Dr. Leszek Swierkowski Profile

Dr. Leszek Swierkowski

Researcher at Defence Science and Technology Group

SPIE Involvement:

Author

Publications (25)

Proceedings Article | 2 May 2019 Presentation + Paper

Object detection and recognition using laser radar incorporating novel SPAD technology

William Woods, Dennis Delic, Barnaby Smith, Leszek Świerkowski, Geoffrey Day, Vladimyros Devrelis, Robert Joyce

Proceedings Volume 11005, 1100504 (2019) https://doi.org/10.1117/12.2517869

KEYWORDS: LIDAR, Sensors, Unmanned aerial vehicles, Single photon, Imaging systems, Cameras, Avalanche photodiodes, Infrared imaging, Infrared radiation, Thermography

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Proceedings Article | 29 May 2014 Paper

Real-time scene and signature generation for ladar and imaging sensors

Leszek Swierkowski, Chad Christie, Leonid Antanovskii, Efthimios Gouthas

Proceedings Volume 9071, 90711E (2014) https://doi.org/10.1117/12.2050223

KEYWORDS: LIDAR, 3D modeling, Sensors, Computer simulations, Image processing, Solar radiation models, Reflection, Diffusion, Bidirectional reflectance transmission function, Thermal modeling

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Proceedings Article | 25 July 2013 Paper

Dynamic thermal signature prediction for real-time scene generation

Chad Christie, Efthimios (Themie) Gouthas, Owen Williams, Leszek Swierkowski

Proceedings Volume 8707, 87070C (2013) https://doi.org/10.1117/12.2015656

KEYWORDS: Computer simulations, Thermal modeling, 3D modeling, Data modeling, Sun, Infrared signatures, Clouds, Reflection, Convection, Radiative transfer

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Proceedings Article | 11 May 2012 Paper

Infrared projector optical system characterisation and its application to nonuniformity correction

Leszek Swierkowski, Robert Joyce, Chad Christie

Proceedings Volume 8356, 83560M (2012) https://doi.org/10.1117/12.919008

KEYWORDS: Cameras, Nonuniformity corrections, Point spread functions, Projection systems, Floods, Calibration, Infrared radiation, Infrared imaging, Image registration, Imaging systems

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Proceedings Article | 13 May 2011 Paper

Real-time maritime scene simulation for ladar sensors

Chad Christie, Efthimios Gouthas, Leszek Swierkowski, Owen Williams

Proceedings Volume 8015, 80150G (2011) https://doi.org/10.1117/12.883770

KEYWORDS: LIDAR, Computer simulations, Sensors, Scene simulation, Infrared radiation, Signal detection, Infrared imaging, Visualization, Cameras, Foam

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Proceedings Article | 24 April 2010 Paper

Real-time scene generation infrared radiometry

Owen Williams, Chad Christie, Guangfu Shen, Efthimios Gouthas, Leszek Swierkowski

Proceedings Volume 7663, 76630N (2010) https://doi.org/10.1117/12.849958

KEYWORDS: Infrared radiation, Infrared imaging, Computer simulations, Reflectivity, Mid-IR, Clouds, Reflection, Projection systems, Long wavelength infrared, Radiometry

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Proceedings Article | 24 April 2010 Paper

Real-time maritime scene simulation

Efthimios Gouthas, Chad Christie, Leszek Swierkowski, Owen Williams

Proceedings Volume 7663, 76630M (2010) https://doi.org/10.1117/12.849957

KEYWORDS: Computer simulations, Motion models, Particles, Scene simulation, Foam, Wave propagation, Reflectivity, Systems modeling, Reflection, Solid modeling

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Proceedings Article | 23 April 2009 Paper

Comparison of GPU and FPGA hardware for HWIL scene generation and image processing

Craig Eales, Leszek Swierkowski

Proceedings Volume 7301, 730109 (2009) https://doi.org/10.1117/12.818099

KEYWORDS: Field programmable gate arrays, Digital signal processing, Convolution, Image processing, Clocks, Computer programming, Algorithm development, Computer simulations, Finite impulse response filters, Logic

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Proceedings Article | 23 April 2009 Paper

Resistor array infrared projector nonuniformity correction: search for performance improvement IV

Leszek Swierkowski, Robert Joyce, Owen Williams

Proceedings Volume 7301, 73010M (2009) https://doi.org/10.1117/12.818433

KEYWORDS: Nonuniformity corrections, Projection systems, Floods, Cameras, Infrared radiation, Point spread functions, Resistors, Thermography, Signal to noise ratio, Infrared imaging

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Proceedings Article | 23 April 2009 Paper

