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Optimal Spatial Resolution in Catadioptric Sensors for Pipe Inspection Applications

机译:用于管道检查应用的折反射传感器的最佳空间分辨率

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Spatial resolution in imaging systems used for pipe inspection plays a crucial role. Catadioptric imaging systems, which normally consist of a perspective camera and a hyperbolic mirror provide a cost-effective solution. Also, they would be the imaging system of choice in confined spaces due to their size factor. In this paper we, (1) define the cylindrical spatial resolution for the pipe inspection purposes, (2) formulate the spatial resolution mathematically based on system's parameters such as, the focal length of the perspective camera, and the mirror shape, and (3) provide a guideline on having the optimal configuration yielding the highest spatial resolution. Numerical results are provided which are also supported by experimental results. Experimentation was carried out using a Catadioptric imaging system mounted on a motorized linear track moving inside a PVC pipe. Checkerboard calibration patterns were used through experiments to verify on results.
机译:在用于管道检查的成像系统中,空间分辨率起着至关重要的作用。折反射成像系统通常由透视相机和双曲镜组成,提供了一种经济高效的解决方案。同样,由于它们的尺寸因素,它们将成为在狭窄空间中选择的成像系统。在本文中,我们(1)定义用于管道检查的圆柱空间分辨率,(2)根据系统参数(例如,透视相机的焦距和镜面形状)以数学方式制定空间分辨率,并且(3 )提供有关具有最佳配置以产生最高空间分辨率的指南。提供了数值结果,实验结果也支持该数值结果。实验使用安装在电动PVC管道内移动的线性轨道上的反射折射成像系统进行。通过实验使用棋盘格校准图案来验证结果。

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