Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Jan E. Van der Laan"'
Publikováno v:
ICIP
We systematically compared the optical performance of two computational photography (CP) approaches used to extend the depth of field of an imaging system: wavefront coding and lattice focal lens imaging. A test bed was developed by translating test
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::32393168b8f1ec88e0e511a6a0068fb7
https://doi.org/10.1109/icip.2014.7025005
https://doi.org/10.1109/icip.2014.7025005
Publikováno v:
Imaging and Applied Optics Technical Papers.
We developed a light field telescope to simultaneously increase magnification and depth-of-field for biometric applications at large (>20 m) standoff distance. We discuss infrared performance and limitations due to microlens diffraction.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::662a902c3933dc2defd203432a82889c
https://doi.org/10.1364/aio.2012.jtu5a.27
https://doi.org/10.1364/aio.2012.jtu5a.27
Publikováno v:
Imaging and Applied Optics Technical Papers.
We model LiDAR backscattering from outdoor mixed vapor-aerosol (MVA) detonation tests and show that we are able to correctly separate MVA components into silica and TEP (tri-ethyl phosphate) using a novel aerosol partitioning algorithm.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f4366f7598de527e24be388a3960488
https://doi.org/10.1364/orse.2012.rtu1e.3
https://doi.org/10.1364/orse.2012.rtu1e.3
Publikováno v:
SPIE Proceedings.
The work on the development of compact diode laser-based lidar systems at SRI International is reviewed. Two systems, a pseudorandom modulation lidar, and a mobile remote sensor for natural gas pipeline leak detection are described in detail, and exp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::36bfcd2d3459293c8f94c325cd4ef05f
https://doi.org/10.1117/12.366447
https://doi.org/10.1117/12.366447
Autor:
David E. Cooper, Haris Riris, Clinton B. Carlisle, Luke V. Schneider, Jan E. Van der Laan, Karen M. Nashold
Publikováno v:
SPIE Proceedings.
We describe an integrated detection system based on upconverting phosphor particles bound to capture sites on the inside surfaces of rectangular wick capillaries. This deice can be used with either antibody or nucleic acid to detect specific micro-or
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::17dda05004d5464f44132987d8174c52
https://doi.org/10.1117/12.274359
https://doi.org/10.1117/12.274359
Publikováno v:
Applied Optics. 52:1864
Raw iris images collected outdoors at standoff distances exceeding 25 m are susceptible to noise and atmospheric blur and even under ideal imaging conditions are too degraded to carry out recognition with high accuracy. Traditionally, atmospherically
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c4e6f3afc3acf9f924571bfd8ec02bc5
https://doi.org/10.1364/ao.52.001864
https://doi.org/10.1364/ao.52.001864
Publikováno v:
Tunable Diode Laser Spectroscopy, Lidar, and DIAL Techniques for Environmental and Industrial Measurements.
SRI International has designed and built several instruments that use tunable diode lasers and frequency modulation spectroscopy. These instruments have been used for flux measurements of trace gases, explosives detection, and environmental monitorin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::110bbc5c32cab5901432aca9d285f15b
https://doi.org/10.1117/12.177293
https://doi.org/10.1117/12.177293
Publikováno v:
SPIE Proceedings.
Frequency modulations spectroscopy (FMS) with infrared lasers is an attractive technique for a number of environmental chemical sensing problems. The technique combines high detection sensitivity with high detection speed and, when implemented with t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd686534d7c486ed503b67ed6f21a763
https://doi.org/10.1117/12.46158
https://doi.org/10.1117/12.46158
Autor:
Peter L. Holland, Jan E. Van der Laan, David McPherrin, Joseph Leonelli, Russell E. Warren, Jack Comeford, Leland Fletcher
Publikováno v:
SPIE Proceedings.
A multiwavelength CO2 direct-detection DIAL system has been designed and developed to produce range-resolved vapor concentration contour plots of a 1 x 1 km grid at 20-m spatial resolution in 10 s intervals.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b2cb9ff4efa8413ea373f01a51b1c4b
https://doi.org/10.1117/12.18385
https://doi.org/10.1117/12.18385
Publikováno v:
Applied Optics. 34:6187
A dual CO(2) laser-based differential absorption lidar (DIAL) system has been constructed and demonstrated for range-resolved mapping of chemical vapor plumes. The system acquires high range resolution through the use of plasma-shutter pulse clippers
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4721b7ffd45d0ad5ea1aad99d1ee3aa0
https://doi.org/10.1364/ao.34.006187
https://doi.org/10.1364/ao.34.006187