Universiti Teknologi Malaysia Institutional Repository

An optical tomography system using a digital signal processor

A. Rahim , Ruzairi and Thiam, Chiam K. and Rahiman, Mohd. H. F. (2008) An optical tomography system using a digital signal processor. Sensors , 8 . 2082-2103 . ISSN 1424-8220

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Official URL: http://dx.doi.org/10.3390/s8042082


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 16×16 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.

Item Type:Article
Uncontrolled Keywords:digital signal processor, image reconstruction, optical tomography
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:12498
Deposited By: Liza Porijo
Deposited On:03 Jun 2011 05:19
Last Modified:22 Jul 2011 09:19

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