Registration and BRDF extraction of airborne multi-angular images in different resolutions

Author

Liu, Q. ; Liu, Q.H. ; Xiao, Q. ; Tian, G.L. ; Li, X.W.

Author_Institution

Inst. of Remote Sensing Application, Acad. Sinica, Beijing, China

Volume

1

fYear

2001

fDate

2001

Firstpage

387

Abstract

An auto-registration algorithm is designed for multi-angular remote sensing, which refines the image warping function in a step-by-step way. It first uses a wavelet transform to degrade the original images to a series of low resolution ones, then constructs warping function with B-splines, and refines the B-splines according to control points found by a correlation based method. The algorithm is tested with images acquired in North-China by an airborne multi-angular TIR/VNIR imaging system. Results show the advantage of B-splines in comparison with polynomial or thin-plate splines. After registration is done, we give an example for BRDF extraction

Keywords

geophysical signal processing; image registration; image resolution; remote sensing; splines (mathematics); wavelet transforms; B-spline; BRDF extraction; North-China; TIR/VNIR imaging system; airborne multi-angular images; airborne multi-angular imaging system; auto-registration algorithm; bi-directional reflectance; control points; correlation based method; image warping function; multi-angular remote sensing; registration; resolutions; wavelet transform; Algorithm design and analysis; Content addressable storage; Electrical capacitance tomography; Geographic Information Systems; Image resolution; Polynomials; Potential well; Remote sensing; Spline; Surface fitting;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 2001. IGARSS '01. IEEE 2001 International

Conference_Location

Sydney, NSW

Print_ISBN

0-7803-7031-7

Type

conf

DOI

10.1109/IGARSS.2001.976167

Filename

976167