Method for crosscorrelating images in the presence of geometric distortion |
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| Authors: | Chand G. Holborn D.M. |
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| Affiliation: | Cambridge Univ., UK; |
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| 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.<> |
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