| 关键点检测的线要素综合算法 |
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| 引用本文： | 黄志坚,张金芳,徐帆江.关键点检测的线要素综合算法[J].中国图象图形学报,2012,17(2):241-248. |
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| 作者姓名： | 黄志坚 张金芳 徐帆江 |
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| 作者单位： | 国防科技大学电子科学与工程学院空间信息技术研究所,长沙 410073;中国科学院软件研究所综合信息系统技术国家级重点实验室,北京 100190;中国科学院软件研究所综合信息系统技术国家级重点实验室,北京 100190;中国科学院软件研究所综合信息系统技术国家级重点实验室,北京 100190 |
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| 基金项目： | 中国科学院国防科技创新基金(CXJJ-11-M07) |
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| 摘 要： | 提出一种基于关键点检测的线要素自动综合算法。利用角点检测器检测出所有角点,并从中筛选出关键点作为必须保留的点,以保证线要素的基本形态得到保持;线要素在关键点处分段后,各段分别采用Li-Openshaw算法进行综合。实验结果表明,该算法较传统算法能够更好地保持线要素的形状特征,且具有更高的位置精度。
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| 关 键 词： | 线要素综合 角点检测 自适应门限 关键点检测 Li-Openshaw算法 |
| 收稿时间： | 2011/2/21 0:00:00 |
| 修稿时间： | 2011/5/26 0:00:00 |
Algorithm of line generalization with key point detection |
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| Huang Zhijian,Zhang Jinfang and Xu Fanjiang.Algorithm of line generalization with key point detection[J].Journal of Image and Graphics,2012,17(2):241-248. |
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| Authors: | Huang Zhijian Zhang Jinfang and Xu Fanjiang |
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| Affiliation: | SPDF.School of Electronic Science and Engineering,National University of Defense Technology,Changsha 410073,China;IIST Key Lab.Institute of Software,Chinese Academic Science,Beijing 100190,China;IIST Key Lab.Institute of Software,Chinese Academic Science,Beijing 100190,China;IIST Key Lab.Institute of Software,Chinese Academic Science,Beijing 100190,China |
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| Abstract: | A new automatic algorithm for line generalization based on key point detection is presented in this paper.An adaptive threshold corner detector is used to detect all corner points,from which key points are selected.To keep the shape characteristic of lines,all key points must be reserved.For the segmented lines at these key points,each sub-line is generalized with the Li-Openshaw algorithm.Compared with conventional algorithms,the results of our experiments show that the shape of lines is better preserved and the positions are more accurate. |
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| Keywords: | line generalization corner detection adaptive threshold key point detection Li-Openshaw algorithm |
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