Dr. Charles W. Gardner Profile

Dr. Charles W. Gardner

Director of Project Management at ChemImage Corp

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Publications (7)

Proceedings Article | 7 March 2019 Presentation

Intraoperative molecular chemical imaging endoscopy for the in vivo detection of anatomical structures (Conference Presentation)

Shona Stewart, Aaron Smith, Heather Gomer, Jihang Wang, Charles Gardner, James Post, Jeffrey Cohen, Patrick Treado

Proceedings Volume 10868, 108680O (2019) https://doi.org/10.1117/12.2510216

KEYWORDS: In vivo imaging, Imaging spectroscopy, Endoscopy, Surgery, Blood vessels, Injuries, Medicine, Endoscopes, Imaging devices, Infrared imaging

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Proceedings Article | 3 May 2017 Presentation + Paper

Real-time, wide-area hyperspectral imaging sensors for standoff detection of explosives and chemical warfare agents

Nathaniel Gomer, Shawna Tazik, Charles Gardner, Matthew Nelson

Proceedings Volume 10183, 1018303 (2017) https://doi.org/10.1117/12.2262716

KEYWORDS: Sensors, Raman spectroscopy, Short wave infrared radiation, Hyperspectral imaging, Explosives, Optical filters, Imaging systems, Image filtering, Spectroscopy

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Proceedings Article | 12 May 2016 Paper

Handheld and mobile hyperspectral imaging sensors for wide-area standoff detection of explosives and chemical warfare agents

Nathaniel Gomer, Charles Gardner, Matthew Nelson

Proceedings Volume 9855, 98550M (2016) https://doi.org/10.1117/12.2229969

KEYWORDS: Short wave infrared radiation, Image sensors, Sensors, Raman spectroscopy, Short wave infrared radiation, Hyperspectral imaging, Explosives, Imaging systems, Spectroscopy, Standoff detection

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Proceedings Article | 19 May 2015 Paper

Advanced shortwave infrared and Raman hyperspectral sensors for homeland security and law enforcement operations

Oksana Klueva, Matthew Nelson, Charles Gardner, Nathaniel Gomer

Proceedings Volume 9455, 94550O (2015) https://doi.org/10.1117/12.2177150

KEYWORDS: Sensors, Short wave infrared radiation, Explosives, Raman spectroscopy, Target detection, Infrared sensors, Infrared radiation, Hyperspectral imaging, Cameras, Zoom lenses

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Proceedings Article | 10 June 2014 Paper

Continued development of a portable widefield hyperspectral imaging (HSI) sensor for standoff detection of explosive, chemical, and narcotic residues

Matthew Nelson, Charles Gardner, Oksana Klueva, David Tomas

Proceedings Volume 9073, 90730O (2014) https://doi.org/10.1117/12.2050708

KEYWORDS: Sensors, Explosives, Short wave infrared radiation, Standoff detection, Target detection, Detection and tracking algorithms, Hyperspectral imaging, Liquid crystals, Optical design, Forensic science

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Passive, standoff detection of chemical, explosive and narcotic threats employing widefield, shortwave infrared (SWIR) hyperspectral imaging (HSI) continues to gain acceptance in defense and security fields. A robust and user-friendly portable platform with such capabilities increases the effectiveness of locating and identifying threats while reducing risks to personnel. In 2013 ChemImage Sensor Systems (CISS) introduced Aperio, a handheld sensor, using real-time SWIR HSI for wide area surveillance and standoff detection of explosives, chemical threats, and narcotics. That SWIR HSI system employed a liquid-crystal tunable filter for real-time automated detection and display of threats. In these proceedings, we report on a next generation device called VeroVision™, which incorporates an improved optical design that enhances detection performance at greater standoff distances with increased sensitivity and detection speed. A tripod mounted sensor head unit (SHU) with an optional motorized pan-tilt unit (PTU) is available for precision pointing and sensor stabilization. This option supports longer standoff range applications which are often seen at checkpoint vehicle inspection where speed and precision is necessary. Basic software has been extended to include advanced algorithms providing multi-target display functionality, automatic threshold determination, and an automated detection recipe capability for expanding the library as new threats emerge. In these proceedings, we report on the improvements associated with the next generation portable widefield SWIR HSI sensor, VeroVision™. Test data collected during development are presented in this report which supports the targeted applications for use of VeroVision™ for screening residue and bulk levels of explosive and drugs on vehicles and personnel at checkpoints as well as various applications for other secure areas. Additionally, we highlight a forensic application of the technology for assisting forensic investigators in locating bone remains in a cluttered background environment.

Proceedings Article | 29 May 2014 Paper

STARR: shortwave-targeted agile Raman robot for the detection and identification of emplaced explosives

Nathaniel Gomer, Charles Gardner

Proceedings Volume 9073, 90730N (2014) https://doi.org/10.1117/12.2050647

KEYWORDS: Raman spectroscopy, Short wave infrared radiation, Sensors, Particles, Explosives, Hyperspectral imaging, Improvised explosive devices, Imaging systems, Infrared imaging, Infrared radiation

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Proceedings Article | 25 April 2008 Paper

Remote chemical biological and explosive agent detection using a robot-based Raman detector

Charles Gardner, Rachel Wentworth, Patrick Treado, Parag Batavia, Gary Gilbert

Proceedings Volume 6962, 69620T (2008) https://doi.org/10.1117/12.781692

KEYWORDS: Sensors, Raman spectroscopy, Explosives, Explosives detection, Biological detection systems, Computing systems, Cameras, Head, Detection and tracking algorithms, Chemical analysis

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Showing 5 of 7 publications

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