Oh-Dal Kwon
Samsung
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Publication
Featured researches published by Oh-Dal Kwon.
Journal of Materials Processing Technology | 1996
Min-Yang Yang; Oh-Dal Kwon
Abstract In this paper we present a technique to measure the crater wear using image processing and automatic focusing. The new contour detection algorithm, which can adapt in a noisy image, is suggested. It is suitable for eliminating high frequency noises without blurring and with lower processing time. An automatic focusing technique is applied to measure a crater wear depth with a one-dimensional search algorithm for finding the best focus. This method is implemented in the tool microscope driven by a servo motor. The results show that the contour and the depth of crater wear can be measured reliably.
Control Engineering Practice | 1998
Min-Yang Yang; Oh-Dal Kwon
Abstract In unmanned machining, when an abnormality condition occurs in a tooling system, a proper action to detect, interpret and determine the condition has to be made. In this paper, a method of sensing the abnormal conditions of tools on the basis of image processing is developed. To recognize the tool conditions, a pattern recognition technique using the multi-layered perceptron with the back-propagation algorithm as a neural network is applied. This paper also presents quantitative measurement of flank wear and crater wear in order to use the data as the input of the neural network.
IFAC Proceedings Volumes | 1997
Min-Yang Yang; Oh-Dal Kwon
Abstract In unmanned machining, when an abnormality condition like tool fracture occurs in a tooling system, a proper action to detect, interpret and determine the condition has to be made. In this paper, a method of sensing the abnormal conditions of tool on the basis of image processing is developed. To recognize the tool conditions, a pattern recognition technique using the multi-layered perceptron with the back-propagation algorithm as a neural network is applied. This paper also presents a quantitative measuring system in order to obtain the amount of flank wear and crater wear and use the data as the input of the neural network.
Optical Technology | 2003
Sun-tae Jung; Oh-Dal Kwon
Archive | 2000
Oh-Dal Kwon; Seong-Eun Lim; Tae-Woo Yun
Archive | 2001
Gi-Tae Mun; Ki-Soo Park; Oh-Dal Kwon; Young-soo Yang; Dae-Hyun Kang
Archive | 2003
Shin-young Yoon; Oh-Dal Kwon
Archive | 1999
Oh-Dal Kwon; Jin-Soo Kim; Hyun-Seob Park
Archive | 2003
Oh-Dal Kwon; Shin-young Yoon; Sang-Gil Shin; Bang-Weon Lee; Jeong-Hwan Song; Sang-Wook Yoo; Young-Gyu Son
Archive | 2003
Byung-Gil Jeong; Oh-Dal Kwon