Dr. Phil M. Birch Profile

Dr. Phil M. Birch

Reader at Univ of Sussex

SPIE Involvement:

Author

Publications (47)

Proceedings Article | 27 April 2020 Presentation

Occluded illegally parked vehicle detection and long term tracking (Conference Presentation)

Xing Gao, Philip Birch, Rupert Young, Chris Chatwin

Proceedings Volume 11400, 114000C (2020) https://doi.org/10.1117/12.2558549

KEYWORDS: Algorithm development, Detection and tracking algorithms, Light sources and illumination, Electronic filtering

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Proceedings Article | 1 April 2020 Presentation + Paper

Implementations and optimisations of optical Conv2D networks designs

Philip Birch, Navid Rahimi, Peter Overburry, Rupert Young, Chris Chatwin

Proceedings Volume 11356, 113561C (2020) https://doi.org/10.1117/12.2554021

KEYWORDS: Neurons, Convolution, Network architectures, Optical networks, Spatial light modulators, Optical design, Multiplexing, Modulation, Phase only filters, Sensors

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Proceedings Article | 21 May 2019 Presentation + Paper

Wireless charging pad detection and alignment using a fisheye camera for electric vehicles

Nauman Javed, David Guerrero, Rupert Young, Phil Birch, Chris Chatwin

Proceedings Volume 10995, 109950F (2019) https://doi.org/10.1117/12.2519481

KEYWORDS: Detection and tracking algorithms, Automatic tracking, Visualization, Control systems, Target detection

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Proceedings Article | 13 May 2019 Presentation + Paper

Enhanced target recognition employing spatial correlation filters and affine scale invariant feature transform

Akber Gardezi, Usman Malik, Saad Rehman, R. C. Young, P. Birch, C. Chatwin

Proceedings Volume 10995, 109950N (2019) https://doi.org/10.1117/12.2520555

KEYWORDS: Image filtering, Detection and tracking algorithms, Target detection, Object recognition, Composites, Tolerancing, Target recognition, Spatial filters, Light sources and illumination, Digital filtering

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SPIE Journal Paper | 14 September 2018 Open Access

Real-time unmanned aerial vehicle tracking of fast moving small target on ground

Junhua Yan, Jun Du, Yong Young, Christopher R. Chatwin, Rupert C. D. Young, Philip Birch

JEI, Vol. 27, Issue 05, 053010, (September 2018) https://doi.org/10.1117/12.10.1117/1.JEI.27.5.053010

KEYWORDS: Image filtering, Unmanned aerial vehicles, Electronic filtering, Optical filters, Target detection, Motion models, Optimal filtering, Image fusion, Detection and tracking algorithms, Digital filtering

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Proceedings Article | 24 May 2018 Paper

Low-cost polarimetric imaging for surveillance

Philip Birch, Rupert Young, Chris Chatwin

Proceedings Volume 10677, 1067736 (2018) https://doi.org/10.1117/12.2307489

KEYWORDS: Cameras, Polarization, Polarimetry, Video, Image processing, Image segmentation, Surveillance, Polarizers, Calibration

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Proceedings Article | 9 May 2018 Presentation + Paper

ASIFT based recognition of fixed shape moving objects and tracking via modified particle filters

Haris Masood, Saad Rehman, Aimal Khan, Wasi Haider, Rupert Young, Phil Birch, Mohammad Alam

Proceedings Volume 10649, 106490C (2018) https://doi.org/10.1117/12.2304699

KEYWORDS: Particle filters, Object recognition, Detection and tracking algorithms, Image processing, Machine vision, Computer vision technology, Cameras, Zoom lenses, Environmental sensing

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Proceedings Article | 27 April 2018 Presentation + Paper

A simplification of the Shor quantum factorization algorithm employing a quantum Hadamard transform

Rupert C. Young, Philip Birch, Chris Chatwin

Proceedings Volume 10649, 1064903 (2018) https://doi.org/10.1117/12.2309468

KEYWORDS: Quantum computing, Superposition, Fourier transforms, Computing systems, Quantum communications, Binary data, Signal processing, Algorithms, Matrices, Quantization

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Proceedings Article | 27 April 2016 Paper

A wide field fluorescence lifetime imaging system using a light sheet microscope

Phil Birch, Lamar Moore, Xiaofei Li, Roger Phillips, Rupert Young, Chris Chatwin

Proceedings Volume 9887, 98871O (2016) https://doi.org/10.1117/12.2230908

KEYWORDS: Microscopes, Fluorescence lifetime imaging, Microchannel plates, Imaging systems, Time metrology, Microscopy, Photon counting, Image resolution, Photomultipliers, Sensors, Photons, Electron multiplying charge coupled devices, Distortion

