Registration of Holographic Images Based on Integral Transformation
keywords: Registration of images, Fourier-Mellin transformation, holographic image, integral transformation
The paper describes the possibilities of using Fourier-Mellin transform for registering images of holographic interferograms. Registered holographic images will then allow automating their evaluation. Registration based on changes in image intensities using the discrete integral transforms was selected from the methods of registration. Whereas it was necessary to register the images, which are not only translated, but also rotated and with the change of scale, the Fourier-Mellin transform was used. Use of the image discrete transforms is original in this field, the proposed processing algorithm also contains simplified mean of calculating the angle of rotation of the test image instead of common Fourier-Mellin transformation method sequence.
reference: Vol. 31, 2012, No. 6+, pp. 1369–1383