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4단 7열 LED 사이니지 전면부 설치형 카메라기반 불량 LED 소자 검출 Vision 기술에 관한 연구
박영기,임상일,조익현,차재상 한국멀티미디어학회 2020 멀티미디어학회논문지 Vol.23 No.11
Recently, a 4-col 7-row LED Screen that provides various information of major roads and local governments has been installed and operated. However, due to deterioration due to changes in temperature and humidity, deterioration due to static electricity, and mechanical stress, partial module failure of the display may occur, which is a major cause of missing information of vitally given to citizens. However, there have been frequent cases where the 4-col and 7-row LED Screen that have failed due to reasons such as installed location where the signboards are installed on the road and outdoor, the lack of monitoring means at all times, and the lack of manpower is often neglected for a long time. Following this flow, this paper proposes a method to detect defective modules by analyzing the images collected through the camera fixed to the front part of the LED display