Suppression of scattering effect of optical CT image using point spread function

Yoichi Onodera, Yuji Kato, Koichi Shimizu

Research output: Contribution to journalArticle

Abstract

With the recent progress of an optical technology, the feasibility of the optical cross-sectional imaging of an animal body or an optical CT has been pointed out. The strong scattering at biological tissue is one of the most difficult problems to realize the optical CT. To suppress the scattering effect in a reconstructed image of the optical CT, 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 distribution of the absorption coefficient and the PSF of a scattering medium. Therefore, if we can find an appropriate PSF, we may be able to suppress the scattering effect by deconvolution using the PSF. In the conventional deconvolution technique, a single PSF defined according to the thickness of the scattering medium has been used. However, the suppression of the scattering effect has not been sufficient since the blurring effect is depth-dependent in the scattering medium. We developed a new technique to incorporate the depth-dependent PSF in the reconstruction process of the optical CT. In computer simulation, the effect of the scattering suppression was demonstrated in the reconstruction of the optical CT image.

Original languageEnglish
Pages (from-to)400-406
Number of pages7
JournalJapanese Journal of Medical Electronics and Biological Engineering
Volume35
Issue number4
Publication statusPublished - 1997
Externally publishedYes

Fingerprint

Optical transfer function
Scattering
Deconvolution
Convolution
Animals
Tissue
Imaging techniques
Computer simulation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Suppression of scattering effect of optical CT image using point spread function. / Onodera, Yoichi; Kato, Yuji; Shimizu, Koichi.

In: Japanese Journal of Medical Electronics and Biological Engineering, Vol. 35, No. 4, 1997, p. 400-406.

Research output: Contribution to journalArticle

@article{ca3db3b55bfc48f18454ba24afdaabdc,
title = "Suppression of scattering effect of optical CT image using point spread function",
abstract = "With the recent progress of an optical technology, the feasibility of the optical cross-sectional imaging of an animal body or an optical CT has been pointed out. The strong scattering at biological tissue is one of the most difficult problems to realize the optical CT. To suppress the scattering effect in a reconstructed image of the optical CT, 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 distribution of the absorption coefficient and the PSF of a scattering medium. Therefore, if we can find an appropriate PSF, we may be able to suppress the scattering effect by deconvolution using the PSF. In the conventional deconvolution technique, a single PSF defined according to the thickness of the scattering medium has been used. However, the suppression of the scattering effect has not been sufficient since the blurring effect is depth-dependent in the scattering medium. We developed a new technique to incorporate the depth-dependent PSF in the reconstruction process of the optical CT. In computer simulation, the effect of the scattering suppression was demonstrated in the reconstruction of the optical CT image.",
author = "Yoichi Onodera and Yuji Kato and Koichi Shimizu",
year = "1997",
language = "English",
volume = "35",
pages = "400--406",
journal = "Japanese Journal of Medical Electronics and Biological Engineering",
issn = "0021-3292",
publisher = "Nihon M E Gakkai",
number = "4",

}

TY - JOUR

T1 - Suppression of scattering effect of optical CT image using point spread function

AU - Onodera, Yoichi

AU - Kato, Yuji

AU - Shimizu, Koichi

PY - 1997

Y1 - 1997

N2 - With the recent progress of an optical technology, the feasibility of the optical cross-sectional imaging of an animal body or an optical CT has been pointed out. The strong scattering at biological tissue is one of the most difficult problems to realize the optical CT. To suppress the scattering effect in a reconstructed image of the optical CT, 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 distribution of the absorption coefficient and the PSF of a scattering medium. Therefore, if we can find an appropriate PSF, we may be able to suppress the scattering effect by deconvolution using the PSF. In the conventional deconvolution technique, a single PSF defined according to the thickness of the scattering medium has been used. However, the suppression of the scattering effect has not been sufficient since the blurring effect is depth-dependent in the scattering medium. We developed a new technique to incorporate the depth-dependent PSF in the reconstruction process of the optical CT. In computer simulation, the effect of the scattering suppression was demonstrated in the reconstruction of the optical CT image.

AB - With the recent progress of an optical technology, the feasibility of the optical cross-sectional imaging of an animal body or an optical CT has been pointed out. The strong scattering at biological tissue is one of the most difficult problems to realize the optical CT. To suppress the scattering effect in a reconstructed image of the optical CT, 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 distribution of the absorption coefficient and the PSF of a scattering medium. Therefore, if we can find an appropriate PSF, we may be able to suppress the scattering effect by deconvolution using the PSF. In the conventional deconvolution technique, a single PSF defined according to the thickness of the scattering medium has been used. However, the suppression of the scattering effect has not been sufficient since the blurring effect is depth-dependent in the scattering medium. We developed a new technique to incorporate the depth-dependent PSF in the reconstruction process of the optical CT. In computer simulation, the effect of the scattering suppression was demonstrated in the reconstruction of the optical CT image.

UR - http://www.scopus.com/inward/record.url?scp=0031459711&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0031459711&partnerID=8YFLogxK

M3 - Article

VL - 35

SP - 400

EP - 406

JO - Japanese Journal of Medical Electronics and Biological Engineering

JF - Japanese Journal of Medical Electronics and Biological Engineering

SN - 0021-3292

IS - 4

ER -