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Proceedings Article | 20 April 2016 Paper

Considerations for the extension of coherent optical processors into the quantum computing regime

Rupert C. Young, Philip Birch, Chris Chatwin

Proceedings Volume 9845, 98450K (2016) https://doi.org/10.1117/12.2220396

KEYWORDS: Quantum computing, Superposition, Optical signal processing, Fourier transforms, Wavefronts, Image processing, Computer architecture, Optical image encryption, Multiphoton processes, Quantum optics, Spatial light modulators, Quantum communications, Image encryption, Binary data, Phase shift keying

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Proceedings Article | 20 April 2015 Paper

Comparison of spatial domain optimal trade-off maximum average correlation height (OT-MACH) filter with scale invariant feature transform (SIFT) using images with poor contrast and large illumination gradient

A. Gardezi, T. Qureshi, A. Alkandri, R. C. Young, P. Birch, C. Chatwin

Proceedings Volume 9477, 947706 (2015) https://doi.org/10.1117/12.2177451

KEYWORDS: Image filtering, Target detection, Light sources and illumination, Detection and tracking algorithms, Light sources, Digital filtering, Optical filters, Spatial filters, Tolerancing, Target recognition

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Proceedings Article | 4 March 2015 Paper

Hierarchical video surveillance architecture: a chassis for video big data analytics and exploration

Sola Ajiboye, Philip Birch, Christopher Chatwin, Rupert Young

Proceedings Volume 9407, 94070K (2015) https://doi.org/10.1117/12.2083937

KEYWORDS: Video surveillance, Video, Cameras, Imaging systems, Computing systems, Surveillance, Safety, Analytics, Surveillance systems, Telecommunications

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Proceedings Article | 5 March 2014 Paper

PHACT: Parallel HOG and Correlation Tracking

Waqas Hassan, Philip Birch, Rupert Young, Chris Chatwin

Proceedings Volume 9026, 902602 (2014) https://doi.org/10.1117/12.2039181

KEYWORDS: Image filtering, Sensors, Detection and tracking algorithms, Optical correlators, Video, Electronic filtering, Fourier transforms, Cameras, Light sources and illumination, Optical filters

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Proceedings Article | 29 April 2013 Paper

Defining properties of speech spectrogram images to allow effective pre-processing prior to pattern recognition

Mohammed Al-Darkazali, Rupert Young, Chris Chatwin, Philip Birch

Proceedings Volume 8748, 87480G (2013) https://doi.org/10.1117/12.2014511

KEYWORDS: Fourier transforms, Image segmentation, Neodymium, Image processing, Analytical research, Pattern recognition, Image resolution, Interference (communication), Signal processing, Image filtering

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Proceedings Article | 29 April 2013 Paper

Coherent optical implementations of the fast Fourier transform and their comparison to the optical implementation of the quantum Fourier transform

Rupert Young, Philip Birch, Chris Chatwin

Proceedings Volume 8748, 874806 (2013) https://doi.org/10.1117/12.2014042

KEYWORDS: Fourier transforms, Superposition, Waveguides, Wavefronts, Spatial light modulators, Quantum communications, Detection and tracking algorithms, Phase shifts, Quantum computing, Optical components

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Proceedings Article | 19 March 2013 Paper

An improved background segmentation method for ghost removals

Waqas Hassan, Philip Birch, Rupert Young, Chris Chatwin

Proceedings Volume 8663, 86630W (2013) https://doi.org/10.1117/12.2008653

KEYWORDS: Image segmentation, Light sources and illumination, Video surveillance, Video, Manganese, Computer security, Cameras, Surveillance systems, Convolution, Information science

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Proceedings Article | 23 April 2012 Paper

Improving OT-MACH filter performance for target recognition applications with the use of a Rayleigh distribution filter

Ahmad Alkandri, Nagachetan Bangalore, Akber Gardezi, Philip Birch, Rupert Young, Chris Chatwin

Proceedings Volume 8398, 83980D (2012) https://doi.org/10.1117/12.918756

KEYWORDS: Image filtering, Linear filtering, Forward looking infrared, Gaussian filters, 3D modeling, Target recognition, Optical filters, Computer aided design, Target detection, Wavelets

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Proceedings Article | 13 October 2011 Paper

