从全方位视觉传感器ODVS( Omni-Directional Vision Sensor)的成像原理出发,指出双目立体全方位视觉传感器BOD-VS (Binocular stereo Omni- Directional Vision Sensor)的测量精度受基线距、测量距离和摄像机采集图像量化精度的影响;在同等条件下,证明了BODVS测量精度与基线距成正比、与测量距离平方成反比;为了便于进一步分析影响BODVS测量精度的因素,提出了一种ODVS的标定方法,并使用标定结果,在BODVS的基线距分别为62. 198 cm、82. 198 cm和102.198cm下,通过测距实验验证了上述结论.%Basing on imaging principle of Omni-Directional Vision Sensor (ODVS), this paper indicates that measuring accuracy of Binocular stereo Omni-Directional Vision Sensor (BODVS) is affected by camera' s quantization error. If resolution ratio of ODVS is invariability, the paper demonstrates that measuring accuracy of BODVS is determined by measuring distance and length of baseline. In order to analyze the accuracy of measurement system, this paper proposes a calibration method. Under the baselines' length of 62. 198cm, 82. 198cm and 102. 198cm respectively, the experiment validates the above conclusion by the calibration data.
展开▼
