Line-ratio based ring artifact correction method using transfer function

Daejoong Oh; Dosik Hwang; Younguk Kim

doi:10.1117/12.2217113

Line-ratio based ring artifact correction method using transfer function

Daejoong Oh, Dosik Hwang, Younguk Kim

Department of Electrical and Electronic Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Computed tomography (CT) has been used for medical purposes. However there are many artifacts at CT images and that makes distorted image. Ring artifact is caused by non-uniform sensitivity of detectors and makes ring shape artifact. Line-ratio method was proposed to solve the problem however there are some problem at specific case. Therefore we propose advanced method to correct ring artifact using transfer function. As a result, ring artifacts can be removed at more global cases. Simulation data shows the proposed method outperforms the conventional line-ratio method.

Original language	English
Title of host publication	Medical Imaging 2016
Subtitle of host publication	Physics of Medical Imaging
Editors	Despina Kontos, Joseph Y. Lo, Thomas G. Flohr
Publisher	SPIE
ISBN (Electronic)	9781510600188
DOIs	https://doi.org/10.1117/12.2217113
Publication status	Published - 2016
Event	Medical Imaging 2016: Physics of Medical Imaging - San Diego, United States Duration: 2016 Feb 28 → 2016 Mar 2

Publication series

Name	Progress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume	9783
ISSN (Print)	1605-7422

Other

Other	Medical Imaging 2016: Physics of Medical Imaging
Country/Territory	United States
City	San Diego
Period	16/2/28 → 16/3/2

Bibliographical note

Publisher Copyright:
© 2016 SPIE.

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Biomaterials
Radiology Nuclear Medicine and imaging

Access to Document

10.1117/12.2217113

Cite this

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title = "Line-ratio based ring artifact correction method using transfer function",

abstract = "Computed tomography (CT) has been used for medical purposes. However there are many artifacts at CT images and that makes distorted image. Ring artifact is caused by non-uniform sensitivity of detectors and makes ring shape artifact. Line-ratio method was proposed to solve the problem however there are some problem at specific case. Therefore we propose advanced method to correct ring artifact using transfer function. As a result, ring artifacts can be removed at more global cases. Simulation data shows the proposed method outperforms the conventional line-ratio method.",

author = "Daejoong Oh and Dosik Hwang and Younguk Kim",

note = "Publisher Copyright: {\textcopyright} 2016 SPIE.; Medical Imaging 2016: Physics of Medical Imaging ; Conference date: 28-02-2016 Through 02-03-2016",

year = "2016",

doi = "10.1117/12.2217113",

language = "English",

series = "Progress in Biomedical Optics and Imaging - Proceedings of SPIE",

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Oh, D, Hwang, D & Kim, Y 2016, Line-ratio based ring artifact correction method using transfer function. in D Kontos, JY Lo & TG Flohr (eds), Medical Imaging 2016: Physics of Medical Imaging., 978335, Progress in Biomedical Optics and Imaging - Proceedings of SPIE, vol. 9783, SPIE, Medical Imaging 2016: Physics of Medical Imaging, San Diego, United States, 16/2/28. https://doi.org/10.1117/12.2217113

Line-ratio based ring artifact correction method using transfer function. / Oh, Daejoong; Hwang, Dosik; Kim, Younguk.

Medical Imaging 2016: Physics of Medical Imaging. ed. / Despina Kontos; Joseph Y. Lo; Thomas G. Flohr. SPIE, 2016. 978335 (Progress in Biomedical Optics and Imaging - Proceedings of SPIE; Vol. 9783).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Line-ratio based ring artifact correction method using transfer function

AU - Oh, Daejoong

AU - Hwang, Dosik

AU - Kim, Younguk

PY - 2016

Y1 - 2016

N2 - Computed tomography (CT) has been used for medical purposes. However there are many artifacts at CT images and that makes distorted image. Ring artifact is caused by non-uniform sensitivity of detectors and makes ring shape artifact. Line-ratio method was proposed to solve the problem however there are some problem at specific case. Therefore we propose advanced method to correct ring artifact using transfer function. As a result, ring artifacts can be removed at more global cases. Simulation data shows the proposed method outperforms the conventional line-ratio method.

AB - Computed tomography (CT) has been used for medical purposes. However there are many artifacts at CT images and that makes distorted image. Ring artifact is caused by non-uniform sensitivity of detectors and makes ring shape artifact. Line-ratio method was proposed to solve the problem however there are some problem at specific case. Therefore we propose advanced method to correct ring artifact using transfer function. As a result, ring artifacts can be removed at more global cases. Simulation data shows the proposed method outperforms the conventional line-ratio method.

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M3 - Conference contribution

AN - SCOPUS:84978829557

T3 - Progress in Biomedical Optics and Imaging - Proceedings of SPIE

BT - Medical Imaging 2016

A2 - Kontos, Despina

A2 - Lo, Joseph Y.

A2 - Flohr, Thomas G.

PB - SPIE

T2 - Medical Imaging 2016: Physics of Medical Imaging

Y2 - 28 February 2016 through 2 March 2016

ER -

Line-ratio based ring artifact correction method using transfer function

Abstract

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