title: Super resolution SPECT reconstruction with non-uniform attenuation.
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.
authors.affiliation: Beijing Laboratory of Intelligent Information Technology, School of Computer Science & Technology, Beijing Institute of Technology, Beijing 100081, China.
authors.forename: Ziye
authors.initials: Z
authors.lastname: Yan
authors.forename: Yao
authors.initials: Y
authors.lastname: Lu
authors.forename: Junhai
authors.initials: J
authors.lastname: Wen
authors.forename: Cuifen
authors.initials: C
authors.lastname: Li
mesh_terms: D000465:Algorithms; D003198:Computer Simulation; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D019047:Phantoms, Imaging; D015899:Tomography, Emission-Computed, Single-Photon / Q000295:instrumentation / Q000379:methods*