Prof. Jason F. Ralph Profile

Prof. Jason F. Ralph

Reader (Associate Professor) at Univ of Liverpool

SPIE Involvement:

Author

Publications (31)

Proceedings Article | 4 October 2020 Presentation + Paper

Augmented inertial navigation using cold atom sensing

Alexander Phillips, Michael Wright, Marton Kiss-Toth, Iain Read, Isabelle Riou, Stephen Maddox, Simon Maskell, Jason Ralph

Proceedings Volume 11578, 115780C (2020) https://doi.org/10.1117/12.2583999

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Proceedings Article | 6 October 2017 Paper

The simplicity, complexity, and benefits of multi-aperture imaging in the thermal infrared

Andrew Harvey, Guillem Carles, Laura Cowan, Miguel Preciado, Jason Ralph, James Babington, Andy Wood

Proceedings Volume 10438, 1043806 (2017) https://doi.org/10.1117/12.2278492

KEYWORDS: Cameras, Imaging systems, Sensors, Super resolution, Long wavelength infrared, Infrared imaging, Calibration, Infrared radiation, Multispectral imaging, Spatial resolution

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Proceedings Article | 5 May 2011 Paper

Tracking system to maximize the engagement envelope of a data linked weapon

James Davies, Jason Ralph, Neil Oxtoby

Proceedings Volume 8050, 805007 (2011) https://doi.org/10.1117/12.883021

KEYWORDS: Weapons, Missiles, Detection and tracking algorithms, Control systems, Target detection, Performance modeling, Filtering (signal processing), Error analysis, Process modeling, Reliability

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Proceedings Article | 5 May 2011 Paper

Interacting multiple model estimators for tracking thousands of interacting, small targets in a complex plasma

Neil Oxtoby, Jason Ralph, Céline Durniak, Dmitry Samsonov

Proceedings Volume 8050, 80501N (2011) https://doi.org/10.1117/12.883028

KEYWORDS: Particles, Plasma, Filtering (signal processing), Detection and tracking algorithms, Electronic filtering, Crystals, Data modeling, Performance modeling, Process modeling, Matrices

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Proceedings Article | 16 April 2010 Paper

Tracking interacting dust: comparison of tracking and state estimation techniques for dusty plasmas

Neil Oxtoby, Jason Ralph, Dmitry Samsonov, Céline Durniak

Proceedings Volume 7698, 76980C (2010) https://doi.org/10.1117/12.852421

KEYWORDS: Particles, Plasmas, Error analysis, Detection and tracking algorithms, Filtering (signal processing), Crystals, Cameras, Computer simulations, Electronic filtering, Algorithm development

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Proceedings Article | 11 May 2009 Paper

High-resolution reconstruction of objects from cloud-covered infrared images

Jing Wang, Jason Ralph, John Goulermas

Proceedings Volume 7336, 733617 (2009) https://doi.org/10.1117/12.818511

KEYWORDS: Clouds, Image segmentation, Optical flow, Super resolution, Image resolution, Image registration, Reconstruction algorithms, Image enhancement, Infrared imaging, Infrared radiation

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Proceedings Article | 11 May 2009 Paper

Tracking dust: tracking and state estimation for dusty plasmas

Jason Ralph, Dmitry Samsonov, Celine Durniak, Gregor Morfill

Proceedings Volume 7336, 73361H (2009) https://doi.org/10.1117/12.818508

KEYWORDS: Particles, Plasmas, Crystals, Optical spheres, Image filtering, Kinematics, Detection and tracking algorithms, Image processing, Mathematical modeling, Data modeling

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Proceedings Article | 29 April 2009 Paper

Automatic task assignment for mixed aircraft formations

Jason Ralph, Daniel Jones

Proceedings Volume 7307, 73070N (2009) https://doi.org/10.1117/12.818519

KEYWORDS: Weapons, Target designation, Detection and tracking algorithms, Laser development, Algorithms, Optimization (mathematics), Data communications, Algorithm development, Stochastic processes, Unmanned aerial vehicles

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Proceedings Article | 16 April 2008 Paper

Detection of small objects in multi-layered infrared images

Jing Wang, Shangqi Bao, Jason Ralph, John Goulermas

Proceedings Volume 6969, 696905 (2008) https://doi.org/10.1117/12.777494

KEYWORDS: Clouds, Image registration, Super resolution, Infrared imaging, Infrared radiation, Image resolution, Image processing, Cameras, Infrared cameras, Fourier transforms

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Proceedings Article | 16 April 2008 Paper

Pixel decomposition for tracking in low resolution videos

Vivekanand Govinda, Jason Ralph, Joseph Spencer, John Goulermas, Lihua Yang, Alaa Abbas

Proceedings Volume 6969, 69690A (2008) https://doi.org/10.1117/12.777502

KEYWORDS: RGB color model, Image resolution, Image processing, Sensors, Video, Environmental sensing, Light sources and illumination, Imaging systems, Cameras, Detection and tracking algorithms

