基于双目技术的室内三维测量算法研究

Research on indoor 3d measurement algorithm based on binocular technology

摘要:

研究了基于双目技术的室内三维测量方法,获取了室内目标的三维信息,用于室内三维测量、三维定位以及提取目标深度信息。该方法基于双目视差三角测量原理,利用张正友棋盘格标定、Bonguet立体矫正算法、基于区域的立体匹配算法BM/SGBM等技术,计算了室内目标的深度信息。经过测量,实验结果满足预期误差,并从标定误差、实验环境误差和算法误差三个方面分析误差原因,为以后提高测量精度、降低误差提供方向。

Abstract:

This paper studies the indoor three dimensional (3D) measurement method based on binocular technology, and acquires the 3d information of the indoor target, which is used for indoor 3D measurement, 3D positioning and extraction of target depth information. Based on the principle of binocular parallax triangulation, this method calculates the depth information of indoor targets by using Zhang Zhengyou’s checkerboard calibration, Bonguet stereo rectification algorithm, region-based stereo matching algorithm BM (Block Matching) / SGBM (Semi-Global Block Matching) and other technologies. After measurement, the experimental results meet the expected error. The error causes are analyzed from calibration error, experimental environment error and algorithm error, which provide a direction for improving the measurement accuracy and reducing the error in the future.