An Optical Tomography System Using a Digital Signal Processor

The use of a personal computer together with a Data Acquisition System (DAQ) as the processing tool in optical tomography systems has been the norm ever since the beginning of process tomography. However, advancements in silicon fabrication technology allow nowadays the fabrication of powerful Digit...

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Main Authors: Mohd. Hafiz Fazalul Rahiman, Chiam Kok Thiam, Ruzairi Abdul Rahim
Format: Article
Language:English
Published: MDPI AG 2008-03-01
Series:Sensors
Subjects:
Online Access:http://www.mdpi.com/1424-8220/8/4/2082/
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author Mohd. Hafiz Fazalul Rahiman
Chiam Kok Thiam
Ruzairi Abdul Rahim
author_facet Mohd. Hafiz Fazalul Rahiman
Chiam Kok Thiam
Ruzairi Abdul Rahim
author_sort Mohd. Hafiz Fazalul Rahiman
collection DOAJ
description The use of a personal computer together with a Data Acquisition System (DAQ) as the processing tool in optical tomography systems has been the norm ever since the beginning of process tomography. However, advancements in silicon fabrication technology allow nowadays the fabrication of powerful Digital Signal Processors (DSP) at a reasonable cost. This allows this technology to be used in an optical tomography system since data acquisition and processing can be performed within the DSP. Thus, the dependency on a personal computer and a DAQ to sample and process the external signals can be reduced or even eliminated. The DSP system was customized to control the data acquisition process of 16x16 optical sensor array, arranged in parallel beam projection. The data collected was used to reconstruct the cross sectional image of the pipeline conveyor. For image display purposes, the reconstructed image was sent to a personal computer via serial communication. This allows the use of a laptop to display the tomogram image besides performing any other offline analysis.
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spelling doaj.art-ef00e675001d4938a4eb6e3bdd204dc32022-12-22T04:00:31ZengMDPI AGSensors1424-82202008-03-018420822103An Optical Tomography System Using a Digital Signal ProcessorMohd. Hafiz Fazalul RahimanChiam Kok ThiamRuzairi Abdul RahimThe use of a personal computer together with a Data Acquisition System (DAQ) as the processing tool in optical tomography systems has been the norm ever since the beginning of process tomography. However, advancements in silicon fabrication technology allow nowadays the fabrication of powerful Digital Signal Processors (DSP) at a reasonable cost. This allows this technology to be used in an optical tomography system since data acquisition and processing can be performed within the DSP. Thus, the dependency on a personal computer and a DAQ to sample and process the external signals can be reduced or even eliminated. The DSP system was customized to control the data acquisition process of 16x16 optical sensor array, arranged in parallel beam projection. The data collected was used to reconstruct the cross sectional image of the pipeline conveyor. For image display purposes, the reconstructed image was sent to a personal computer via serial communication. This allows the use of a laptop to display the tomogram image besides performing any other offline analysis.http://www.mdpi.com/1424-8220/8/4/2082/Optical tomographydigital signal processorimage reconstruction
spellingShingle Mohd. Hafiz Fazalul Rahiman
Chiam Kok Thiam
Ruzairi Abdul Rahim
An Optical Tomography System Using a Digital Signal Processor
Sensors
Optical tomography
digital signal processor
image reconstruction
title An Optical Tomography System Using a Digital Signal Processor
title_full An Optical Tomography System Using a Digital Signal Processor
title_fullStr An Optical Tomography System Using a Digital Signal Processor
title_full_unstemmed An Optical Tomography System Using a Digital Signal Processor
title_short An Optical Tomography System Using a Digital Signal Processor
title_sort optical tomography system using a digital signal processor
topic Optical tomography
digital signal processor
image reconstruction
url http://www.mdpi.com/1424-8220/8/4/2082/
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