Application of speed-enhanced spatial domain correlation filters for real-time security monitoring

Akber Gardezi, Nagachetan Bangalore, Ahmed Al-Kandri, Philip Birch, Rupert Young, Chris Chatwin

Proceedings Volume 8189, 81890R (2011) https://doi.org/10.1117/12.898915

KEYWORDS: Field programmable gate arrays, Image filtering, Forward looking infrared, Linear filtering, Target detection, Target recognition, Spatial filters, 3D modeling, Optical correlators, Image enhancement

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Proceedings Article | 28 September 2011 Paper

Automatic parameter adjustment of difference of Gaussian (DoG) filter to improve OT-MACH filter performance for target recognition applications

Ahmad Alkandri, Akber Gardezi, Nagachetan Bangalore, Philip Birch, Rupert Young, Chris Chatwin

Proceedings Volume 8185, 81850M (2011) https://doi.org/10.1117/12.897309

KEYWORDS: Optical filters, Gaussian filters, 3D modeling, Target detection, Image filtering, Computer aided design, Forward looking infrared, Target recognition, Bandpass filters, 3D acquisition

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Proceedings Article | 3 June 2011 Paper

Door surveillance using edge map-based Harris corner detector and active contour orientation

Nagachetan Bangalore, Waqas Hassan, Bhargav Mitra, Philip Birch, Rupert Young, Chris Chatwin

Proceedings Volume 8056, 805608 (2011) https://doi.org/10.1117/12.883843

KEYWORDS: Surveillance, Cameras, Sensors, Corner detection, Hough transforms, Video, Video surveillance, Detection and tracking algorithms, Surveillance systems, Image filtering

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Accurately generating an alarm for a moving door is a precondition for tracking, recognizing and segmenting objects or people entering or exiting the door. The challenge of generating an alarm when a door event occurs is difficult when dealing with complex doors, moving cameras, objects moving or an obscured entrance of the door, together with the presence of varying illumination conditions such as a door-way light being switched on. In this paper, we propose an effective method of tracking the door motion using edge-map information contained within a localised region at the top of the door. The region is located where the top edge of the door displaces every time the door is opened or closed. The proposed algorithm uses the edge-map information to detect the moving corner in the small windowed area with the help of a Harris corner detector. The moving corner detected in the selected region gives an exact coordinate of the door corner in motion, thus helping in generating an alarm to signify that the door is being opened or closed. Additionally, due to the prior selection of the small region, the proposed method nullifies the adverse effects mentioned above and helps prevent different objects that move in front of the door affecting its efficient tracking. The proposed overall method also generates an alarm to signify whether the door was displaced to provide entry or exit. To do this, an active contour orientation is computed to estimate the direction of motion of objects in the door area when an event occurs. This information is used to distinguish between objects and entities entering or exiting the door. A Hough transform is applied on a specific region in the frame to detect a line, which is used to perform error correction to the selected windows. The detected line coordinates are used to nullify the effects of a moving camera platform, thus improving the robustness of the results. The developed algorithm has been tested on all the Door Zone video sequences contained with the United Kingdom Home Office i-LIDs dataset, with promising results.

Proceedings Article | 26 April 2011 Paper

Tracking illegally parked vehicles using correlation of multi-scale difference of Gaussian filtered patches

Bhargav Mitra, Waqas Hassan, Nagachetan Bangalore, Philip Birch, Rupert Young, Chris Chatwin

Proceedings Volume 8055, 805503 (2011) https://doi.org/10.1117/12.883821

KEYWORDS: Image filtering, Distortion, Bandpass filters, Electronic filtering, Video, RGB color model, Gaussian filters, Image segmentation, Video surveillance, Algorithm development

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Proceedings Article | 26 April 2011 Paper

Enhancement of the speed of space-variant correlation filter implementations by using low-pass pre-filtering for kernel placement and applications to real-time security monitoring

Akber Gardezi, Ahmad Al-Kandri, Philip Birch, Rupert Young, Chris Chatwin

Proceedings Volume 8055, 805509 (2011) https://doi.org/10.1117/12.883784

KEYWORDS: Image filtering, Linear filtering, Target detection, Target recognition, Optical filters, Forward looking infrared, Nonlinear filtering, Thermography, Detection and tracking algorithms, 3D modeling

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Proceedings Article | 26 April 2011 Paper

Parameter optimization of the optimal trade-off maximum average correlation height filter for FLIR imaging in high clutter environments

