摘要： 为提高双目立体视觉系统的测量精度，分析双目视觉系统的工作原理以及该系统各个环节的误差模型。通过提高标定模板的精度、增加标定图像，可以减小标定误差及图像校正行对齐误差。分析图像识别误差对视觉系统测量精度的影响，导入视觉系统的结构参数与测量误差之间的关系，从而确定结构参数对测量精度的作用。讨论物距对测量精度的影响，并给出合适的物距范围。
关键词:
立体视觉,
精度分析,
摄像机标定,
立体校正,
结构参数
Abstract: To raise the measurement accuracy of binocular stereo vision system, working principle of binocular vision system and error model in all aspects are analyzed. The calibration error and the image rectification error can be reduced by improving the accuracy of calibration template and increasing calibration images. By analyzing image recognition errors’ influence on the measurement accuracy of the visual system, the relationship between structural parameters of visual system and measurement errors is introduced. The influence of structural parameters to visual system is determined. The influence of object distance on measurement accuracy is discussed and a proper object distance scope is given.
Key words:
stereo vision,
accuracy analysis,
camera calibration,
stereo rectification,
structural parameter
中图分类号:
刘俸材, 谢明红, 颜国霖. 双目立体视觉系统的精度分析[J]. 计算机工程, 2011, 37(19): 280-282,285.
LIU Beng-Cai, XIE Meng-Gong, YA Guo-Lin. Accuracy Analysis of Binocular Stereo Vision System[J]. Computer Engineering, 2011, 37(19): 280-282,285.