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A Way of Edge Detection for Cylindrical Objects on an Image by the Shadow Method of Dimensional Control

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Optoelectronics, Instrumentation and Data Processing Aims and scope

Abstract

A way of detecting the edge of cylindrical objects in an image with the use of the projection shadow method is proposed. The method involves the use of telecentric optics and an incoherent light source and is based on determining the object edge on the image by the position of the maximum of the derivative of the intensity dependence. The error of the proposed method is estimated theoretically and experimentally. The achieved error level in measurements of the diameter of cylindrical objects is \(0.3\times 10^{-5}\). The result confirms the efficiency and prospects of the proposed method.

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Correspondence to S. V. Dvoinishnikov.

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Translated by A. Nikolskii

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Dvoinishnikov, S.V., Rakhmanov, V.V., Kabardin, I.K. et al. A Way of Edge Detection for Cylindrical Objects on an Image by the Shadow Method of Dimensional Control. Optoelectron.Instrument.Proc. 58, 30–35 (2022). https://doi.org/10.3103/S8756699022010034

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