The Public Passive Ranging Algorithm Based on Image Sequence

Du Yaling, L. Jing
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引用次数: 1

Abstract

Aiming at the passive ranging to the non-cooperate target, the passive ranging algorithm based on the image sequence is proposed. The analysis on the image matching algorithms were performed, including SIFT, SURF, and ASURF. In which, the SURF algorithm is better method in our system becouse of the real time and precision. It can find plenty of special regions from the target images grabbed at real time. Each special region includes not only the position, size and direction of itself, but also includes a feature vector with shifting, rotation and scale invariance. According to that information, each special region in grabbed image can find a corresponding region in target features database, and build a matching pair. So, the ranging from the target to the camera can be estimated by the parameters of the matching pairs. Experimental results show that the passive ranging algorithm is effective and reliable.
基于图像序列的公共被动测距算法
针对非合作目标的被动测距问题,提出了基于图像序列的被动测距算法。对SIFT、SURF、ASURF等图像匹配算法进行了分析。其中SURF算法实时性好,精度高,是本系统中较好的方法。它可以从实时捕获的目标图像中发现大量的特殊区域。每个特殊区域不仅包含自身的位置、大小和方向,还包含一个具有移动、旋转和尺度不变性的特征向量。根据这些信息,抓取图像中的每个特殊区域可以在目标特征数据库中找到对应的区域,并构建匹配对。因此,可以通过匹配对的参数来估计目标到相机的距离。实验结果表明,该被动测距算法是有效可靠的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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