| MVLL算法中地表断裂特征的自适应窗口变化策略研究 |
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| 引用本文： | 纪松,范大昭,张永生,刘航冶.MVLL算法中地表断裂特征的自适应窗口变化策略研究[J].武汉大学学报(信息科学版),2011(2):199-203. |
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| 作者姓名： | 纪松 范大昭 张永生 刘航冶 |
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| 作者单位： | 信息工程大学测绘学院;北京大学遥感与地理信息系统研究所;东华理工大学江西省数字国土重点实验室; |
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| 基金项目： | 国家863计划资助项目(2006AA12Z154); 国家自然科学基金资助项目(40901179); 江西省数字国土重点实验室开放研究基金资助项目(DLLJ201001,DLLJ201003) |
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| 摘 要： | 针对线阵CCD影像,研究了MVLL算法的匹配走向,得出了匹配走向即建筑物底部至对应屋顶的连线在匹配过程中为近似直线的结论。分析了MVLL算法中地表断裂特征通常匹配至屋底的匹配难点,改进了相关参数自适应调整算法,给出了自适应窗口变化算法的流程。两组ADS40线阵影像的断裂特征匹配实验表明,经过自适应窗口变化后,地表断裂特征能够成功匹配,MVLL算法的自适应性增强。
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| 关 键 词： | MVLL 匹配走向 断裂特征 窗口变化 相关系数 |
Self-adaptive Window Extension Strategies of Discontinuity Features for MVLL Algorithm |
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| JI Song FAN Dazhao, ZHANG Yongsheng LIU Hangye.Self-adaptive Window Extension Strategies of Discontinuity Features for MVLL Algorithm[J].Geomatics and Information Science of Wuhan University,2011(2):199-203. |
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| Authors: | JI Song FAN Dazhao ZHANG Yongsheng LIU Hangye |
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| Institution: | JI Song1 FAN Dazhao1,2 ZHANG Yongsheng1 LIU Hangye1,3(1 Institute of Surveying and Mapping,Information Engineering University,66 Middle Longhai Road,Zhengzhou 450052,China)(2 Institute of Remote Sensing and GIS,Peking University,5 Yiheyuan Road,Haidian District,Beijing 100871,China)(3 Jiangxi Province Key Lab for Digital Land,East China Institute of Technology,56 Xuefu Road,Fuzhou 344000,China) |
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| Abstract: | Matching line of MVLL algorithm was investigated for line-array CCD images,and it can be concluded that the matching line was the line between top feature and its corresponding bottom feature and can be regarded as a straight line.For MVLL algorithms,the difficulties of discontinuity feature that usually matched to the bottom were analyzed,and the algorithm of self-adaptive adjustment of correlation parameters was improved.After the process of self-adaptive window extension algorithm was given.The matching ... |
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| Keywords: | MVLL matching line discontinuity feature window extension correlation coefficients |
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