Effect of projection number on slice image quality of micro-CT system

Zheng Fang; Hui Gong; Guang Yang; Tianxu Zhang

doi:10.1117/12.833053

30 October 2009 Effect of projection number on slice image quality of micro-CT system

Zheng Fang, Hui Gong, Guang Yang, Tianxu Zhang

Proceedings Volume 7497, MIPPR 2009: Medical Imaging, Parallel Processing of Images, and Optimization Techniques; 74972B (2009) https://doi.org/10.1117/12.833053
Event: Sixth International Symposium on Multispectral Image Processing and Pattern Recognition, 2009, Yichang, China

Abstract

The number of projection affects the reconstruction quality in computed tomography system. Larger projection number will lead to better reconstruction quality. Infinite projections can reconstruct the specimen without mathematical error. On the other hand, less projection number can reduce the radiation dose, save time and keep the patients comfortable. The optimal number of projection compromises both the mathematical accuracy and real-life requirement. The purpose of this paper is to find the relationship between the projection number and the reconstruction quality. A micro-CT system is developed to validate the relationship between projection number and reconstruction quality. But the actual precision and signal to noise ratio is hard to find in experiments, because the sample are not standard whose physical characteristics are certain. We can only provide limited projection number and get relative reconstruction quality in the experiment. Half-scan method can reduce radiation dose, and it can achieve better results with sufficient sampling.

Citation Download Citation

Zheng Fang, Hui Gong, Guang Yang, and Tianxu Zhang "Effect of projection number on slice image quality of micro-CT system", Proc. SPIE 7497, MIPPR 2009: Medical Imaging, Parallel Processing of Images, and Optimization Techniques, 74972B (30 October 2009); https://doi.org/10.1117/12.833053

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