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Proceedings Paper

Nonlinear color segmentation of optical diffusion tomograms reconstructed by the photon average trajectory method
Author(s): Alexander B. Konovalov; Vitaly V. Vlasov; Dmitry V. Mogilenskikh; Igor V. Pavlov
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Paper Abstract

The photon average trajectory method has been recently investigated as a fast reconstruction technique for time-domain diffuse optical tomography. The main disadvantage of this method is that it reconstructs the tomograms blurred due to averaging over the spatial distributions of photons. To get information about actual boundary and shape of optical inhomogeneities being reconstructed, we propose the segmentation approach based on the generation of nonlinear analytical and statistical functions of correspondence between image intensity and color space. It is shown that for simple models (absorbing macro-inhomogeneities in a homogeneous scattering medium) the proposed approach allows the true structure of inhomogeneities to be reproduced almost completely. If a medium contains randomly inhomogeneous component, our segmentation method may give artifacts which should be removed on the basis of a priori information.

Paper Details

Date Published: 9 July 2009
PDF: 6 pages
Proc. SPIE 7369, Diffuse Optical Imaging II, 73690I (9 July 2009); doi: 10.1117/12.831694
Show Author Affiliations
Alexander B. Konovalov, Russian Federal Nuclear Ctr., Zababakhin Inst. of Applied Physics (Russian Federation)
Vitaly V. Vlasov, Russian Federal Nuclear Ctr., Zababakhin Inst. of Applied Physics (Russian Federation)
Dmitry V. Mogilenskikh, Russian Federal Nuclear Ctr., Zababakhin Inst. of Applied Physics (Russian Federation)
Igor V. Pavlov, Russian Federal Nuclear Ctr., Zababakhin Inst. of Applied Physics (Russian Federation)


Published in SPIE Proceedings Vol. 7369:
Diffuse Optical Imaging II
Rinaldo Cubeddu; Andreas H. Hielscher, Editor(s)

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