灭点误差分布的理论精度评定

Evaluating the Theoretical Accuracy of Error Distribution of Vanishing Points

长久以来灭点的研究都集中在自动检测和相机检校方面,然而对其本身的误差分布研究并不多。针对直线交会灭点时存在的闭合差问题和灭点的误差分布问题,进行深入探讨。构建单像灭点平差解算的初始选权方案,并提出基于选权迭代法、协因数矩阵和误差椭圆理论来解算和估计灭点误差分布的方法。通过实验揭示灭点误差分布规律。

The related researches of vanishing point have been focusing on its automatic detection and camera calibration for a long time,however there were few researches on its error distribution.Aiming at the closing error issue of lines intersection and the error distribution of vanishing points,we have made in-depth discussions.How to set initial weights for the adjustment solution of single image vanishing points is presented.Furthermore,we propose solving and estimating error distribution of vanishing points based on iteration method with variable weights,co-factor matrix and error ellipse theory.Experimental results reveal the law of error distribution of vanishing points.