三维机器视觉中摄像机内外方位元素的确定  

The Determination of the Intrinsic and Extrinsic Parameters of Camera for 3D Machine Vision

作　　者：胡海峰[1] 熊银根[1] 

机构地区：[1]中山大学电子与通信工程系,广东广州510275

出　　处：《中山大学学报（自然科学版）》2002年第6期22-25,共4页Acta Scientiarum Naturalium Universitatis Sunyatseni

基　　金：广东省自然科学基金资助项目 (0 0 1172 )

摘　　要：采用TSAI算法对立体视觉系统进行校准。该算法利用径向投影的平行原则 ,能够快速、方便地计算出摄像机的几何光学参量及其在某一物体参考系中的方位元素。论文针对 75 2× 5 82的CCD摄像器件在点共面和不共面等情况下进行了内、外方位元素的计算 ,获得了 4组实验数据 ,误差结果也一一给出。从实验获得的数据可以看出利用TSAI方法可以获得很好的校准结果。TSAI algorithm is adopted to calibrate a stereo vision system. Based on parallelism of the radial projection, the optical characteristics (intrinsic parameters) and/or the 3D position and orientation of the camera frame relative to a certain world coordinate system (extrinsic parameters) can be quickly and efficiently calculated. A 752×582 CCD camera is calibrated in the coplanar situation and non_coplanar situation and four group data is acquired. The error are also presented. It is proved through the experiment data and error results that the TSAI algorithm is correct and reliable.

关 键 词：三维机器视觉 方位元素 TSAI算法 摄像机校准 立体视觉系统 径向投影 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]