Detection of Overlapped Apples in Orchard Scene Using Improved K-means and Distance Least Square

文献类型： 外文期刊

第一作者： Xia Xue

作者： Xia Xue;Zhou Guomin;Qiu Yun;Wang Jian;Hu Lin;Fan Jingchao;Guo Xiuming;Li Zhuang

作者机构：

关键词： Apple; Overlapped fruits; Contour reconstruction; Fruit detection; K-means; DLS

期刊名称：COMPUTER AND COMPUTING TECHNOLOGIES IN AGRICULTURE XI, PT I

ISSN： 1868-4238

年卷期： 2019 年 545 卷

页码：

收录情况： SCI

摘要： Automatic detection of mature apples in a complex agricultural condition is still a challenge for an autonomous picking robot due to the influence from overlapping. In order to detecting overlapped apples in tree canopy using a low-cost camera, a robust apples detection and reconstruction approach based on improved K-means and distance least square algorithm was studied. Firstly, the region of potential apple objects was extracted by using improved K-means algorithm. Then, the contours of apples were obtained by utilizing Canny edge detection algorithm on the V component map and the intact contour of unobscured apple was separated from overlapped apples contour after Y-junction searching. Finally, the contour of obscured apple was reconstructed by use of the distance least square circle fitting algorithm. The proposed method was compared with Hough transform method and the experimental result indicated that the proposed method could get much better performance for overlapped apples detection than Hough transform method. Thus it could be concluded that the proposed method is available for robotic apple picking in overlapped fruits scene with low cost.

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