Title :
Method for crosscorrelating images in the presence of geometric distortion
Author :
Chand, G. ; Holborn, D.M.
Author_Institution :
Cambridge Univ., UK
fDate :
6/10/1993 12:00:00 AM
Abstract :
The conventional crosscorrelation function (XCF) used in temporal and spatial displacement measurement is unable to provide satisfactory results when linear distortion is also present in the signals. A ´nested´ correlation function (NCF) is proposed which produces accurate results, when the distortion is dispersive, with negligible computational overhead.
Keywords :
correlation methods; image processing; crosscorrelation function; dispersive distortion; geometric distortion; linear distortion; nested correlation function;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19930720