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Proceedings Article | 24 March 2008 Paper

Control of two qubit systems with Hamiltonian feedback

Charles Hill, David Goodwin, Jason Ralph

Proceedings Volume 6976, 69760C (2008) https://doi.org/10.1117/12.777499

KEYWORDS: Quantum communications, Control systems, Stochastic processes, Matrices, Environmental sensing, Feedback control, Environmental monitoring, Measurement devices, Quantum information, Quantum information processing

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Proceedings Article | 13 June 2007 Paper

Deterministic purity evolution via weak measurement for bipartite quantum systems

Charles Hill, Jason Ralph

Proceedings Volume 6603, 66030S (2007) https://doi.org/10.1117/12.724659

KEYWORDS: Quantum communications, Stochastic processes, Matrices, Feedback control, Systems modeling, Projection systems, Electrical engineering, Electronics, Instrument modeling, Measurement devices

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Proceedings Article | 19 May 2006 Paper

Tracking subpixel targets in domestic environments

V. Govinda, J. Ralph, J. Spencer, J. Goulermas, D. Smith

Proceedings Volume 6236, 623603 (2006) https://doi.org/10.1117/12.665398

KEYWORDS: Image resolution, Algorithm development, Environmental sensing, Cameras, Sensors, Detection and tracking algorithms, Environmental monitoring, Motion measurement, Skin, Intelligence systems

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Proceedings Article | 19 May 2006 Paper

Identification of missile guidance laws for missile warning systems applications

Jason Ralph, Moira Smith, Jamie Heather

Proceedings Volume 6236, 62360B (2006) https://doi.org/10.1117/12.665626

KEYWORDS: Missiles, Infrared imaging, Detection and tracking algorithms, Infrared radiation, Electronic filtering, Imaging systems, Cameras, Algorithm development, Image processing, Medium wave

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Proceedings Article | 12 May 2006 Paper

Rapid purification of a solid state charge qubit

Jason Ralph, Elias Griffith, Charles Hill, Terence Clark

Proceedings Volume 6244, 624403 (2006) https://doi.org/10.1117/12.665403

KEYWORDS: Quantum communications, Control systems, Superconductors, Feedback control, Solid state physics, Environmental sensing, Quantum computing, Solid state electronics, Solids, Magnetism

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Proceedings Article | 2 May 2006 Paper

Spherical alignment of imagers using optical flow fields

Ben Lambert, Jason Ralph, Lee Wren, Jason Dale

Proceedings Volume 6238, 62380C (2006) https://doi.org/10.1117/12.665657

KEYWORDS: Cameras, Imaging systems, Image registration, Optical flow, Image processing, Infrared imaging, Infrared radiation, Spherical lenses, Optical alignment, Sensors

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Proceedings Article | 25 May 2005 Paper

Contextual targeting

Jason Ralph, Kenneth Edwards, Scott Sims

Proceedings Volume 5809, (2005) https://doi.org/10.1117/12.603309

KEYWORDS: Weapons, Detection and tracking algorithms, Reconnaissance, Missiles, Navigation systems, Databases, Image processing, Imaging systems, Computer simulations, Target detection

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Proceedings Article | 25 May 2005 Paper

Harmonization and alignment of multiple camera imagery

Ben Lambert, Jason Ralph, Lee Wren, David Dwyer, Jason Dale

Proceedings Volume 5809, (2005) https://doi.org/10.1117/12.603431

KEYWORDS: Cameras, Image registration, Imaging systems, Image processing, Infrared imaging, Infrared cameras, Infrared radiation, Sensors, Optical filters, Infrared detectors

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Proceedings Article | 25 May 2005 Paper

Motion-based detection, identification, and tracking for missile warning system applications

Jason Ralph, Moira Smith, Jamie Heather

Proceedings Volume 5809, (2005) https://doi.org/10.1117/12.603320

KEYWORDS: Missiles, Image processing, Detection and tracking algorithms, Algorithm development, Medium wave, Image registration, Cameras, Infrared imaging, Infrared radiation, Image fusion

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Proceedings Article | 25 May 2005 Paper

A proportional guidance law for quantum information processing

Jason Ralph, Elias Griffith, Terence Clark, Mark Everitt

Proceedings Volume 5815, (2005) https://doi.org/10.1117/12.603314

KEYWORDS: Quantum communications, Control systems, Optical spheres, Superconductors, Feedback control, Quantum information processing, Magnetism, Quantum computing, Environmental sensing, Microwave radiation

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Proceedings Article | 25 August 2004 Paper

Target tracking for missile warning applications

Moira Smith, Jamie Heather, Jason Ralph, Mark Bernhardt, Elias Griffith, Derek Bradley, Harwinder Padda

Proceedings Volume 5428, (2004) https://doi.org/10.1117/12.541482

KEYWORDS: Missiles, Detection and tracking algorithms, Image processing, Medium wave, Algorithm development, Infrared imaging, Image registration, Image filtering, Infrared radiation, Imaging systems

