Andreopoulos, Y; (2009) Comments on "phase-shifting for nonseparable 2-D haar wavelets". IEEE Transactions on Image Processing , 18 (8) 1897 -1898. 10.1109/TIP.2009.2021085.
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In their recent paper, Alnasser and Foroosh derive a wavelet-domain (in-band) method for phase-shifting of 2-D "nonseparable" Haar transform coefficients. Their approach is parametrical to the (a priori known) image translation. In this correspondence, we show that the utilized transform is in fact the separable Haar discrete wavelet transform (DWT). As such, wavelet-domain phase shifting can be performed using previously-proposed phase-shifting approaches that utilize the overcomplete DWT (ODWT), if the given image translation is mapped to the phase component and in-band position within the ODWT.
|Title:||Comments on "phase-shifting for nonseparable 2-D haar wavelets"|
|Open access status:||An open access version is available from UCL Discovery|
|Additional information:||© 2009 IEEE. Personal use of this material (accepted version) is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.|
|UCL classification:||UCL > School of BEAMS > Faculty of Engineering Science > Electronic and Electrical Engineering|
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