Calibration Method for Multi-camera Based on Honeycomb Stereo Target
In order to address the issue of rapid calibration of multi-camera and the construction of pose relationships between dif-ferent coordinate systems,a multi-camera calibration method based on a novel honeycomb stereo target was proposed to enable swift and precise multi-camera calibration.The honeycomb structure designed by bionics principle has five different spatial pose planes attached with self-identification array tags,which could improve the calibration stability and robustness.Using a multi-camera to capture one im-age could complete camera calibration and build relationships between coordinate systems,which improved calibration efficiency.Final-ly,the proposed method was compared with traditional camera calibration methods.The results indicate that compared to traditional cali-bration methods,the proposed method reduces the mean reprojection error of camera calibration by 18.4％and the mean reprojection er-ror of external parameters between multi-camera systems by 8.5％.The relative error of the mean reprojection error under occlusion in-terference is only 0.01 pixel,the feasibility of the new calibration method is further validated.
万方数据
维普
