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首页> 外文期刊>Optik: Zeitschrift fur Licht- und Elektronenoptik: = Journal for Light-and Electronoptic >Underwater visual position measurement system for high-accuracy beam installation
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Underwater visual position measurement system for high-accuracy beam installation

机译：用于高精度光束安装的水下视觉位置测量系统

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In order to improve the efficiency of an underwater beam installation process, a computer-controlled position adjustment system is established. High accurate underwater position measurement is required in the system to ensure the fitting accuracy of two beams in the fine adjustment. This paper presents a visual measurement method using two pairs of underwater bi-camera vision system. Because the beams are of large size, appropriate markers as the measuring objects are coated on the rails fixed on two beams. A tank filled with clear water is put in front of each underwater camera to reduce the backscattering effect caused by turbid water. In order to solve the inaccuracy of position measurement due to blur edges and unclear contours on the images from the underwater cameras, super resolution as well as other image processing methods has been applied. By analyzing the extracted features from some interest lines and points of the processed images of markers, the position of the beam can be obtained. Results have shown that the position measurement errors are acceptable and the method can be used practically. (C) 2016 Elsevier GmbH. All rights reserved.
机译：为了提高水下光束安装过程的效率，建立了计算机控制的位置调节系统。系统中需要高精度的水下位置测量，以确保微调中两个光束的装配精度。本文提出了一种使用两对水下双摄像机视觉系统的视觉测量方法。由于梁的尺寸较大，因此将适当的标记物（作为测量对象）涂在固定在两个梁上的导轨上。每个水下摄像机的前面都装有一个装满清水的水箱，以减少混浊水造成的反向散射效应。为了解决由于来自水下摄像机的图像上的边缘模糊和轮廓不清晰而引起的位置测量的不准确性，已经应用了超分辨率以及其他图像处理方法。通过分析从一些兴趣线和标记的处理图像的点中提取的特征，可以获取光束的位置。结果表明，位置测量误差是可以接受的，该方法可以实际使用。 （C）2016 Elsevier GmbH。版权所有。

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