Dr. Ioannis I. Kypraios Profile

Dr. Ioannis I. Kypraios

Research Scientist

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Publications (10)

Proceedings Article | 13 May 2010 Paper

Implementation of the Maximum Average Correlation Height (MACH) filter in the spatial domain for object recognition from clutter backgrounds

Akber Gardezi, Philip Birch, Ioannis Kypraios, Rupert Young, Christopher Chatwin

Proceedings Volume 7696, 76961S (2010) https://doi.org/10.1117/12.850216

KEYWORDS: Image filtering, Spatial filters, Object recognition, Optical correlators, Tolerancing, Holography, Distortion, Field programmable gate arrays, Target detection, Convolution

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Proceedings Article | 1 September 2009 Paper

Modified-hybrid optical neural network filter for multiple object recognition within cluttered scenes

Ioannis Kypraios, Rupert C. D. Young, Chris Chatwin

Proceedings Volume 7442, 74420P (2009) https://doi.org/10.1117/12.826556

KEYWORDS: Image filtering, Video, Optical filters, Nonlinear filtering, Neurons, Neural networks, Object recognition, Optical correlators, Linear filtering, Artificial neural networks

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Proceedings Article | 13 April 2009 Paper

Logarithmic r-theta mapping for hybrid optical neural network filter for multiple objects recognition within cluttered scenes

Ioannis Kypraios, Rupert Young, Chris Chatwin, Phil Birch

Proceedings Volume 7340, 73400N (2009) https://doi.org/10.1117/12.818789

KEYWORDS: Video, Sensors, Image filtering, Neurons, Image sensors, Neural networks, Optical filters, Object recognition, Associative arrays, Hybrid optics

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Proceedings Article | 3 October 2008 Paper

Performance analysis of a modified moving shadow elimination method developed for indoor scene activity tracking

Bhargav Kumar Mitra, Muhammad Kamran Fiaz, Ioannis Kypraios, Philip Birch, Rupert Young, Chris Chatwin

Proceedings Volume 7119, 71190A (2008) https://doi.org/10.1117/12.800376

KEYWORDS: RGB color model, Video, Image segmentation, Surveillance systems, Distortion, Video processing, Sensors, Binary data, Statistical analysis, Data modeling

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Proceedings Article | 25 April 2008 Paper

On a method to eliminate moving shadows in video sequences

Bhargav Kumar Mitra, Philip Birch, Ioannis Kypraios, Rupert Young, Chris Chatwin

Proceedings Volume 7000, 700012 (2008) https://doi.org/10.1117/12.779744

KEYWORDS: RGB color model, Video, Distortion, Bismuth, Video surveillance, Statistical analysis, Data modeling, Data analysis, Light sources, Niobium

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Proceedings Article | 17 March 2008 Paper

Image watermarking extraction using Fourier domain Wiener filter

Philip Birch, Marios Pavlidis, Ankit Panwar, Ozoemena Nnamadim, Ioannis Kypraios, Bhargav Mitra, Rupert Young, Chris Chatwin

Proceedings Volume 6977, 69770L (2008) https://doi.org/10.1117/12.777040

KEYWORDS: Digital watermarking, Filtering (signal processing), Image filtering, Digital image processing, Digital imaging, Feature extraction, Image processing, Fourier transforms, Electronic filtering, Optimal filtering

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Proceedings Article | 21 February 2005 Paper

Fully invariant object recognition in cluttered scenes

Peter Bone, Ioannis Kypraios, Rupert Young, Christopher Chatwin

Proceedings Volume 5822, (2005) https://doi.org/10.1117/12.612034

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SPIE Journal Paper | 1 August 2004

Object recognition within cluttered scenes employing a hybrid optical neural network filter

Ioannis Kypraios, Rupert Young, Philip Birch, Christopher Chatwin

OE, Vol. 43, Issue 08, (August 2004) https://doi.org/10.1117/12.10.1117/1.1767194

KEYWORDS: Image filtering, Optical filters, Nonlinear filtering, Neurons, Neural networks, Hybrid optics, Object recognition, Chlorine, Distortion, Linear filtering

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Proceedings Article | 12 April 2004 Paper

Performance assessment of Unconstrained Hybrid Optical Neural Network (U-HONN) filter for object recognition tasks in clutter

Ioannis Kypraios, Rupert Young, Chris Chatwin

Proceedings Volume 5437, (2004) https://doi.org/10.1117/12.542058

KEYWORDS: Image filtering, Optical filters, Neural networks, Hybrid optics, Nonlinear filtering, Distortion, Chlorine, Artificial neural networks, Optical correlators, Composites

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Proceedings Article | 6 August 2003 Paper

A nonlinear training set superposition filter derived by neural network training methods for implementation in a shift-invariant optical correlator

Ioannis Kypraios, Rupert Young, Philip Birch, Christopher Chatwin

Proceedings Volume 5106, (2003) https://doi.org/10.1117/12.486334

KEYWORDS: Image filtering, Nonlinear filtering, Neural networks, Neurons, Optical filters, Superposition, Linear filtering, Optical correlators, Composites, Nonlinear optics

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Showing 5 of 10 publications

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