Ahmad Alkandri, Akber Gardezi, Philip Birch, Rupert Young, Chris Chatwin

Proceedings Volume 8055, 805508 (2011) https://doi.org/10.1117/12.882823

KEYWORDS: Image filtering, Forward looking infrared, Digital filtering, Target detection, Computer aided design, Sensors, 3D modeling, 3D image processing, Target acquisition, Statistical modeling

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Proceedings Article | 26 April 2011 Paper

Robust human intrusion detection technique using hue-saturation histograms

Waqas Hassan, Bhargav Mitra, Nagachetan Bangalore, Philip Birch, Rupert Young, Chris Chatwin

Proceedings Volume 8055, 80550J (2011) https://doi.org/10.1117/12.883973

KEYWORDS: Video, Distortion, RGB color model, Image segmentation, Light sources and illumination, Computer intrusion detection, Cameras, Chromium, Binary data, Detection and tracking algorithms

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SPIE Journal Paper | 1 November 2010

Efficient denoising of images using a nonaggressive median filtering scheme

Bhargav Mitra, Philip Birch, Rupert Young, Chris Chatwin

OE, Vol. 49, Issue 11, 117004, (November 2010) https://doi.org/10.1117/12.10.1117/1.3509367

KEYWORDS: Digital filtering, Image filtering, Optical filters, Denoising, Bridges, Optical engineering, Image processing, Image segmentation, Cameras, Fuzzy logic

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Proceedings Article | 12 October 2010 Paper

A space variant maximum average correlation height (MACH) filter for object recognition in real time thermal images for security applications

Akber Gardezi, Ahmed Alkandri, Philip Birch, Rupert Young, Chris Chatwin

Proceedings Volume 7838, 78380N (2010) https://doi.org/10.1117/12.865485

KEYWORDS: Image filtering, Forward looking infrared, Target detection, Optical filters, Image sensors, Target recognition, Thermography, Sensors, Optical correlators, Tolerancing

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Proceedings Article | 13 May 2010 Paper

Volume holographic MACH correlator

Philip Birch, Akber Gardezi, Rupert Young, Chris Chatwin

Proceedings Volume 7696, 76961L (2010) https://doi.org/10.1117/12.848705

KEYWORDS: Optical correlators, Spatial light modulators, Volume holography, Holography, Holograms, Charge-coupled devices, Optical filters, Image filtering, Video, Electronics

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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 | 13 May 2010 Paper

Illumination invariant method to detect and track left luggage in public areas

Waqas Hassan, Bhargav Mitra, Chris Chatwin, Rupert Young, Philip Birch

Proceedings Volume 7696, 76961V (2010) https://doi.org/10.1117/12.849224

KEYWORDS: Databases, Binary data, Cameras, Electronic filtering, Image segmentation, Distortion, RGB color model, Gaussian filters, Imaging systems, Video

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Proceedings Article | 15 April 2010 Paper

A two-stage approach to detect abandoned baggage in public places

Bhargav Mitra, Waqas Hassan, Philip Birch, Akber Gardezi, Rupert Young, Chris Chatwin

Proceedings Volume 7701, 770107 (2010) https://doi.org/10.1117/12.849215

KEYWORDS: RGB color model, Binary data, Sensors, Detection and tracking algorithms, Distortion, Algorithm development, Cameras, Roentgenium, Information security, Intelligence systems

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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 | 13 April 2009 Paper

An optical space domain volume holographic correlator

Philip Birch, Akber Gardezi, Bhargav Mitra, Rupert Young, Chris Chatwin

Proceedings Volume 7340, 734004 (2009) https://doi.org/10.1117/12.817828

KEYWORDS: Optical correlators, Spatial light modulators, Volume holography, Charge-coupled devices, Holography, Image filtering, Optical filters, Holograms, Sensors, Fourier transforms

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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

Segmentation of moving objects from cluttered background scenes using a running average model

Georgios Christogiannopoulos, Philip Birch, Rupert Young, Christopher Chatwin

Proceedings Volume 5822, (2005) https://doi.org/10.1117/12.612035

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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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SPIE Journal Paper | 1 August 2004

Automated vehicle occupancy monitoring

Philip Birch, Rupert Young, Frederic Claret-Tournier, Christopher Chatwin

OE, Vol. 43, Issue 08, (August 2004) https://doi.org/10.1117/12.10.1117/1.1766300

KEYWORDS: Image segmentation, Facial recognition systems, Neural networks, Cameras, RGB color model, Image processing, Neurons, Roads, Glasses, Signal detection

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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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SPIE Journal Paper | 1 July 2002

