Shake reduction method of underwater laser scanning system for high-precision measurement

Shake reduction method of underwater laser scanning system for high-precision measurement
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高精度测量水下激光扫描系统防抖方法

DOI:
10.1117/1.oe.58.8.084108
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发表时间:
2019-08
影响因子:
1.3
通讯作者:
Zhang Can
Zhang Can
中科院分区:
工程技术4区
文献类型:
--
作者:
Xie Liangliang;Zhang Xu;Tu Dawei;Xiao Guoliang;Jin Pan;Zhang Can

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抽象。为了减小水下激光扫描系统的动态测量误差,提出了一种减小抖动的方法。利用特征点构建动态坐标,同步估计扫描系统的位姿,并对扫描结果进行修正,实现剧烈晃动条件下的高精度测量。实验结果表明,当目标位于3 m外时,动态测量误差<2 mm,RMS <2 mm,验证了该方法的可行性。
Abstract. To minimize dynamic measurement error in an underwater laser scanning system, a shake reduction method is proposed. Feature points are used to construct a dynamic coordinate, estimate the position and attitude of the scanning system synchronously, and correct the scanning results, so as to achieve high-precision measurement under severe shaking conditions. Experimental results show that the dynamic measurement error is <2  mm and the RMS is <2  mm when the target is located 3 m away, which verifies the feasibility of the method.
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