摘要
介绍了传统的基于摄像机内外参数获得空间三维信息的方法;并通过建立空间三维点阵与像面空间映射关系,提出一种新的获得三维信息的方法,该方法不用求解摄像机的任何内外参数。在小视场范围内验证了两种方法的精度,分析了两种方法的优缺点。试验表明后一种方法的精度比较高,说明了它的可行性和适用范围。
Two methods are described: the traditional one is calibrating the camera interior and exterior parameters to get 3D information; the new one is based on the mapping relation of three-dimensional lattice space and the stereo image space, which needn’t calculate any camera interior and exterior parameters. The merits and demerits of the two methods are analyzed and their measuring precisions are verified. Experiment results show the second approach is feasible and can get higher precision of measurement in a small field.
出处
《工程图学学报》
CSCD
北大核心
2005年第2期132-136,共5页
Journal of Engineering Graphics
基金
武汉市科技攻关计划资助项目(200310040504)
关键词
计算机应用
立体测量技术
摄像机内外参数
空间三维网格场
线性细分
computer application
stereo measuring technology of image
camera interior and exterior parameters
three-dimensional lattice space
linear subdivision