Optical design of a miniature Fourier transform lens system for a hybrid digital-optical correlator

Philip Birch, Gongde Li, Frederic Claret-Tournier, Rupert Young, David Budgett, Christopher Chatwin

OE, Vol. 41, Issue 07, (July 2002) https://doi.org/10.1117/12.10.1117/1.1484497

KEYWORDS: Fourier transforms, Spatial light modulators, Optical correlators, Optical design, Cameras, Digital signal processing, Optics manufacturing, Signal processing, Lens design, Beam expanders

Proceedings Article | 6 March 2002 Paper

Incoherent correlator system for satellite orientation control

Aristodemos Kouris, Rupert Young, Christopher Chatwin, Philip Birch

Proceedings Volume 4734, (2002) https://doi.org/10.1117/12.458420

KEYWORDS: Stars, Mirrors, Optical correlators, Satellites, Optical filters, Control systems, Sensors, Space operations, Electronic filtering, CCD cameras

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SPIE Journal Paper | 1 January 2002

Optical and electronic design of a hybrid digital optical correlator system

Philip Birch, Frederic Claret-Tournier, David Budgett, Rupert Young, Christopher Chatwin

OE, Vol. 41, Issue 01, (January 2002) https://doi.org/10.1117/12.10.1117/1.1428293

KEYWORDS: Spatial light modulators, Optical correlators, Cameras, Optical design, Optical filters, Digital signal processing, Fourier transforms, Tolerancing, Modulation, Signal processing

SPIE Journal Paper | 1 January 2002

Computer-generated complex filter for an all-optical and a digital optical hybrid correlator

Philip Birch, Rupert Young, Frederic Claret-Tournier, David Budgett, Christopher Chatwin

OE, Vol. 41, Issue 01, (January 2002) https://doi.org/10.1117/12.10.1117/1.1425785

Proceedings Article | 20 March 2001 Paper

Fully complex filter implementation in all-optical and hybrid digital/optical correlators

Philip Birch, Rupert Young, Frederic Claret-Tournier, Triantafillos Koukoulas, Sovira Tan, David Budgett, Christopher Chatwin

Proceedings Volume 4387, (2001) https://doi.org/10.1117/12.421148

KEYWORDS: Spatial light modulators, Optical correlators, Optical filters, Filtering (signal processing), Fourier transforms, Image filtering, Digital filtering, Digital signal processing, Phase only filters, Modulation

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Proceedings Article | 24 May 2000 Paper

Optical correlator with fully complex liquid crystal filter

Philip Birch, Rupert Young, David Budgett, Triantafillos Koukoulas, Gongde Li, Frederic Claret-Tournier, Christopher Chatwin

Proceedings Volume 4089, (2000) https://doi.org/10.1117/12.386854

KEYWORDS: Spatial light modulators, Modulation, Optical filters, Optical correlators, Liquid crystals, Nonlinear filtering, Phase shift keying, Complex systems, Binary data, Fourier transforms

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Proceedings Article | 31 March 2000 Paper

Hardware implementation details of a hybrid digital/optical correlator system

Rupert Young, Frederic Claret-Tournier, Gongde Li, Philip Birch, David Budgett, Triantafillos Koukoulas, Christopher Chatwin

Proceedings Volume 4043, (2000) https://doi.org/10.1117/12.381611

KEYWORDS: Spatial light modulators, Fourier transforms, Digital signal processing, Optical correlators, Lithium, Signal processing, Charge-coupled devices, Field programmable gate arrays, Tolerancing, Digital Light Processing

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Proceedings Article | 17 October 1997 Paper

Real-time adaptive optics correction with a ferroelectric liquid crystal spatial light modulator and Shack-Hartmann wavefront sensor

Philip Birch, James Gourlay, Nathan Doble, Alan Purvis

Proceedings Volume 3126, (1997) https://doi.org/10.1117/12.290146

KEYWORDS: Wavefront sensors, Spatial light modulators, Adaptive optics, Wavefronts, Cameras, Photonic integrated circuits, Ferroelectric LCDs, Liquid crystals, Polarizers, CCD cameras

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Showing 5 of 47 publications

Conference Committee Involvement (3)

Video Surveillance and Transportation Imaging Applications 2015

10 February 2015 | San Francisco, California, United States

Video Surveillance and Transportation Imaging Applications 2014

3 February 2014 | San Francisco, California, United States

Video Surveillance and Transportation Imaging Applications

4 February 2013 | Burlingame, California, United States

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