25 October 2005 Image reconstruction using spatial sensitivity profile with the constraint of spatial frequency in image for near-infrared topography
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Abstract
The spatial resolution of current near-infrared topography is not enough for clinical application. In this study, the image reconstruction algorithm using prior knowledge about spatial sensitivity profile in the tissue and constraint of spatial frequency in image was proposed and was evaluated by simulation. The spatial resolution of topographic image obtained from the image reconstruction method is better than that obtained from the conventional mapping-interpolation method. The most appropriate cut-off frequency for the constraint for the image reconstruction method depends on the arrangement of fibres.
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Hiroshi Kawaguchi, Hiroshi Kawaguchi, Eiji Okada, Eiji Okada, } "Image reconstruction using spatial sensitivity profile with the constraint of spatial frequency in image for near-infrared topography", Proc. SPIE 5859, Photon Migration and Diffuse-Light Imaging II, 585915 (25 October 2005); doi: 10.1117/12.632871; https://doi.org/10.1117/12.632871
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