IMAGE MATCHING METHOD FOR PRINTED CIRCUIT BOARD USING EDGE DIRECTION HISTOGRAM BASED ON EDGE STRENGTH

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概要

• 論文の詳細を見る

• This paper proposed a method to search a target image area that has free location and inclination in a gray-scaled image of a printed circuit board. Because the electrical components and the wires are set vertically or horizontally on a printed circuit board, it is likely that edge directions are distributed vertically or horizontally a lot. The proposed method can estimate the inclination of a target image area by feature of edge directions and can reduce the computational cost for template matching. The inclination is measured by the edge direction histogram based on edge strengths. The experimental results show that the inclinations of target image areas were measured with the averaged accurate of ± 2 degree and the computational cost was reduced to about 1% in comparison with the conventional method

• 社団法人電子情報通信学会の論文
• 2003-01-15

著者

• SAITOH Fumihiko

  Pharmaceutical Research Center, Mochida Pharmaceutical Co., Ltd.

• Saitoh F

  Pharmaceutical Research Center Mochida Pharmaceutical Co. Ltd.

• Saitoh Fumihiko

  Department Of Information Science Gifu University

• Goto Kunihiro

  Department of Information Science, Faculty of Engineering, Gifu University

• Goto Kunihiro

  Department Of Information Science Faculty Of Engineering Gifu University

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