Relaxed Linearized Algorithms for Faster X-Ray CT Image Reconstruction PROJECT TITLE :Relaxed Linearized Algorithms for Faster X-Ray CT Image ReconstructionABSTRACT:Statistical image reconstruction (SIR) strategies are studied extensively for X-ray computed tomography (CT) because of the potential of acquiring CT scans with reduced X-ray dose while maintaining image quality. But, the longer reconstruction time of SIR methods hinders their use in X-ray CT in practice. To accelerate statistical methods, several optimization techniques have been investigated. Over-relaxation may be a common technique to speed up convergence of iterative algorithms. For instance, employing a relaxation parameter that's close to 2 in alternating direction methodology of multipliers (ADMM) has been shown to hurry up convergence significantly. This paper proposes a relaxed linearized augmented Lagrangian (AL) methodology that shows theoretical faster convergence rate with over-relaxation and applies the proposed relaxed linearized AL technique to X-ray CT image reconstruction issues. Experimental results with both simulated and real CT scan information show that the proposed relaxed algorithm (with ordered-subsets [OS] acceleration) is about twice as quick as the prevailing unrelaxed fast algorithms, with negligible computation and memory overhead. Did you like this research project? To get this research project Guidelines, Training and Code... Click Here facebook twitter google+ linkedin stumble pinterest Fuzzy Metric Space Induced by Intuitionistic Fuzzy Points and its Application to the Orienteering Problem A 65-nm CMOS Low-Power Impulse Radar System for Human Respiratory Feature Extraction and Diagnosis on Respiratory Diseases