基于误差补偿的高精度微光双目测距

High Precision Low-Light-Level Binocular Range Measurement Based on Error Compensation

摘要: 为实现在微光环境下进行远距离、高精度的双目测距，本文基于双目视差原理和三角化重建方法，针对微光成像特点，在概括分析双目立体视觉原理与方法的基础上，构建便携式微光测距原型系统，提取适应低照度图像的稳定有效的特征，并提出系统精度优化方法。试验结果表明，该方法具有较高的鲁棒性和精确度，在20~200 m的范围内测量误差小于1%，响应时间不超过0.05 s。

Abstract: In order to realize long-distance and high-precision binocular ranging measurement in low-light-level environment, based on binocular parallax principle and triangulation reconstruction method, in the light of characteristics of low-light-level imaging and general analysis of binocular ranging methods, this thesis constructs a portable low-light-level ranging prototype system using stable and efficacious feature extraction method adaptive for low-light-level image, and implements a system accuracy optimization method. Experiments show that the method is highly robust and precise. In 20~200 meters, the relative error of the corrected results is below 1%, and response time less than 0.05 s.