Simulation of x-ray projections for 3D cone-beam tomography

Zhongyuan Qin; Xuan-qin Mu; Ping Wang; Yuanlong Cai

doi:10.1117/12.462535

12 April 2002 Simulation of x-ray projections for 3D cone-beam tomography

Zhongyuan Qin, Xuan-qin Mu, Ping Wang, Yuanlong Cai

Proceedings Volume 4536, International Workshop on Photonics and Imaging in Biology and Medicine; (2002) https://doi.org/10.1117/12.462535
Event: International Workshop on Photonics and Imaging in Biology and Medicine, 2001, Wuhan, China

Abstract

In this paper, we present a general approach to obtain the x-ray projections in cone-beam tomography in order to get rid of random factors in the measurement so as to support proceeding three dimensional (3D) reconstruction. First, the phantom is discretized into cubic volume through inverse transformation, then a generalized projection procedure is proposed to the digitized result without concerning what the phantom exactly be. In the second step line integrals are calculated to obtain the projection of each x-ray through accumulation of tri-linear interpolation. Considering projection angles, a rotation matrix is proposed to the x- ray source and the detector plane so we can get projections in arbitrary angles. In this approach the algorithm is easy to be extended and irregular objects can also be processed. The algorithm is implemented in Visual C++ and experiments with different models show satisfactory experimental results.

Citation Download Citation

Zhongyuan Qin, Xuan-qin Mu, Ping Wang, and Yuanlong Cai "Simulation of x-ray projections for 3D cone-beam tomography", Proc. SPIE 4536, International Workshop on Photonics and Imaging in Biology and Medicine, (12 April 2002); https://doi.org/10.1117/12.462535

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available