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Proceedings Article | 24 August 2004 Paper

Characterizing a superconducting charge qubit via environmental noise

Jason Ralph, Elias Griffith, Terence Clark, Mark Everitt, Peter Stiffell

Proceedings Volume 5436, (2004) https://doi.org/10.1117/12.541492

KEYWORDS: Quantum communications, Superconductors, Oscillators, Microwave radiation, Photons, Electromagnetism, Solid state electronics, Quantum information, Electronics, Quantum computing

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Proceedings Article | 9 August 2004 Paper

Scene-referenced object localization

Jason Ralph, Scott Sims, Kenneth Edwards

Proceedings Volume 5429, (2004) https://doi.org/10.1117/12.541494

KEYWORDS: Databases, Detection and tracking algorithms, Cameras, Filtering (signal processing), Infrared imaging, Infrared radiation, Electronic filtering, Imaging systems, Spherical lenses, 3D image processing

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Proceedings Article | 27 July 2004 Paper

Scene-dependent harmonization of aircraft vision systems

Ben Lambert, Jason Ralph, Scott Sims, Lee Wren, David Dwyer

Proceedings Volume 5430, (2004) https://doi.org/10.1117/12.541496

KEYWORDS: Cameras, Image registration, Imaging systems, Image processing, Sensors, Detection and tracking algorithms, Algorithm development, Infrared cameras, Missiles, Image resolution

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Proceedings Article | 25 August 2003 Paper

Multiple hypotheses tracking with heavy-tailed noise

Scott Sims, Jason Ralph, Moira Smith, Christopher Angell, Peter Randall

Proceedings Volume 5096, (2003) https://doi.org/10.1117/12.487007

KEYWORDS: Filtering (signal processing), Error analysis, Detection and tracking algorithms, Navigation systems, Mahalanobis distance, Target detection, Imaging systems, Electronic filtering, Data fusion, Forward looking infrared

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Proceedings Article | 1 August 2002 Paper

Control of a superconducting qubit in the presence of a nonlinear backreaction

Jason Ralph, Terrence Clark, Mark Everitt, Peter Steiffell, Robert Prance, Helen Prance

Proceedings Volume 4732, (2002) https://doi.org/10.1117/12.477421

KEYWORDS: Quantum communications, Superconductors, Magnetism, Computing systems, Quantum computing, Inductance, Electromagnetism, Single photon, Logic devices, Chemical species

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Proceedings Article | 1 July 2002 Paper

Effect of carefree handling requirements on an air-launched seeker-guided weapon

Jason Ralph, Kenneth Edwards

Proceedings Volume 4714, (2002) https://doi.org/10.1117/12.472589

KEYWORDS: Weapons, Navigation systems, Detection and tracking algorithms, Control systems, Computer simulations, Thermal modeling, Systems modeling, Target recognition, Monte Carlo methods, Imaging infrared seeker

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Proceedings Article | 6 March 2002 Paper

Distributed air-to-ground targeting

Jason Ralph, Moira Smith, Mark Bernhardt, Catherine West, Christopher Angell, Scott Sims

Proceedings Volume 4731, (2002) https://doi.org/10.1117/12.458387

KEYWORDS: Data fusion, Filtering (signal processing), Error analysis, Sensors, Target recognition, Matrices, Target detection, Detection and tracking algorithms, Global Positioning System, Monte Carlo methods

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Proceedings Article | 16 August 2001 Paper

Multisensor fusion for improved air-to-ground target localization

Moira Smith, Eleanor Januarius, Mark Bernhardt, David Nicholson, Gareth Rees, Jason Ralph

Proceedings Volume 4380, (2001) https://doi.org/10.1117/12.436971

KEYWORDS: Sensors, Data fusion, Filtering (signal processing), Detection and tracking algorithms, Target detection, Synthetic aperture radar, Algorithm development, Data modeling, Radar, Electronic filtering

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Proceedings Article | 26 July 2001 Paper

Behavior of a persistent current qubit in a time-dependent electromagnetic field

Jason Ralph, Terrence Clark, Mark Everitt, Peter Steiffell, Apostolos Vourdas, Robert Prance, Helen Prance

Proceedings Volume 4386, (2001) https://doi.org/10.1117/12.434218

KEYWORDS: Quantum communications, Superconductors, Magnetism, Electromagnetism, Inductance, Control systems, Quantum computing, Computing systems, Superposition, Quantum optics

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Proceedings Article | 22 March 2001 Paper

Peformance limits for multiplatform scene-referenced navigation systems

Jason Ralph, Eleanor Januarius, Moira Smith, Kenneth Edwards, Mark Bernhardt

Proceedings Volume 4385, (2001) https://doi.org/10.1117/12.421117

KEYWORDS: Navigation systems, Error analysis, Imaging systems, Databases, Sensors, Global Positioning System, Data fusion, Forward looking infrared, Solids, Image fusion

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Showing 5 of 31 publications

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