Derivation of scatter kernel in CBCT imaging system

Heng Li; Radhe Mohan; X. Ronald Zhu

doi:10.1109/ACSSC.2006.355082

Derivation of scatter kernel in CBCT imaging system

Heng Li, Radhe Mohan, X. Ronald Zhu

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

1 Scopus citations

Abstract

An edge spread function method has been developed to determine the scatter kernel in kilo-voltage (kV) cone beam computed tomographic (CBCT) imaging system. We modeled the scatter as a depth dependent convolution kernel, and the kernel was derived for different object thickness up to 41cm from measured data without assuming any empirical trial function for a Varian Trilogy CBCT system. The derived kernel can then be used for correcting the projection data, or incorporated in the reconstruction process.

Original language	English (US)
Title of host publication	Conference Record of the 40th Asilomar Conference on Signals, Systems and Computers, ACSSC '06
Pages	1851-1854
Number of pages	4
DOIs	https://doi.org/10.1109/ACSSC.2006.355082
State	Published - 2006
Externally published	Yes
Event	40th Asilomar Conference on Signals, Systems, and Computers, ACSSC '06 - Pacific Grove, CA, United States Duration: Oct 29 2006 → Nov 1 2006

Publication series

Name	Conference Record - Asilomar Conference on Signals, Systems and Computers
ISSN (Print)	1058-6393

Conference

Conference	40th Asilomar Conference on Signals, Systems, and Computers, ACSSC '06
Country/Territory	United States
City	Pacific Grove, CA
Period	10/29/06 → 11/1/06

ASJC Scopus subject areas

Signal Processing
Computer Networks and Communications

Access to Document

10.1109/ACSSC.2006.355082

Cite this

Derivation of scatter kernel in CBCT imaging system. / Li, Heng; Mohan, Radhe; Zhu, X. Ronald.
Conference Record of the 40th Asilomar Conference on Signals, Systems and Computers, ACSSC '06. 2006. p. 1851-1854 4176892 (Conference Record - Asilomar Conference on Signals, Systems and Computers).

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

Li, H, Mohan, R & Zhu, XR 2006, Derivation of scatter kernel in CBCT imaging system. in Conference Record of the 40th Asilomar Conference on Signals, Systems and Computers, ACSSC '06., 4176892, Conference Record - Asilomar Conference on Signals, Systems and Computers, pp. 1851-1854, 40th Asilomar Conference on Signals, Systems, and Computers, ACSSC '06, Pacific Grove, CA, United States, 10/29/06. https://doi.org/10.1109/ACSSC.2006.355082

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AB - An edge spread function method has been developed to determine the scatter kernel in kilo-voltage (kV) cone beam computed tomographic (CBCT) imaging system. We modeled the scatter as a depth dependent convolution kernel, and the kernel was derived for different object thickness up to 41cm from measured data without assuming any empirical trial function for a Varian Trilogy CBCT system. The derived kernel can then be used for correcting the projection data, or incorporated in the reconstruction process.

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Derivation of scatter kernel in CBCT imaging system

Abstract

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