇｅ Ｍｏｒｐｈｉｎｇ 是产生图象之间插补变换的一类被广泛使用的技术，所有的Ｍｏｒｐｈｉｎｇ 方法都是基于两幅图象之间的象素位置和颜色的内插。现行的Ｍｏｒｐｈｉｎｇ 技术不能保证所生成图象的真实性。引进视点Ｍｏｒｐｈｉｎｇ 技术，则能保持生成图象的真实性，但事先要知道源图象所对应的３Ｄ到２Ｄ的投影变换，即摄像机投影矩阵。用目前的技术，从图象获得摄像机矩阵是十分困难的，这极大地限制了视点Ｍｏｒｐｈｉｎｇ 技术的应用。本文提出的视图插补技术，使得所生成的插补图象对应于某个视点，且不需要知道源图象所对应的摄像机矩阵。Image morphing method, which is based on the pixels position and color interpolation between two images, has been widely used in image interpolation. The former methods can't keep 3D shape, even though 2D shape. A new morphing method adopted viewpoint morphing technique. The 3D shape of the object can be kept if the projection transformation (called camera matrix) from 3D to 2D can be predetermined. It is difficult to gain camera matrix from the two images by the existing methods and techniques. This drawback confines to the applications of the view morphing. In this paper, a new morphing method is presented. We proved that the interpolatory view is correspondent to a viewpoint. The method needn't predetermine the camera matrix. And it is of simple computation and easy realization.

关 键 词：图象形变 图象插补 Warp函数 视点 

分 类 号：TN941.1[电子电信—信号与信息处理]