Efficient Computerized-Tomography Reconstruction Using Low-Cost FPGA-DSP Chip
Journal Title: Elektronika - Year 2017, Vol 21, Issue 1
Abstract
In this paper, filtered back-projection algorithm is optimally implemented using low-cost Spartan 3A-DSP 3400 chip. The optimization enables parallel implementation. The combination of the pixel parallelism and projection parallelism is presented to significantly reduce the total reconstruction time to produce the image. The applied data is presented in fixed point format to achieve efficient implementation with maximum speed. The selection of data bus-width is optimized with very little error and good visual quality required for medical images. Before implementation, the computer tomography (CT) reconstruction simulator is developed to provide a testing reference for the hardware implementation. Using the combination of the pixel parallelism and projection parallelism, the presented hardware design achieves image reconstruction of a 512-by-512 pixel image from 1024 projections in 134.8 ms using 50 MHz clock cycles. It achieves the reduction of the required number of clock cycles to form an image from projections by 60 % comparing to the state of the art of the reconstruction time using field programmable gate array (FPGA) design.
Authors and Affiliations
Bassam A. Abo-Elftooh, Mohamed H. El-Mahlawy, Mahmoud E. A. Gadallah
Keywords
Related Articles
- EP ID EP360860
- DOI 10.7251/ELS1721012A
- Views 75
- Downloads 0
Modular Environment for Development and Characterization of Tunable Energy Harvesting Systems
This paper presents the design and development process for an electromagnetic self-tuned vibrational energy harvester prototype. Most state-of-the-art publications present non-tunable or manually tunable vibrational ener...
Active Comb Filter Using Voltage Differencing Transconductance Amplifiers
A new active comb filter employing Voltage Differencing Transconductance Amplifiers (VDTAs) is proposed to eliminate the selected frequencies of different signals. The proposed filter is based on VDTAs, capacitors and re...
Model-driven Techniques for Data Model Synthesis
This article presents a survey of model-driven techniques for data model synthesis. During an extensive research,we identified more than 70 research papers in the field and more than 15 different graphical notations used...
Simulation of a Pick-and-Place Cube Robot by Means of the Simulation Software Kuka Sim Pro
In this work the creation of the program code for industrial robot and the simulation of a robot cell by means of the simulation software KUKA Sim Pro in version 2.2.2, is presented. Simulated and programmed is, in reali...
Hardware Implementation of FTC of Induction Machine on FPGA
In this paper, a new design method of Direct Torque Control using Space Vector Modulation (DTC-SVM) of an Induction Machine (IM), which is based on Fault Tolerant Control (FTC) is proposed. Due to its complexity, the FTC...