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Global and local translation and magnification

, Jos H. van Deemter, Leon Cohen, Gabriel Cristobal, Aibing Rao
Published in SPIE
1997
Abstract

If we translate a function then all information about the translation appears in the phase of the Fourier transform of the translated function. Similarly if we magnify a function all information about the magnification appears in the phase of the scale transform. In the case where the function is translated or magnified and also warped we discuss how one can define approximate translation and magnification factors. We also discuss how these factors may depend on the phases and amplitude of functions. Partial answers to these questions are given. Also we discuss how one can define local and global translational and magnification factors.

About the journal
JournalData powered by TypesetStatistical and Stochastic Methods in Image Processing
PublisherData powered by TypesetSPIE
Open AccessNo