Xi'an Institute of Optics and Precision Mechanics,CAS
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 |
DOI | 10.1117/12.712732 |
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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文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
Automatic extraction(375KB) | 会议论文 | 限制开放 | CC BY-NC-SA | 请求全文 |
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