一种基于图像拼接的场景绘制方法  

A New 3D Plenoptic Function-Linear Mosaic

作　　者：张素[1,2] 徐乃平[1] 张素[1,2] 陈韩锋[2] 刘允才 

机构地区：[1]西北工业大学自动控制系,陕西西安710072 [2]上海交通大学图像处理与模式识别研究所,上海200030

出　　处：《西北工业大学学报》2002年第2期319-323,共5页Journal of Northwestern Polytechnical University

摘　　要：提出一种基于图像拼接的场景绘制方法,采用一种新的三维全光函数,将沿直线采集的前向序列图像按一定规则处理之后形成一个线性拼接(Linear Mosaic)。线性拼接的数据结构是二维数组,有利于数据的压缩、存储和传输。另外,线性拼接图像的一行对应一个特定视点的全方向的全景图,可以绘制其任意方向的视图,降低了对绘制系统内存的要求。A new 3D plenoptic function called linear mosaic (LM) is presented in this paper. A LM is created by extracting appropriate circles from the forward images and putting them together in different blocks. It indexes rays according to three parameters: camera position along the track line, vertical angle and rotation angle. Because its representation is only a single frame of image, a LM is superior to other 3D plenoptic functions on compressing, storing and transmission. In the data structure of LM, pixels in a row correspond to a full-directions panorama, so the view looking around can be produced by pre-loading adjacent rows for efficient rendering.

关 键 词：图像拼接 场景绘制 三维全光函数 线性拼接 虚拟理实 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] TP391.9[自动化与计算机技术—计算机科学与技术]