Method for crosscorrelating images in the presence of geometric distortion
- 10 June 1993
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 29 (12) , 1078-1080
- https://doi.org/10.1049/el:19930720
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
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