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| 基于凹点搜索的重叠果实定位检测算法研究 | |
| 引用本文： | 谢忠红,姬长英,郭小清,朱淑鑫.基于凹点搜索的重叠果实定位检测算法研究[J].农业机械学报,2011,42(12):191-196. |
| 作者姓名： | 谢忠红 姬长英 郭小清 朱淑鑫 |
| 作者单位： | 1. 南京农业大学工学院,南京210031;南京农业大学信息科学技术学院,南京210095 2. 南京农业大学工学院,南京,210031 3. 南京农业大学信息科学技术学院,南京,210095 |
| 基金项目： | 国家高技术研究发展计划(863计划)资助项目（2006AA10Z259） |
| 摘 要： | 为了能够快速准确地计算出生长状态为靠拢或重叠的成熟类圆果实的形心坐标和半径,提出了一种基于凹点搜索的快速定位和检测重叠果实目标的方法.利用色调分量的统计规律实现背景分离,采用链码跟踪法获得单像素果实轮廓,并按步长获取边缘特征点；然后利用N点方向编码差获取边缘凹点,确定凹点群,根据阈值确定分割凹点；最后利用改进的Houg... |
| 关 键 词： | 重叠果实 N点方向编码差 边缘特征点 凹点 Hough变换 |
Detection and Location Algorithm for Overlapped Fruits Based on Concave Spots Searching |
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| Xie Zhonghong , Ji Changying , Guo Xiaoqing , Zhu Shuxin.Detection and Location Algorithm for Overlapped Fruits Based on Concave Spots Searching[J].Transactions of the Chinese Society of Agricultural Machinery,2011,42(12):191-196. | |
| Authors: | Xie Zhonghong Ji Changying Guo Xiaoqing Zhu Shuxin |
| Institution: | Nanjing Agricultural University;Nanjing Agricultural University;Nanjing Agricultural University;Nanjing Agricultural University |
| Abstract: | In order to calculate centric coordinates and radius of quasi-circular ripe fruits whose growing state was approached or overlapped,a kind of fast location and detection method for fruits object based on concave spots searching was proposed.After the object was segmented from background with hue according to statistical law,the freeman chain code algorithm was used to extract one-pixel fruit contour,from which the edge character points were abstracted.Then the edge concave spots which were found by directio... |
| Keywords: | Overlapped fruits Direction coding difference of N points Edge character point Group of concave spots Hough transform |
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