back-projection image reconstruction algorithm
Filtered Back Projection Algorithm on Computed Tomography (Ct) Scan
... filtered-back projection algorithm on computed tomography (CT) projection data of a Shepp-Logan head phantom to reconstruct ...CT Reconstruction on the data. Filtered back ...
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FPGA Based Online Data Acquisition System (DAS) for Optical Tomography Application
... In this work, a data acquisition system is developed specifically for the OT based on FPGA which has not been proposed previously based on the literature study we have done. The development is coded by using Verilog HDL ...
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Inverse Problem: Comparison between Linear Back-Projection Algorithm and Filtered Back-Projection Algorithm in Soft-Field Tomography
... The image reconstruction of process tomography, can be divided into two parts: forward problem and inverse problem ...signal projection, while the algorithm is solved later in the inverse ...
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Comparison of Different Reconstruction Algorithms for Decreasing the Exposure Dose during Digital Breast Tomosynthesis: A Phantom Study
... conventional reconstruction algorithm (filtered back projection: FBP [7]) and statis- tical iterative reconstruction (IR) algorithm (maximum likelihood expectation maximization: ...
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Iterative Reconstruction in Head CT: Image Quality of Routine and Low Dose Protocols in Comparison with Standard Filtered Back Projection
... mathematic algorithm, IR, was introduced to ...and image noise and may thus be used to lower noise at standard or improved resolution of ...the image reconstruction process. Once an ...
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Radiation Dose Reduction in Paranasal Sinus CT Using Model Based Iterative Reconstruction
... filtered back-projection series recon- structed with a bone algorithm and/or ob- tained with a low radiation dose (ie, BONE FBP SD, BONE FBP LD, SOFT FBP ...The image quality for the soft- ...
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The Object’s Reconstruction of CT Detection Based on Filtered Back Projection Algorithm
... Build up of Model. The General anti-projection process [4] is: original drawing, reconstruction from projection and reconstructed image. The vertex in the lower left corner of the square tray ...
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Instrumentation of particle conveying using electrical charge tomography
... Instrumentation systems employing a variety of ultrasonic techniques have been applied to a wide range of measurements in the chemical and process industries (Asher 1983). Ultrasonic sensors can be applied for process ...
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A Comparison of Reconstruction Algorithms Regarding Exposure Dose Reductions during Digital Breast Tomosynthesis
... cone-beam reconstruction solutions have been provided [9]. 2D image filtering via multiplication of the Fourier transform by a Ramp or Shepp–Logan (SL) filter kernel restores the proper impulse shape to the ...
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Reconstruction of Pet Image Based On Kernelized Expectation Maximization Method
... (MAP) reconstruction algorithms [7]. Evaluation of the HighlY constrained back-PRojection (HYPR) de-noising in conjunction with the maximum a posteriori (MAP) reconstruction for the micro PET- ...
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Application of Gradient Projection for Sparse Reconstruction to Compressed Sensing for Image Reconstruction of Electrical Capacitance Tomography
... sensing algorithm based on gradient projection for spare reconstruction (CS-GPSR) is applied to electrical capacitance tomography (ECT) image reconstruction in this ...CS-GPSR ...
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Review on Analytical and Iterative Reconstruction Algorithms for Computerized Tomography
... used algorithm for tomographic reconstruction is filtered back ...the projection data are first filtered then the filtered data is linearly smeared back along ray paths to form ...
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Simulation Studies on Image Reconstruction Algorithm for Portable Electrical Capacitance Tomography
... is image reconstruction using an appropriate ...with image reconstruction of ECT are ill-determined where the number of equations is less than the number of variables and ill-conditioned ...
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Fast 3D recognition for forensics and counter terrorism applications
... one image is used and the problem is then shifted towards the less computational intensive stripe indexing problem, 2) there is an explicit connected graph that makes surface reconstruction straightforward, ...
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Dual modality tomography for the monitoring of constituent volumes in multi component flows
... resistance reconstruction and Fig.5.4 (b) an optical reconstruction for the objects shown in ...useful image then a technique for deciding this mathematically is ...individual reconstruction ...
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A Prominent Analysis on Head Phantom Image using Correlation Coefficient
... The Radon Transformation is a fundamental tool which is used in various applications such as radar imaging, geophysical imaging, nondestructive testing and medical imaging [9]. Many publication exploit the Radon ...
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Analytical image reconstruction methods in emission tomography
... Tomographic methods do not generate three dimensional images of an object directly. Instead sectional 2-D im- ages are reconstructed from a set of projections. As the amount of data, or projections, is limited, there is ...
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Emphysema quantification using chest CT: influence of radiation dose reduction and reconstruction technique
... weight ≥ 80 kg). The tube current-time product was 60 mAs at routine dose and subsequently decreased to 33, 24 and 15 mAs to achieve 45%, 60% and 75% dose reduction, respectively. All four acquisitions were acquired ...
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Fourier Based Forward and Back Projectors in Iterative Fan Beam Tomographic Image Reconstruction
... the image spectrum with the frequency response of the detector blur ...each image pixel and the detector elements, and hence cannot be modeled exactly in the frequency ...
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A pilot study using low-dose Spectral CT and ASIR (Adaptive Statistical Iterative Reconstruction) algorithm to diagnose solitary pulmonary nodules
... enhanced image with that on enhanced weighted average images The results of both the CT number on iodine- enhanced images and the degree of enhancement showed that malignant nodules showed a significantly higher ...
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