IMAGE REGISTRATION METHOD

The present invention relates to an image registration method, in particular it relates to an image registration method in for identifying translational shifts between images or signals of arbitrary dimension. The method for registering a plurality of images described herein comprises: obtaining a f...

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Bibliographic Details
Main Authors NIELSEN, Poul Michael Fonss, TABERNER, Andrew James, NASH, Martyn Peter, RASSOULIHA, Amir Haji
Format Patent
LanguageEnglish
French
German
Published 27.03.2019
Subjects
CALCULATING
COMPUTING
COUNTING
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
PHYSICS
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Summary:The present invention relates to an image registration method, in particular it relates to an image registration method in for identifying translational shifts between images or signals of arbitrary dimension. The method for registering a plurality of images described herein comprises: obtaining a frequency domain representation of one or more spatial domain or frequency domain functions or filters or kernels, wherein each function emphasises at least one image characteristic; combining functions into a single frequency domain representation function; and applying the combined frequency domain representation function to the images to determine relative displacement. In another aspect, the method for registering a plurality of images also comprises: applying functions to calculate shifts between images; applying phase unwrapping technique to exclude phase data outliers; and employing phase data to calculate subpixel shifts between the images.
Bibliography:Application Number: EP20170799735