Locally adaptive template sizes for matching repeat images of Earth surface mass movements

被引:32
作者
Debella-Gilo, Misganu [1 ]
Kaab, Andreas [1 ]
机构
[1] Univ Oslo, Inst Geosci, Oslo, Norway
关键词
Image matching; Normalized cross-correlation; Mass movement; Displacement; Adaptive template; VELOCITIES; WINDOW; SATELLITE; STEREO;
D O I
10.1016/j.isprsjprs.2012.02.002
中图分类号
P9 [自然地理学];
学科分类号
0705 ; 070501 ;
摘要
This paper presents an algorithm for locally adaptive template sizes in normalized cross-correlation (NCC) based image matching for measuring horizontal surface displacements of mass movements. After adaptively identifying candidate templates based on the image signal-to-noise ratio (SNR), the algorithm iteratively looks for the size at which the maximum cross-correlation coefficient attains a local peak and the matching position gets fixed. The algorithm is tested on modeled (deformed) images and applied to real bi-temporal images of different Earth surface mass movements. It is evaluated in comparison with globally (image-wide) fixed template sizes ranging from 11 to 101 pixels based on the improvement in the accuracy of displacement estimation and the SNR of image reconstruction. The results show that the algorithm could reduce the error of displacement estimation by up to over 90% (in the modeled case) and improve the SNR of the matching by up to over four times compared to the globally fixed template sizes highly reducing the effects of geometric distortion and noise. The algorithm pushes terrain displacement measurement from repeat images one step forward towards full automation. (C) 2012 International Society for Photogrammetry and Remote Sensing, Inc. (ISPRS) Published by Elsevier B.V. All rights reserved.
引用
收藏
页码:10 / 28
页数:19
相关论文
共 36 条
[1]  
Brown L.G., 1992, ACM COMPUT SURV, V24, P325, DOI DOI 10.1145/146370.146374
[2]   Glacier velocities across the central Karakoram [J].
Copland, Luke ;
Pope, Sierra ;
Bishop, Michael P. ;
Shroder, John F., Jr. ;
Clendon, Penelope ;
Bush, Andrew ;
Kamp, Ulrich ;
Seong, Yeong Bae ;
Owen, Lewis A. .
ANNALS OF GLACIOLOGY, 2009, 50 (52) :41-49
[3]  
Cyganek B, 2005, LECT NOTES COMPUT SC, V3522, P308
[4]   Measurement of Surface Displacement and Deformation of Mass Movements Using Least Squares Matching of Repeat High Resolution Satellite and Aerial Images [J].
Debella-Gilo, Misganu ;
Kaab, Andreas .
REMOTE SENSING, 2012, 4 (01) :43-67
[5]   Sub-pixel precision image matching for measuring surface displacements on mass movements using normalized cross-correlation [J].
Debella-Gilo, Misganu ;
Kaab, Andreas .
REMOTE SENSING OF ENVIRONMENT, 2011, 115 (01) :130-142
[6]   Symmetric stereo with multiple windowing [J].
Fusiello, A ;
Roberto, V ;
Trucco, E .
INTERNATIONAL JOURNAL OF PATTERN RECOGNITION AND ARTIFICIAL INTELLIGENCE, 2000, 14 (08) :1053-1066
[7]  
Gonzalez R.C., 2008, Digital Image Processing, V3rd
[8]   Monitoring ice shelf velocities from repeat MODIS and Landsat data - a method study on the Larsen∼C ice shelf, Antarctic Peninsula, and 10 other ice shelves around Antarctica [J].
Haug, T. ;
Kaab, A. ;
Skvarca, P. .
CRYOSPHERE, 2010, 4 (02) :161-178
[9]   Fast noise variance estimation [J].
Immerkaer, J .
COMPUTER VISION AND IMAGE UNDERSTANDING, 1996, 64 (02) :300-302
[10]  
Kääb A, 2000, PERMAFROST PERIGLAC, V11, P315, DOI 10.1002/1099-1530(200012)11:4<315::AID-PPP365>3.0.CO