Complex shadow extraction

Karl S. Gudmundsson; Francis S. Cagatin

doi:10.1117/12.797120

3 September 2008 Complex shadow extraction

Proceedings Volume 7072, Optics and Photonics for Information Processing II; 707211 (2008) https://doi.org/10.1117/12.797120
Event: Optical Engineering + Applications, 2008, San Diego, California, United States

Abstract

This paper examines the shadow extraction problem associated with satellite images; namely the shadow component of the images. The present research extends our previous work on shadow extraction in simple scenes. Extraction of multivariable shadows caused by earth's rotation and satellite viewing angle is examined. Attempt is made to define the variables of such shadow component in a controlled lab environment in terms of the phase of the Fourier spectrum of the image, device a novel method for extracting complex shadow components from the image, and to create a meta-image suitable for change detection post processing.

Citation Download Citation

Karl S. Gudmundsson and Francis S. Cagatin "Complex shadow extraction", Proc. SPIE 7072, Optics and Photonics for Information Processing II, 707211 (3 September 2008); https://doi.org/10.1117/12.797120

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