Automated lane detection of gel electrophoresis image using false peak elimination / Ros Surya Taher

Large numbers of previous work regarding the study of lane detection in DNA gel image have been proposed and performed on good quality images. Current lane detection methods that are available do not accommodate techniques that can be performed automatically on poor DNA gel image. Lane detection is...

Full description

Saved in:

Bibliographic Details
Main Author:	Taher, Ros Surya
Format:	Thesis
Language:	English
Published:	2017
Subjects:	Analytical chemistry
Online Access:	https://ir.uitm.edu.my/id/eprint/82718/1/82718.pdf
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my-uitm-ir.82718
record_format	uketd_dc
spelling	my-uitm-ir.827182024-01-20T01:23:27Z Automated lane detection of gel electrophoresis image using false peak elimination / Ros Surya Taher 2017 Taher, Ros Surya Analytical chemistry Large numbers of previous work regarding the study of lane detection in DNA gel image have been proposed and performed on good quality images. Current lane detection methods that are available do not accommodate techniques that can be performed automatically on poor DNA gel image. Lane detection is the first step in any gel image analysis techniques which involved tedious and time-consuming tasks. The accuracy of this step is often compromised by technical variation inherent to DNA gel image. For that reason, the aim of this thesis is to identify and propose a method that is effective in detecting the lane in poor DNA gel image of plants. The imperfection of DNA gel image caused by the electrophoresis or during the acquisition of the gel image causes many types of noises, which contaminate the resulting image. These errors and noises significantly affect the processing and analysis of the DNA gel image. The conducted experiment examines 184 poor DNA gel images collected from Agrobiodiversity and Environment Research Centre, Institut Penyelidikan dan Kemajuan Pertanian Malaysia (MARDI), Malaysia. The DNA gel images were produced by electrophoresis-based method using polymerase chain reaction (PCR)-based marker system. There are two highlighted aspects performed to achieve the objective of this thesis that are image enhancement and lane detection. The image enhancement of the poor DNA gel image is performed using two different approaches that are spatial and frequency filtering. The two approaches are compared and the quality of the enhanced images was accessed and evaluated using objective image quality metric that is peak signal-to-noise ratio (PSNR). For lane detection, we describe the convention of threshold value in the analysis of poor DNA gel image to eliminate false peak contained in the intensity profile obtained from the enhanced image data projection. A false peak elimination method was proposed in which a set of threshold interval was applied in the peak detection process to eliminate the false peak and retain the true peaks representing the lane’s border. The output of this method is used to track the lane’s border, further the individual lane is identified. Evaluation of the results from the proposed method in detecting the correct lanes was done by carrying out the analysis based on visual observation. Later, the performance of the method was evaluated empirically where the performance being assessed according to the discrepancy measures on the outcome of the lane detection process using confusion matrix. Based on the two approaches of image enhancement process, the average PSNR for the spatial domain filtering is 42.4727 dB whereas frequency domain filtering is 39.1417 dB. Therefore, spatial doman filtering become an exceptional approach for the enhancement of the poor DNA gel images. Further, the performance of the false peak elimination method proposed in lane detection and tracking process results with recall rate and accuracy of detecting the true peaks are 97.63% and 87.88% on poor DNA gel images while 99.57% and 95.96% on good DNA gel images. This finding shows that the proposed false peak elimination method, utilizing a set of optimal threshold interval, proves to be a promising lane detection method for both poor and good quality DNA gel images. Additionally, when the tasks of lane detection and tracking are implement automatically, the false peaks can be adequately eliminated and significantly ease the subsequent process of DNA gel image analysis. 2017 Thesis https://ir.uitm.edu.my/id/eprint/82718/ https://ir.uitm.edu.my/id/eprint/82718/1/82718.pdf text en public phd doctoral Universiti Teknologi MARA (UiTM) Faculty of Computer and Mathematical Sciences Jamil, Nursuriati
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
language	English
advisor	Jamil, Nursuriati
topic	Analytical chemistry
