OPTICAL TOMOGRAPHY SYSTEM: APPLICATION OF CHARGE COUPLED DEVICE (CCD) FOR SOLID AND TRANSPARENT OBJECTS DETECTION

2016 ◽  
Vol 78 (7-4) ◽  
Author(s):  
Juliza Jamaludin ◽  
Ruzairi Abdul Rahim ◽  
Herlina Abdul Rahim ◽  
Hafiz Fazalul Rahiman ◽  
Siti Zarina Mohd Muji ◽  
...  
Keyword(s):  
Image Reconstruction ◽  
Laser Diode ◽  
Optical Tomography ◽  
Pipeline System ◽  
Cross Sectional ◽  
Charge Coupled Device ◽  
Tomography System ◽  
Solid Objects ◽  
Transparent Objects ◽  
Objects Detection

This research presents an application of Charge Coupled Device (CCD) linear sensor and laser diode in an optical tomography system. These optoelectronic sensors are believed to detect solid objects rather than transparent objects. Based on the research results, the development of optical tomography system using Charge Coupled Device (CCD) and laser diode has helped to enhance the potential of these sensors in detecting high to low opacity objects. Experiments for detecting a solid rod, glass rod and transparent hollow straw in non-flowing crystal clear water were conducted in this study. Investigation on the effect of number of views also studied in this research. From the image reconstruction results, it clearly shows a cross-sectional image of a pipeline system with the existence of opaque and transparent objects in multiphase flows. For 320 views image reconstruction, it gives high resolution of image results compared to 160 views image reconstruction. 

Charge-coupled device based on optical tomography system in detecting solid and transparent objects in non-flowing crystal clear water

Optik ◽  
2017 ◽  
Vol 131 ◽  
pp. 813-825 ◽  
Author(s):  
Juliza Jamaludin ◽  
Ruzairi Abdul Rahim ◽  
Herlina Binti Abdul Rahim ◽  
Mohd Hafiz Fazalul Rahiman ◽  
Jemmy Mohd Rohani ◽  
...  
Keyword(s):  
Optical Tomography ◽  
Clear Water ◽  
Charge Coupled Device ◽  
Tomography System ◽  
Transparent Objects

Analysis on the Effect of Sensor Views in Image Reconstruction Produced by Optical Tomography System Using Charge-Coupled Device

2018 ◽  
Vol 27 (4) ◽  
pp. 1689-1696 ◽  
Author(s):  
Juliza Jamaludin ◽  
Ruzairi Abdul Rahim ◽  
Mohd. Hafiz Fazul Rahiman ◽  
Jemmy Mohd Rohani
Keyword(s):  
Image Reconstruction ◽  
Optical Tomography ◽  
Charge Coupled Device ◽  
Tomography System

Hardware Design of Laser Optical Tomography System for Detection of Bubbles Column

2013 ◽  
Vol 64 (5) ◽  
Author(s):  
Naizatul Shima Mohd Fadzil ◽  
Ruzairi Abdul Rahim ◽  
Mohd Safirin Karis ◽  
Siti Zarina Mohd Muji ◽  
Mohd Fadzli Abdul Sahib ◽  
...  
Keyword(s):  
Voltage Drop ◽  
Optical Tomography ◽  
Hardware Design ◽  
Bubble Columns ◽  
Two Phase ◽  
Vertical Column ◽  
Cross Sectional ◽  
Chemical Process Industry ◽  
Tomography System ◽  
Wide Range

This paper presents a hardware design and optical tomography application for fast cross sectional detection of single or two phase flows in pipes or bubble columns. Sixteen laser pointer transmitters and photodiode receivers are arranged at the object cross sectional boundary to detect the existence of bubbles inside a vertical column pipeline. A valve is installed at the bottom of the pipe to produce the source of bubbles. Due to the simple operation, good heat transfer and mass transfer of bubble columns, they can be applied in a wide range of applications in the chemical process industry. The size of the bubbles produced was estimated to be between 5 mm and 20 mm in diameter. The voltage drop at the sensor directly shows the existence of bubbles between the transmitter and receiver.

A Review of the Optical Tomography System

2014 ◽  
Vol 69 (8) ◽  
Author(s):  
Juliza Jamaludin ◽  
Ruzairi Abdul Rahim ◽  
Herlina Abdul Rahim ◽  
Naizatul Shima Mohd Fadzil ◽  
Mohd Hafiz Fazalul Rahiman ◽  
...  
Keyword(s):  
High Resolution ◽  
Image Reconstruction ◽  
Basic Principle ◽  
Radiation Source ◽  
Optical Tomography ◽  
Electrical Noise ◽  
Basic Construction ◽  
Tomography System ◽  
Tomography Method

Tomography is a method that has been used for image reconstruction in the medical and engineering fields. Optical tomography is one of the various methods applied in tomography systems. This tomography method is widely used in the medical and processing industries fields because of its special characteristics, such as immunity to electrical noise and interference, high resolution and its hard field sensors. The basic principle of the optical tomography system in measuring an object is based on its wave and radiation source. This article is a review of the characteristics of light and its interaction with matter, the types of optical tomography system, the basic construction of an optical tomography system, types of optoelectronic sensors and image reconstruction.

