Suppression of scattering effect using frequency-distance relation in optical CT reconstruction

The scattering effect in biological tissue is one of the most difficult problems to realize an optical computerised tomography (CT). To suppress the scattering effect in a reconstructed image, a fundamental study has been conducted on the deconvolution technique using a point spread function (PSF). The image blurring due to the scattering can be considered as the convolution of the PSF of a scattering medium. Therefore, if we can find an appropriate PSF, we can suppress the scattering effect by the deconvolution. To improve the deconvolution technique further, we have applied the frequency-distance relation to optical CT reconstruction and examined its effectiveness.