반도체디스플레이기술학회지 (Journal of the Semiconductor & Display Technology)

한국반도체디스플레이기술학회 (The Korean Society Of Semiconductor & Display Technology)
권호 표지

템플릿 매칭을 이용한 7-세그먼트 광학 문자 인식

7-Segment Optical Character Recognition Using Template Matching

  • 정민철 (상명대학교 공과대학 전자공학과)
  • Jung, Min Chul (Dept. of Electronic Engineering, Sangmyung University)
  • 투고 : 2020.12.17
  • 심사 : 2020.12.22
  • 발행 : 2020.12.31
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초록

This paper proposes a new method for the digit recognition on a 7-segment display. The proposed method uses morphological processing that dilates segments of digits and connects them into strokes. The digits are extracted by connected component analysis and finally, template matching method recognizes the extracted digits. The proposed method is implemented using C language in Raspberry Pi 4 system with a camera module for a real-time image processing. Experiments were conducted by using various 7-segment LED displays and 7-segment mono LCD displays. The results show that the proposed method is successful for the digit recognition on the 7-segment displays.

키워드

참고문헌

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