
Proceedings Paper
Fast interactive elastic registration of 12-bit multi-spectral images with subvoxel accuracy using display hardwareFormat | Member Price | Non-Member Price |
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Paper Abstract
Multi-spectral images of human tissue taken in-vivo often contain image alignment problems as patients have difficulty
in retaining their posture during the acquisition time of 20 seconds. Previously, it has been attempted to correct motion
errors with image registration software developed for MR or CT data but these algorithms have been proven to be too
slow and erroneous for practical use with multi-spectral images. A new software package has been developed which
allows the user to play a decisive role in the registration process as the user can monitor the progress of the registration
continuously and force it in the right direction when it starts to fail. The software efficiently exploits videocard hardware
to gain speed and to provide a perfect subvoxel correspondence between registration field and display. An 8 bit graphic
card was used to efficiently register and resample 12 bit images using the hardware interpolation modes present on the
graphic card. To show the feasibility of this new registration process, the software was applied in clinical practice
evaluating the dosimetry for psoriasis and KTP laser treatment. The microscopic differences between images of normal
skin and skin exposed to UV light proved that an affine registration step including zooming and slanting is critical for a
subsequent elastic match to have success. The combination of user interactive registration software with optimal
addressing the potentials of PC video card hardware greatly improves the speed of multi spectral image registration.
Paper Details
Date Published: 8 March 2007
PDF: 8 pages
Proc. SPIE 6512, Medical Imaging 2007: Image Processing, 65121Z (8 March 2007); doi: 10.1117/12.711114
Published in SPIE Proceedings Vol. 6512:
Medical Imaging 2007: Image Processing
Josien P. W. Pluim; Joseph M. Reinhardt, Editor(s)
PDF: 8 pages
Proc. SPIE 6512, Medical Imaging 2007: Image Processing, 65121Z (8 March 2007); doi: 10.1117/12.711114
Show Author Affiliations
Herke Jan Noordmans, Univ. Medical Ctr. Utrecht (Netherlands)
Rowland de Roode, Univ. Medical Ctr. Utrecht (Netherlands)
Rowland de Roode, Univ. Medical Ctr. Utrecht (Netherlands)
Rudolf Verdaasdonk, Univ. Medical Ctr. Utrecht (Netherlands)
Published in SPIE Proceedings Vol. 6512:
Medical Imaging 2007: Image Processing
Josien P. W. Pluim; Joseph M. Reinhardt, Editor(s)
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