無農薬除草のための基礎的研究（第１報）　画像処理手法による作物と雑草の識別

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タイトル別名
  • Basic Studies on Weeding without Herbicide. (Part 1) Discrimination between Crops and Weeds by Image Processing.
  • ム ノウヤク ジョソウ ノ タメ ノ キソテキ ケンキュウ 1 ガゾウ ショリ
  • Discrimination between Crops and Weeds by Image Processing
  • 画像処理手法による作物と雑草の識別

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抄録

A method to recognize crops by image processing was developed as a basic technology to achieve a non-herbicidal, physical weeding method. Using three metric feature values related to dimension (projective area, maximum horizontal cord and maximum vertical cord), it was possible to distinguish vegetables from weeds. As a result of the comparison of growth rate between vegetables and weeds, it was assumed that the applicable periods of this method were about 30 days after transplanting for lettuce, about 35 days for cabbage, and the whole period from transplanting to harvesting for Chinese cabbage. When a neutral density filter was mounted on the camera and when luminous intensity was from 4, 000 to 60, 000lx, the errors in metric feature values were less than 4% for projective area, and less than 3% for both maximum cord.

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