PREVIOUS WORK EXPERIENCE

1. Senior Lecturer, School of Computer Science, University of KwaZulu-Natal  (2008 - 2014)
2. Lecturer (HoD), Department of Computer Science, Walter Sisulu University (2004 - 2007)
3. Lecturer (HoD), Department of Computer Science, Bindura University of Science Education (2003 - 2004)

RESEARCH INTERESTS

• Computer Vision and Image Processing
• Pattern Recognition
• Biometrics and Multi-Modal Biometrics
• Software Re-Engineeering
• Information Security

POSTGRADUATE SUPERVISION

Prof. Viriri is looking for postgraduate students (MSc & PhD), and postdoc candidates, who are interested to join his "Computer Vision and Image Processing (CVIP)" research group.

Journal publications

Mapayi, T; EVIRIRS1; Tapamo, J-R (2015)
Comparative Study of Retinal Vessel Segmentation Based on Global Thresholding Techniques
Computational and Mathematical Methods in Medicine
View/download link: ISSN 1748-6718 (ISI Journal)

Mapayi, T.; EVIRIRS1; Tapamo, J-R. (2015)
Adaptive Thresholding Technique for Retinal Vessel Segmentation based on GLCM-Energy Information
Computational and Mathematical Methods in Medicine
View/download link: ISSN 1748-6718 (ISI Journal)

Mapayi, T.; EVIRIRS1; Tapamo, J-R. (2015)
Retinal Vessel Segmentation: A Comparative Study of Fuzzy C-Means and Sum-Entropy on Phase Congruence
International Journal of Advanced Robotic Systems
View/download link: ISSN 1729-8814 (ISI Journal - In press)

Lagerwall, B ; EVIRIRS1 (2014)
Increasing Face Recognition Rates Using Novel Classification Algorithms
International Journal of Computers Communications and Control
View/download link: ISSN: 1841-9836 (ISI Journal)

M. Gwetu; EVIRIRS1; J-R. Tapamo (2014)
Segmentation of retinal blood vessels using normalized Gabor filters and automatic thresholding
South African Computer Journal
View/download link: ISSN 2313-7835 (DHET)

Conference proceedings

Reade, S.; EVIRIRS1 (2015)
Hybrid Age Estimation Using Facial Images
Image Analysis and Recognition
Niagara Falls, Canada
978-3-319-20800-8
pp 239-246

Mapayi, T.; EVIRIRS1; Tapamo, J-R. (2015)
Retinal Vessel Segmentation Based on Phase Congruence and GLCM Sum-Entropy
IEEE International Conference on Industrial Technology
Seville, Spain

Booysens, A; EVIRIRS1 (2014)
Detection of Lightning Pattern Changes Using Machine Learning Algorithms
Recent Advances in Communications, Signal Processing and Computers
Interlaken, Switzerland
ISBN: 978-1-61804-215-6
pp 78-84

Goosen, W; EVIRIRS1 (2014)
Monitoring Land-Cover Changes Using Satellite Imagery
Recent Advances in Communications, Signal Processing and Computers
Interlaken, Switzerland
ISBN: 978-1-61804-215-6
pp 131-137

Pedzisai, J.; EVIRIRS1 (2014)
Comparison of Segmentation Methods for Accurate Dental Caries Detection
Mathematics and Computers in Science and Industry
Varna, Bulgaria
ISBN:978-1-61804-247-7
pp 393-399

Gangaram, S.; EVIRIRS1 (2014)
Human Identification based on Ear Recognition
Recent Advances in Electrical Engineering and Educational Technologies
Greece
978-1-61804-254-5
pp 230-234


Book/chapters

EVIRIRS1 Characterization of Medical Images using Edge Density and Local Directional Pattern (LDP)
2015
Lecture Notes in Computer Science (LNCS), Springer
pp 394-401
ISBN: 978-3-319-20800-8

S. Reade; EVIRIRS1 Hybrid Age Estimation Using Facial Images
2015
Lecture Notes in Computer Science (LNCS), Springer
pp 239-246
ISBN: 978-3-319-20800-8

S. Reade; EVIRIRS1 Hybrid Age Estimation Using Facial Images
2015
Lecture Notes in Computer Science (LNCS), Springer
pp 239-246
ISBN: 978-3-319-20800-8

Reade, S.; EVIRIRS1 Hybrid Age Estimation Using Facial Images
2015
Lecture Notes in Computer Science (LNCS), Springer

EVIRIRS1 Handwritten Signature Verification based on Enhanced Direction and Grid Features
2014
Lecture Notes in Computer Science (LNCS), Springer
pp 820-829
ISBN: 978-3-319-14363-7