Boat, wake, and wave real-time simulation

Leszek Świerkowski, Efthimios Gouthas, Chad Christie, Owen Williams

Proceedings Volume 7301, 73010A (2009) https://doi.org/10.1117/12.818430

KEYWORDS: Particles, Computer simulations, Foam, Visualization, Graphics processing units, Infrared radiation, Motion models, Radiometry, Reflection, Light sources and illumination

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Proceedings Article | 10 February 2009 Paper

Seeing through the haze

D. Bowman, A. Lambert, D. Fraser, L. Swierkowski

Proceedings Volume 7126, 712611 (2009) https://doi.org/10.1117/12.822925

KEYWORDS: Field programmable gate arrays, Image processing, Turbulence, Surveillance, Data processing, Algorithm development, Cameras, Astronomical telescopes, Telescopes, Astronomy

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Methods to correct for atmospheric degradation of imagery and improve the "seeing" of a telescope are well known in astronomy but, to date, have rarely been applied to more earthly matters such as surveillance. The intrinsically more complicated visual fields, the dominance of low-altitude distortion effects, the requirement to process large volumes of data in near real-time, the inability to pre-select ideal sites and the desirability of ruggedness and portability all combine to pose a significant challenge. Field Programmable Gate Array (FPGA) technology has advanced to the point where modern devices contain hundreds of thousands of logic gates, multiple "hard" processors and multi-gigabit serial communication links. Such devices present an ideal platform to tackle the demands of surveillance image processing. We report a rugged, lightweight system which allows multiple FPGA "modules" to be added together in order to quickly and easily reallocate computing resources. The devices communicate via 2.5Gbps serial links and process image data in a streaming fashion, reducing as much data as possible on-the-fly in order to present a minimised load to storage and/or communication devices. To maximise the benefit of such a system we have devised an open protocol for FPGA-based image processing called "OpenStream". This allows image processing cores to be quickly and easily added into or removed from the data stream and harnesses the benefits of code-reuse and standardisation. It further allows image processing tasks to be easily partitioned across multiple, heterogeneous FPGA domains and permits a designer the flexibility to allocate cores to the most appropriate FPGA. OpenStream is the infrastructure to facilitate rapid, graphical, development of FPGA based image processing algorithms especially when they must be partitioned across multiple FPGAs. Ultimately it will provide a means to automatically allocate and connect resources across FPGA domains in a manner analogous to the way logic synthesis tools allocate and connect resources within an FPGA.

Proceedings Article | 11 April 2008 Paper

Resistor array infrared projector nonuniformity correction: search for performance improvement III

Robert Joyce, Leszek Świerkowski, Owen Williams

Proceedings Volume 6942, 69420N (2008) https://doi.org/10.1117/12.777785

KEYWORDS: Nonuniformity corrections, Cameras, Floods, Projection systems, Point spread functions, Infrared radiation, Thermography, Resistors, Modulation, Infrared imaging

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Proceedings Article | 30 April 2007 Paper

Resistor array infrared projector nonuniformity correction: search for performance improvement II

Leszek Świerkowski, Robert Joyce, Owen Williams

Proceedings Volume 6544, 654403 (2007) https://doi.org/10.1117/12.718075

KEYWORDS: Nonuniformity corrections, Cameras, Projection systems, Floods, Thermography, Infrared radiation, Image enhancement, Transform theory, Resistors, Image registration

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Proceedings Article | 16 May 2006 Paper

Resistor array infrared projector temperature resolution: revisited

Owen Williams, Leszek Swierkowski, Breck Sieglinger, George Goldsmith

Proceedings Volume 6208, 62080V (2006) https://doi.org/10.1117/12.663181

KEYWORDS: Projection systems, Mid-IR, Resistors, Nonuniformity corrections, Long wavelength infrared, Quantization, Infrared radiation, Temperature metrology, Thermography, RGB color model

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Proceedings Article | 16 May 2006 Paper

Resistor array infrared projector nonuniformity correction: search for performance improvement

Robert Joyce, Leszek Swierkowski, Owen Williams

Proceedings Volume 6208, 62081A (2006) https://doi.org/10.1117/12.663172

KEYWORDS: Nonuniformity corrections, Floods, Thermography, Projection systems, Cameras, Infrared radiation, Resistors, Infrared imaging, Forward looking infrared, Quantization

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Proceedings Article | 20 May 2005 Paper

Emissive infrared projector sparse grid nonuniformity correction

Robert Joyce, Leszek Swierkowski, Owen Williams

Proceedings Volume 5785, (2005) https://doi.org/10.1117/12.603275

KEYWORDS: Nonuniformity corrections, Cameras, Projection systems, Image processing, Infrared radiation, Signal processing, Thermography, Black bodies, Infrared imaging, Imaging systems

