Dr. John R. Rzasa Profile

Dr. John R. Rzasa

at Univ of Maryland College Park

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Author

Publications (6)

SPIE Journal Paper | 3 February 2025 Open Access

Improved performance and design of a low-cost laparoscope to enable laparoscopic surgery in low-income countries

Anne Christine Barnes, Michele L. Kaluzienski, Jason Chen, Tri T. Quang, Talya Simcox, Paula Kworekwa, Rebecca Kaaya, Robert Ssekitoleko, Kevin Aroom, John Rzasa, Tamara Fitzgerald, Jenna L. Mueller

BIOS, Vol. 2, Issue 02, 022302, (February 2025) https://doi.org/10.1117/12.10.1117/1.BIOS.2.2.022302

KEYWORDS: Laparoscopy, Design, Cameras, Surgery, Light emitting diodes, Biomedical optics, In vivo imaging, Depth of field, Manufacturing, Distortion

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Proceedings Article | 15 February 2021 Presentation + Paper

Otoscopy video screening with deep anomaly detection

Weiyao Wang, Aniruddha Tamhane, John Rzasa, James Clark, Therese Canares, Mathias Unberath

Proceedings Volume 11597, 115971H (2021) https://doi.org/10.1117/12.2581902

KEYWORDS: Ear, Video, Diagnostics, Visualization, Receivers, Pattern recognition, Machine learning, Inspection

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Proceedings Article | 7 October 2019 Paper

Characterization and compensation of atmospheric effects on laser beams

Miranda van Iersel, Daniel Paulson, Nathaniel Ferlic, Jonathan Ko, Chensheng Wu, John Rzasa, Christopher Davis

Proceedings Volume 11161, 1116107 (2019) https://doi.org/10.1117/12.2534755

KEYWORDS: Atmospheric optics, Atmospheric propagation, Laser countermeasures, Optical turbulence, Laser beam propagation, Spatial coherence, Atmospheric sensing, Adaptive optics, Sensors, Turbulence

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Proceedings Article | 6 September 2019 Presentation + Paper

Fundamental differences between the plenoptic sensor and the light field camera in imaging through turbulence

Chensheng Wu, John Rzasa, Christopher Davis

Proceedings Volume 11133, 111330R (2019) https://doi.org/10.1117/12.2530388

KEYWORDS: Turbulence, Cameras, Sensors, Distortion, Optical sensors, Image sensors, Optical filters, Image filtering, Diffraction, Geometrical optics

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Proceedings Article | 6 September 2019 Presentation + Paper

Observing single and multiple laser glints through anisotropic turbulence with a plenoptic sensor

Chensheng Wu, Daniel Paulson, Miranda van Iersel, John Rzasa, Nathaniel Ferlic, Christopher Davis

Proceedings Volume 11133, 111330Y (2019) https://doi.org/10.1117/12.2530364

KEYWORDS: Sensors, Turbulence, Image sensors, Anisotropy, Picosecond phenomena, Associative arrays, Wavefronts, Objectives, Imaging systems, Cameras

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Proceedings Article | 18 September 2018 Presentation + Paper

A multi-aperture laser transmissometer for detailed characterization of laser propagation over long paths through the turbulent atmosphere

Daniel Paulson, Chensheng Wu, John Rzasa, Jonathan Ko, Miranda Van Iersel, Joseph Coffaro, Christopher Smith, Robert Crabbs, Christopher Davis

Proceedings Volume 10770, 107700J (2018) https://doi.org/10.1117/12.2322586

KEYWORDS: Turbulence, Receivers, Sensors, Visibility, Transmitters, Atmospheric propagation, Signal detection, Refractive index, Laser beam propagation, Mass attenuation coefficient

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Showing 5 of 6 publications

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