Presentation | 2009-08-28 A Study of Noninvasive Optical Parameters Determination in Scattering Medium Based on Diffused Optical Tomography Utilizing Only Backward Reemissions Seiki KAWASAKI, Yusuke MAEDA, Tadatoshi TANIFUJI, |
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Abstract(in Japanese) | (See Japanese page) |
Abstract(in English) | Image quality of time -resolved diffused optical tomography reconstructed by utilizing only backward reemissions has been studied. Estimated optical absorption coefficients (μ_a) of two-dimensional scattering medium of 80×40mm^2 has been studied. Experimental reemissions are simulated by superimposing Poisson random variables on theoretical reemissions calculated by finite difference time domain (FDTD) analysis. μ_a are estimated by minimizing least mean squares of theoretical and experimental reemissions amplitude utilizing Truncated Newton (TN) method. Relative difference from baseline in a single square absorbing target was 20.5% and the contrast for the two square absorbing targets with 12mm in a center-to-center separation was 86.5% when the targets are located at 8mm in depth. The image quality is degraded as a location of the targets becomes deeper. |
Keyword(in Japanese) | (See Japanese page) |
Keyword(in English) | Time-resolved diffused optical tomography / Truncated Newton method / FDTD analysis / Optical parameters |
Paper # | OFT2009-32 |
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Conference Information | |
Committee | OFT |
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Conference Date | 2009/8/20(1days) |
Place (in Japanese) | (See Japanese page) |
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Topics (in Japanese) | (See Japanese page) |
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Paper Information | |
Registration To | Optical Fiber Technology (OFT) |
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Language | JPN |
Title (in Japanese) | (See Japanese page) |
Sub Title (in Japanese) | (See Japanese page) |
Title (in English) | A Study of Noninvasive Optical Parameters Determination in Scattering Medium Based on Diffused Optical Tomography Utilizing Only Backward Reemissions |
Sub Title (in English) | |
Keyword(1) | Time-resolved diffused optical tomography |
Keyword(2) | Truncated Newton method |
Keyword(3) | FDTD analysis |
Keyword(4) | Optical parameters |
1st Author's Name | Seiki KAWASAKI |
1st Author's Affiliation | Department of Electrical and Electronics Engineering, Kitami Institute of Technology() |
2nd Author's Name | Yusuke MAEDA |
2nd Author's Affiliation | Department of Electrical and Electronics Engineering, Kitami Institute of Technology |
3rd Author's Name | Tadatoshi TANIFUJI |
3rd Author's Affiliation | Department of Electrical and Electronics Engineering, Kitami Institute of Technology |
Date | 2009-08-28 |
Paper # | OFT2009-32 |
Volume (vol) | vol.109 |
Number (no) | 179 |
Page | pp.pp.- |
#Pages | 4 |
Date of Issue |