[PDF] Top 20 Efficient implementation of a local tomography reconstruction algorithm

... In the example of 512 2 phantom size, the proposed method is executed with an acquired sinogram of width 272 pixels. The slice is extended to 572 pixels, and the Gaussian basis is configured to have 1345 functions in ... See full document

... The reconstruction of the material distribution inside the volume is a computationally very demanding process and in mathematical terms a highly ill-conditioned non-linear ...Computed Tomography (CT) ... See full document

... image reconstruction is a crucial part of ECT for concentration analysis, flow pattern recognition and velocity ...iterative algorithm implementation in ECT system is the time required to perform ... See full document

... We have modified the NR and CG algorithms to include mesh refinement techniques. h-refinement—the subdivision of elements in the initial rather coarse mesh—is fast and offers a number of additional advantages, such as ... See full document

... simplex algorithm was used to find the “best” orientation so as to minimize the cost ...to local minima; however, alternatives have not yet been ...(RBI) algorithm [16] could not be used in place of ... See full document

... on local image gradient ...on local image properties, the keypoint descriptor can be represented relative to this orientation and therefore achieve invariance to image ... See full document

... a local high mesh density around the optic nerve or pre-defined materials in local ...Electrical Tomography software packages which incorporate this ... See full document

... impedance tomography of biological objects, and proposes technical solutions for building the device as a whole, and in separate ...its implementation in the ready device are ...measuring ... See full document

... Liquid argon time projection chambers (LAr-TPCs), that are currently in development in various R&D programmes in Europe, Japan and the USA [1], are acknowledged to be a detector technology capable of meeting the ... See full document

... very efficient in a parallelised version (Hake, ...the implementation of these techniques in Object oriented C++ code using MPI (Message Passing Interface) ... See full document

... Abstract—Sparse reconstruction technique can be used to provide high-resolution imaging result for through-the-wall radar (TWR) ...imaging reconstruction algorithms usually require a tremendous amount of ... See full document

... the reconstruction algorithm, it was assumed that the biological medium is filled up with muscle only ...our algorithm is that the real part of the complex dielectric constant can`t be negative and ... See full document

... construction algorithm is the equipotential back-projec- tion ...element-based reconstruction algorithm was pro- posed in [7], but limited scalar/vectors can be recon- structed with this ...A ... See full document

... Motion corrupted data sets were constructed with either 4 or 12 orthogonal pairs of reoriented projections from the total of 64.1 ne degree of distortion in the reconstruct[r] ... See full document

... MAP algorithm and shows log likelihood values can be computed ...proposed algorithm results in savings in the required memory size and leads to a power efficient implementation of MAP ... See full document

... The resulting global algorithm has a speedup which remains in average greater than 80%. It allows us to deal efficiently with problems that has not been solved yet. The structure of the paper is as follows. ... See full document

... Ollinger, “Maximum likelihood reconstruction of transmission images in emission computed tomography via the EM algorithm,” IEEE Trans.. Ortega, Numerical Analysis: A Second Course.[r] ... See full document

... tomography and image reconstruction using deterministic methods and machine learning, the.. 19.[r] ... See full document

... In this work, a multi-feature algorithm is proposed to process four different features of the visibility data separately, with the data simulated on the LOFAR configuration. This method is driven by the ... See full document

... Abstract-- Elliptic Curve Cryptography (ECC), which allows smaller key length as compared to conventional public key cryptosystems, has become a very attractive choice in wireless mobile communication technology and ... See full document