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Proceedings Paper

Study on signal-to-noise ratio of an object embedded in turbid media
Author(s): Xiqin Zhang; Lijun Xu; Yeo Joon Hock
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Paper Abstract

In this study properties of diffuse light from a spherical media embedded in an infinite media was investigated. Light that migrates through the spherical media is considered as signal and light that does not propagate through the spherical media is considered as noise. The analytical solution of SNR (signal to noise ratio) was derived with diffusion theory. The spatial distributions of the fluence rate were analyzed and the contours of signal to noise ratio were obtained as light source was put in different positions. The relationship between the source detector separation corresponding to maximum SNR and light source position was discussed, which is helpful to determine an appropriate measurement position. The results acquired in this paper are useful for ultrasound-modulated optical tomography and tissue imaging with diffuse photon density waves.

Paper Details

Date Published: 10 September 2004
PDF: 8 pages
Proc. SPIE 5462, Biophotonics Micro- and Nano-Imaging, (10 September 2004); doi: 10.1117/12.532621
Show Author Affiliations
Xiqin Zhang, Nanyang Technological Univ. (Singapore)
Lijun Xu, Nanyang Technological Univ. (Singapore)
Yeo Joon Hock, Nanyang Technological Univ. (Singapore)


Published in SPIE Proceedings Vol. 5462:
Biophotonics Micro- and Nano-Imaging
Dario Anselmetti, Editor(s)

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