Super resolution SPECT reconstruction with non-uniform attenuation

Ziye Yan; Yao Lu; Junhai Wen; Cuifen Li

doi:10.1016/j.compbiomed.2012.02.005

Super resolution SPECT reconstruction with non-uniform attenuation

Comput Biol Med. 2012 Jun;42(6):651-6. doi: 10.1016/j.compbiomed.2012.02.005. Epub 2012 Mar 20.

Authors

Ziye Yan¹, Yao Lu, Junhai Wen, Cuifen Li

Affiliation

¹ Beijing Laboratory of Intelligent Information Technology, School of Computer Science & Technology, Beijing Institute of Technology, Beijing 100081, China.

PMID: 22440892
DOI: 10.1016/j.compbiomed.2012.02.005

Abstract

In this paper, based on Novikov's explicit inversion formula for the attenuated Radon transform, we present a super resolution SPECT reconstruction algorithm with compensation for non-uniform attenuation. Unlike the former methods improving the medical image resolution via super resolution (SR) in the reconstructed image, the proposed method apply the SR algorithm in the low resolution (LR) sinogram, which needs only 1-D shift of the detector, and the PSF is easy to obtain. Simulation results show that our reconstruction algorithm is effective.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Algorithms*
Computer Simulation
Image Processing, Computer-Assisted / methods*
Phantoms, Imaging
Tomography, Emission-Computed, Single-Photon / instrumentation
Tomography, Emission-Computed, Single-Photon / methods*