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자료유형
학술저널
저자정보
김동억 (Production Machinery Division, National Institute of Agricultural Engineering) 조한근 (Dept. of Biosystem Engineering, Chungbuk National University) 장유섭 (National Institute of Agricultural Engineering RDA) 김종구 (National Institute of Agricultural Engineering RDA) 김현환 (National Institute of Agricultural Engineering RDA) 손재룡 (National Institute of Agricultural Engineering RDA)
저널정보
한국농업기계학회 바이오시스템공학(구 한국농업기계학회지) 바이오시스템공학 제32권 제3호
발행연도
2007.1
수록면
179 - 189 (11page)

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Most of the seeds of cucurbitaceous rootstock species used for grafting were mainly sown by hand. This study was carried out to develop an on-line discriminating algorithm of seed direction using machine vision and an automatic seeding system. The seeding system was composed of a supplying device, feeding device, machine vision system, reversing device, seeding device and system control section. Machine vision was composed of a color CCD camera, frame grabber, image inspection chamber, lighting and personal computer. The seed image was segmented into a region of seed part and background part using thresholding technique in which H value of HSI color coordinate system. A seed direction was discriminated by comparing position between the center of circumscribed rectangle to a seed and the center of seed image. It took about 49ms to identify and redirect seed. Line-up status of seed was good the more than 95% of a sowed seed. Seeding capacity of this system was shown to be 10,140 grains per hour, which is three times faster than that of a typical worker.

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