Labview Based Driver For Charge–Coupled Device Linear Image Sensor

2012 ◽  
Author(s):  
N. Ramli ◽  
M. N. Ibrahim ◽  
M. Idroas ◽  
F. K. Che Harun ◽  
N. H. Mahmood
Keyword(s):  
Output Signal ◽  
Optical Tomography ◽  
Optical Path Length ◽  
Image Sensor ◽  
Optical Path ◽  
Solid Particles ◽  
Optical Intensity ◽  
Charge Coupled Device ◽  
Tomography System ◽  
Tomographic Data

Kertas kerja ini menerangkan tentang pembangunan sistem pemacu untuk sensor imej lelurus peranti pengecas gandingan (CCD) dalam system tomografi optik berasaskan perisian LabVIEW. Sensor imej lelurus CCD jenis SONY ILX551A yang mempunyai 2048 piksel yang efektif dengan setiap pixel bersaiz 14 mikron telah digunakan. Sensor ini memerlukan isyarat-isyarat jam (ΦROG dan ΦCLK) yang sesuai sebelum nilai-nilai piksel yang mewakili keamatan optik yang diukur dalam voltan dapat dibaca secara sesiri. Keluaran dari CCD adalah keamatan optik yang diukur dalam unit voltan atau bayangan objek yang memotong alur cahaya iaitu panjang laluan di antara punca cahaya dan sensor CCD. Apabila pepejal menghalang sebahagian laluan optik, bayangan objek akan terpancar ke atas beberapa piksel sensor CCD yang terlibat, dan nilai keluaran didapati. Lokasi objek yang tepat dari isyarat keluaran untuk beberapa keadaan adalah penting untuk mengesahkan isyarat jam adalah sesuai untuk sensor Sony ILX551A. Hasil keputusan menunjukkan isyarat jam pada frekuensi 1MHz yang dikenakan dikenakan kepada sensor CCD Sony ILX551A berjaya dijanakan dan data tomografi mampu diperolehi. Kata kunci: Tomografi optik; LabVIEW; sensor imej linar CCD; unjuran This paper describes the development of LabVIEW based driver for charge-coupled device (CCD) linear image sensor in optical tomography system. The Sony ILX551A CCD linear image sensor contains 2048 effective pixels, each pixel approximately 14 microns in size. The sensor requires suitable clocking signals (ΦROG and ΦCLK) before the pixel values that represent the attenuated optical intensity can be serially read. The output from the CCD is the optical intensity measured in voltage or shadow of the object intercepting the optical beam, pathlength between light source and the CCD linear image sensor. When solid particles blocking certain area of the optical path length, the shadow of the object will be casted on several affected pixels of the linear image sensor, and value on the output signal will be obtained. The exact location of objects on output signal produced for various conditions is important in order to verify the proper clocking signals generated for Sony ILX551A. The results demonstrate that the clocking signal at 1MHz frequency for the CCD Sony ILX551A is successfully generated and capable of acquiring tomographic data. Key words: CCD linear image sensor; LabVIEW; projection; optical tomography

scholarly journals A Review of Tomography System

2013 ◽  
Vol 64 (5) ◽  
Author(s):  
Juliza Jamaludin ◽  
Mohd Zikrillah Zawahir ◽  
Ruzairi Abdul Rahim ◽  
Fazlul Rahman Mohd Yunus ◽  
Nor Muzakkir Nor Ayob ◽  
...  
Keyword(s):  
Image Reconstruction ◽  
Cross Sectional ◽  
Tomography System ◽  
Paper Review

Tomography system is a method that being used to reconstruct a cross sectional image in vessel or pipeline. This method is widely used in medical and industrial fields. The aim of this paper is to provide an overview of tomography system based on its basics construction, types of sensors, its applications in today’s industry, and image reconstruction. This paper review consists of literature citations which related with tomography system.

Introducing an Application of a Charged Coupled Device (CCD) in an Optical Tomography System

2015 ◽  
Vol 73 (3) ◽  
Author(s):  
Juliza Jamaludin ◽  
Ruzairi Abdul Rahim ◽  
Herlina Abdul Rahim ◽  
Hafiz Fazalul Rahiman ◽  
Siti Zarina Mohd Muji ◽  
...  
Keyword(s):  
Image Reconstruction ◽  
Basic Principle ◽  
High Performance ◽  
Optical Tomography ◽  
Video Camera ◽  
Displacement Measurement ◽  
Basic Construction ◽  
Tomography System ◽  
Internal Object

A tomographic system is a method used for capturing an image of an internal object section. Optical tomography is one method which widely used in medical and industrial fields. This paper reviews several applications of Charged Coupled Devices (CCD) and introduces an application of a CCD in an optical tomography system. Most of the previous research used this component for displacement measurement and as a video camera. This paper discusses its basic principle of operation, basic construction, its criteria, application, and its advantages compared to other optoelectronic sensors  available in today’s market. The applications of this sensor in fields such as astronomy and medical has proved the ability and the good performance of CCD in capturing images. This sensor should widen its usage in optical tomography fields because it can give high performance in image reconstruction. 

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