Depth estimation of absorbing object in turbid medium using two wavelengths – For high resolution in transillumination imaging of biological body –

Kohei Yamamoto, Trung Nghia Tran, Takeshi Namita, Yuji Kato, Koichi Shimizu

Research output: Contribution to journalArticle

Abstract

To attain high spatial-resolution in transillumination imaging with near-infrared light, a new technique was developed to estimate the depth of the absorber in turbid medium by convolution operation with a point spread function (PSF). We choose two wavelength at which the scattering property of the medium is different. The transillumination image at one of the wavelength is convolved with the PSF of another wavelength. Two images of alternative wavelengths are compared while changing the depth of the PSF. We can obtain the correct depth that gives minimum difference between the two convoluted images. This technique does not require the repetition of the unstable deconvolution operation. The effectiveness of the proposed technique was verified in experiments.

Original languageEnglish
Pages (from-to)O-150-O-151
JournalTransactions of Japanese Society for Medical and Biological Engineering
Volume52
DOIs
Publication statusPublished - 2014 Aug 17
Externally publishedYes

Keywords

  • Deconvolution
  • Depth estimation
  • Point spread function
  • Scattering suppression
  • Transillumination imaging

ASJC Scopus subject areas

  • Biomedical Engineering

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