DEM matching and surface deformation detecting without control points considering terrain feature

doi:10.3778/j.issn.1002-8331.2009.31.058

Computer Engineering and Applications ›› 2009, Vol. 45 ›› Issue (31): 193-195.DOI: 10.3778/j.issn.1002-8331.2009.31.058

• 工程与应用 • Previous Articles Next Articles

DEM matching and surface deformation detecting without control points considering terrain feature

FENG Yi-cong^1，2，CEN Min-yi¹，ZHANG Tong-gang¹，HUANG Zhi-qin²

1.Department of Surveying Engineering，School of Civil Engineering，Southwest Jiaotong University，Chengdu 610031，China
2.Information Centre，Land and Resource Department of Sichuan Province，Chengdu 610072，China

Received:2008-11-21 Revised:2008-12-22 Online:2009-11-01 Published:2009-11-01
Contact: FENG Yi-cong

无控制DEM匹配与地表差异探测

冯义从^1，2，岑敏仪¹，张同刚¹，黄志勤²

1.西南交通大学土木工程学院，成都 610031
2.四川省国土资源厅信息中心，成都 610072

通讯作者: 冯义从

Abstract

Abstract: Due to difficulties in building and maintaining control points，terrain change detection is difficult in the inundated area of debris-flow.Considering terrain feature，a new Digital Elevation Model（DEM） matching and deformation detecting method without control points is proposed.The experimental results based on real data sets，the multi-temporal DEMs of PUWAIGOU，validate the proposed method is practical for monitoring the terrain changes in the debris-flow area.

Key words: 3D matching, deformation detecting, robust estimator, terrain feature

摘要： 泥石流爆发地区控制点布设和维护困难，使得精确探测该类区域泥石流造成的地表变化非常困难。基于规则格网DEM（Digital Elevation Model），分析泥石流灾害的特点，提出了顾及地形特征的无控制DEM匹配与差异探测方法。根据不同时相DEM数据，利用该方法成功探测出普歪沟泥石流爆发区的地表水土流失变化。

关键词: 三维匹配, 差异探测, 稳健估计, 地形特征

CLC Number:

TP39

FENG Yi-cong^1，2，CEN Min-yi¹，ZHANG Tong-gang¹，HUANG Zhi-qin². DEM matching and surface deformation detecting without control points considering terrain feature[J]. Computer Engineering and Applications, 2009, 45(31): 193-195.

冯义从^1，2，岑敏仪¹，张同刚¹，黄志勤². 无控制DEM匹配与地表差异探测[J]. 计算机工程与应用, 2009, 45(31): 193-195.

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DEM matching and surface deformation detecting without control points considering terrain feature

无控制DEM匹配与地表差异探测

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