Performance Improvement of Tomographic Image Reconstruction Based on DSP Processors

This paper presents the use of a multiprocessor architecture for the performance improvement of tomographic image reconstruction. Image reconstruction in computed tomography (CT) is an intensive task for single-processor systems. We investigate the filtered image reconstruction suitability based on...

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Bibliographic Details
Published inIEEE transactions on instrumentation and measurement Vol. 58; no. 9; pp. 3295 - 3304
Main Authors Cruvinel, P.E., Pereira, M.F.L., Saito, J.H., da F. Costa, L.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.09.2009
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Architecture
Computation
Computed tomography
Computer architecture
Digital signal processing
DSP
Image reconstruction
Instrumentation
Instruments
Modems
Parallel processing
Performance enhancement
Physics
Platforms
Processors
Soil
tomographic measurements
X-rays
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Summary:This paper presents the use of a multiprocessor architecture for the performance improvement of tomographic image reconstruction. Image reconstruction in computed tomography (CT) is an intensive task for single-processor systems. We investigate the filtered image reconstruction suitability based on DSPs organized for parallel processing and its comparison with the Message Passing Interface (MPI) library. The experimental results show that the speedups observed for both platforms were increased in the same direction of the image resolution. In addition, the execution time to communication time ratios (Rt/Rc) as a function of the sample size have shown a narrow variation for the DSP platform in comparison with the MPI platform, which indicates its better performance for parallel image reconstruction.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0018-9456
1557-9662
DOI:10.1109/TIM.2009.2022378