Cite details and abstract

@INPROCEEDINGS{Cox93,
        AUTHOR             = {G. S. Cox and G. de Jager},
        BOOKTITLE          = {Proceedings of the Fourth South Affrican Workshop on Patter Recognition},
        MONTH              = nov,
        PAGES              = {152-6},
        TITLE              = {Template Matching with Invariance},
        YEAR               = {1993},
	ABSTRACT 	   = {

This paper introduces variations on the template matching theme that extend its usefulness by providing invariance to mean intensity-level variations, certain geometric transformations and partial obscurations of the target object in the image. First order statistics of the pixel by pixel differences between the template and the image are used as a match measure in order to provide invariance to mean intensity-level differences. It is shown how scale and translation invariance can be achieved by using the Fourier-Mellin transform. Rotation invariance is achieved by preprocessing with a polar coordinate transform before using a modified Fourier-Mellin transform. Tessellated sub-templates are used to ignore the influence of obscurations on an otherwise matching object when calculating the match measure. } }