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Proceedings Article | 4 August 2004 Paper

Emissive infrared projector real-time scene data pixel processing

Owen Williams, Leszek Swierkowski, August Huber, James Norman, George Goldsmith, W. Larry Herald

Proceedings Volume 5408, (2004) https://doi.org/10.1117/12.543055

KEYWORDS: Infrared radiation, Projection systems, Resistance, Nonuniformity corrections, Algorithm development, Control systems, Field effect transistors, Field programmable gate arrays, Cameras, Data processing

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Proceedings Article | 4 August 2004 Paper

Emissive infrared projector temperature resolution limiting factors

Leszek Swierkowski, Robert Joyce, Owen Williams

Proceedings Volume 5408, (2004) https://doi.org/10.1117/12.542937

KEYWORDS: Cameras, Nonuniformity corrections, Projection systems, Thermography, Infrared radiation, Staring arrays, Calibration, Temperature metrology, Sensors, Black bodies

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Proceedings Article | 12 September 2003 Paper

Infrared projector scene data real-time processor design

Owen Williams, Leszek Swierkowski, August Huber, James Norman, George Goldsmith

Proceedings Volume 5092, (2003) https://doi.org/10.1117/12.488585

KEYWORDS: Nonuniformity corrections, Signal processing, Cameras, Infrared radiation, Projection systems, Thermography, Black bodies, Field effect transistors, Signal attenuation, Spatial frequencies

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Proceedings Article | 12 September 2003 Paper

Infrared projector flood nonuniformity correction characteristics

Robert Joyce, Leszek Swierkowski, Owen Williams

Proceedings Volume 5092, (2003) https://doi.org/10.1117/12.486897

KEYWORDS: Nonuniformity corrections, Moire patterns, Floods, Imaging systems, Distortion, Cameras, Projection systems, Image registration, Image enhancement, Point spread functions

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Proceedings Article | 22 August 2003 Paper

Precise modulation transfer function measurements for focal plane array systems

Robert Joyce, Leszek Swierkowski

Proceedings Volume 5076, (2003) https://doi.org/10.1117/12.486905

KEYWORDS: Modulation transfer functions, Spatial frequencies, Fourier transforms, Imaging systems, Point spread functions, Staring arrays, Cameras, Sensors, Infrared cameras, Optical transfer functions

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Proceedings Article | 12 July 2002 Paper

Advanced flood nonuniformity correction for emitter array infrared projectors

Leszek Swierkowski, Owen Williams

Proceedings Volume 4717, (2002) https://doi.org/10.1117/12.474712

KEYWORDS: Nonuniformity corrections, Projection systems, Imaging systems, Point spread functions, Floods, Moire patterns, Associative arrays, Imaging arrays, Infrared radiation, Image processing

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Proceedings Article | 12 July 2002 Paper

Process-based real-time scene data processor design for emitter array infrared projectors

Owen Williams, Leszek Swierkowski, Rhoe Thompson, George Goldsmith, W. Larry Herald

Proceedings Volume 4717, (2002) https://doi.org/10.1117/12.474713

KEYWORDS: Signal processing, Projection systems, Nonuniformity corrections, Infrared radiation, Data processing, Computer simulations, Field effect transistors, Temperature metrology, Black bodies, Error analysis

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Proceedings Article | 31 August 2001 Paper

Search for optimal infrared projector nonuniformity correction procudures III

Leszek Swierkowski, Owen Williams

Proceedings Volume 4366, (2001) https://doi.org/10.1117/12.438095

KEYWORDS: Nonuniformity corrections, Projection systems, Imaging systems, Moire patterns, Point spread functions, Modulation, Image registration, Infrared radiation, Floods, Imaging arrays

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Proceedings Article | 12 July 2000 Paper

Search for optimal infrared projector nonuniformity correction procedures: II

Leszek Swierkowski, Owen Williams

Proceedings Volume 4027, (2000) https://doi.org/10.1117/12.391690

KEYWORDS: Nonuniformity corrections, Point spread functions, Projection systems, Imaging systems, Algorithm development, Imaging arrays, Image processing, Infrared radiation, Floods, Infrared search and track

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Showing 5 of 25 publications

Conference Committee Involvement (4)

Technologies for Synthetic Environments: Hardware-in-the-Loop XVIII

2 May 2013 | Baltimore, Maryland, United States

Technologies for Synthetic Environments: Hardware-in-the-Loop XVII

25 April 2012 | Baltimore, Maryland, United States

Technologies for Synthetic Environments: Hardware-in-the-Loop XVI

27 April 2011 | Orlando, Florida, United States

Technologies for Synthetic Environments: Hardware-in-the-Loop Testing XV

7 April 2010 | Orlando, Florida, United States

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