Title :
Shadow detection and radiometric restoration in satellite high resolution images
Author :
Sarabandi, Pooya ; Yamazaki, Fumio ; Matsuoka, Masashi ; Kiremidjian, Anne
Author_Institution :
Dept. of Civil & Environ. Eng., Stanford Univ., CA
Abstract :
In this paper a new transformation which enables us to detect boundaries of cast shadows in high resolution satellite images is introduced. The transformation is based on color invariant indices. Different radiometric restoration techniques such as gamma correction, linear-correlation correction and histogram matching are introduced in order to restore the brightness of detected shadow area
Keywords :
edge detection; geophysical signal processing; geophysical techniques; image colour analysis; image resolution; image restoration; image texture; microwave measurement; radiometry; remote sensing; boundary detection; brightness restoration; color invariant indices; gamma correction; histogram matching; invariant color indices; linear-correlation correction; radiometric restoration techniques; satellite high resolution images; shadow area; shadow detection; texture analysis; Brightness; Earthquake engineering; Gamma ray detection; Gamma ray detectors; Histograms; Image resolution; Image restoration; Radiometry; Satellite broadcasting; Spatial resolution;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2004. IGARSS '04. Proceedings. 2004 IEEE International
Conference_Location :
Anchorage, AK
Print_ISBN :
0-7803-8742-2
DOI :
10.1109/IGARSS.2004.1369936
