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Automatic extraction of tree crowns from aerial imagery in urban environment
Liu, Jiahang1,2; Li, Deren3; Qin, Xunwen4; Yang, Jianfeng2; Liu, J. (jhliu@opt.cn)
2006
会议名称Geoinformatics 2006: Remotely Sensed Data and Information
会议录名称Geoinformatics 2006: Remotely Sensed Data and Information
卷号6419
会议日期2006-10-28
会议地点Wuhan, China
出版者SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States
产权排序1
摘要

Traditionally, field-based investigation is the main method to investigate greenbelt in urban environment, which is costly and low updating frequency. In higher resolution image, the imagery structure and texture of tree canopy has great similarity in statistics despite the great difference in configurations of tree canopy, and their surface structures and textures of tree crown are very different from the other types. In this paper, we present an automatic method to detect tree crowns using high resolution image in urban environment without any apriori knowledge. Our method catches unique structure and texture of tree crown surface, use variance and mathematical expectation of defined image window to position the candidate canopy blocks coarsely, then analysis their inner structure and texture to refine these candidate blocks. The possible spans of all the feature parameters used in our method automatically generate from the small number of samples, and HOLE and its distribution as an important characteristics are introduced into refining processing. Also the isotropy of candidate image block and holes' distribution is integrated in our method. After introduction the theory of our method, aerial imageries were used (with a resolution about 0.3m) to test our method, and the results indicate that our method is an effective approach to automatically detect tree crown in urban environment.

作者部门遥感与智能信息系统研究中心
DOI10.1117/12.712732
收录类别EI
ISBN号9780819465283
语种英语
ISSN号0277786X
引用统计
文献类型会议论文
条目标识符http://ir.opt.ac.cn/handle/181661/29213
专题遥感与智能信息系统研究中心
通讯作者Liu, J. (jhliu@opt.cn)
作者单位1.Institute of Image Processing and Pattern Recognition, J.T. Univ., Shanghai, 200240, China
2.Institute of Optics and Precision Machines, CAS, Xi'an, 710068, China
3.LIESMARS, Wuhan Univ., Wuhan, 430079, China
4.China Geological Survey, Beijing, 100083, China
推荐引用方式
GB/T 7714
Liu, Jiahang,Li, Deren,Qin, Xunwen,et al. Automatic extraction of tree crowns from aerial imagery in urban environment[C]:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States,2006.
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