spellingShingle	Analytical chemistry Taher, Ros Surya Automated lane detection of gel electrophoresis image using false peak elimination / Ros Surya Taher
description	Large numbers of previous work regarding the study of lane detection in DNA gel image have been proposed and performed on good quality images. Current lane detection methods that are available do not accommodate techniques that can be performed automatically on poor DNA gel image. Lane detection is the first step in any gel image analysis techniques which involved tedious and time-consuming tasks. The accuracy of this step is often compromised by technical variation inherent to DNA gel image. For that reason, the aim of this thesis is to identify and propose a method that is effective in detecting the lane in poor DNA gel image of plants. The imperfection of DNA gel image caused by the electrophoresis or during the acquisition of the gel image causes many types of noises, which contaminate the resulting image. These errors and noises significantly affect the processing and analysis of the DNA gel image. The conducted experiment examines 184 poor DNA gel images collected from Agrobiodiversity and Environment Research Centre, Institut Penyelidikan dan Kemajuan Pertanian Malaysia (MARDI), Malaysia. The DNA gel images were produced by electrophoresis-based method using polymerase chain reaction (PCR)-based marker system. There are two highlighted aspects performed to achieve the objective of this thesis that are image enhancement and lane detection. The image enhancement of the poor DNA gel image is performed using two different approaches that are spatial and frequency filtering. The two approaches are compared and the quality of the enhanced images was accessed and evaluated using objective image quality metric that is peak signal-to-noise ratio (PSNR). For lane detection, we describe the convention of threshold value in the analysis of poor DNA gel image to eliminate false peak contained in the intensity profile obtained from the enhanced image data projection. A false peak elimination method was proposed in which a set of threshold interval was applied in the peak detection process to eliminate the false peak and retain the true peaks representing the lane’s border. The output of this method is used to track the lane’s border, further the individual lane is identified. Evaluation of the results from the proposed method in detecting the correct lanes was done by carrying out the analysis based on visual observation. Later, the performance of the method was evaluated empirically where the performance being assessed according to the discrepancy measures on the outcome of the lane detection process using confusion matrix. Based on the two approaches of image enhancement process, the average PSNR for the spatial domain filtering is 42.4727 dB whereas frequency domain filtering is 39.1417 dB. Therefore, spatial doman filtering become an exceptional approach for the enhancement of the poor DNA gel images. Further, the performance of the false peak elimination method proposed in lane detection and tracking process results with recall rate and accuracy of detecting the true peaks are 97.63% and 87.88% on poor DNA gel images while 99.57% and 95.96% on good DNA gel images. This finding shows that the proposed false peak elimination method, utilizing a set of optimal threshold interval, proves to be a promising lane detection method for both poor and good quality DNA gel images. Additionally, when the tasks of lane detection and tracking are implement automatically, the false peaks can be adequately eliminated and significantly ease the subsequent process of DNA gel image analysis.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Taher, Ros Surya
author_facet	Taher, Ros Surya
author_sort	Taher, Ros Surya
title	Automated lane detection of gel electrophoresis image using false peak elimination / Ros Surya Taher
title_short	Automated lane detection of gel electrophoresis image using false peak elimination / Ros Surya Taher
title_full	Automated lane detection of gel electrophoresis image using false peak elimination / Ros Surya Taher
title_fullStr	Automated lane detection of gel electrophoresis image using false peak elimination / Ros Surya Taher
title_full_unstemmed	Automated lane detection of gel electrophoresis image using false peak elimination / Ros Surya Taher
title_sort	automated lane detection of gel electrophoresis image using false peak elimination / ros surya taher
granting_institution	Universiti Teknologi MARA (UiTM)
granting_department	Faculty of Computer and Mathematical Sciences
publishDate	2017
url	https://ir.uitm.edu.my/id/eprint/82718/1/82718.pdf
_version_	1794191941457412096

Automated lane detection of gel electrophoresis image using false peak elimination / Ros Surya Taher

Similar Items