전기학회논문지P (The Transactions of the Korean Institute of Electrical Engineers P)

  • 제55권4호
  • /
  • Pages.167-175
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  • 2006
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  • 1229-800X(pISSN)
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  • 2586-7792(eISSN)
대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

반도체 웨이퍼 ID 인식을 위한 다중템플릿형 영상분할 알고리즘 개발

Development of a Multi-template type Image Segmentation Algorithm for the Recognition of Semiconductor Wafer ID

  • 안인모 (마산대학 컴퓨터전기공학부)
  • 발행 : 2006.12.01
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초록

This paper presents a method to segment semiconductor wafer ID on poor quality images. The method is based on multiple templates and normalized gray-level correlation (NGC) method. If the lighting condition is not so good and hence, we can not control the image quality, target image to be inspected presents poor quality ID and it is not easy to identify and then recognize the ID characters. Conventional several method to segment the interesting ID regions fails on the bad quality images. In this paper, we propose a multiple template method, which uses combinational relation of multiple templates from model templates to match several characters of the inspection images. To find out the optimal solution of multiple template model in ID regions, we introduce newly-developed snake algorithm. Experimental results using images from real FA environment are presented.

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참고문헌

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