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Robust aerial object tracking in images with lens flare

by Andreas Nussberger, Helmut Grabner, Luc Van Gool - In: Proc. of International Conference on Robotics and Automation , 2015
"... Abstract — The goal of integrating drones into the civil airspace requires a technical system which robustly detects, tracks and finally avoids aerial objects. Electro-optical cameras have proven to be an adequate sensor to detect traffic, especially for smaller aircraft, gliders or paragliders. How ..."
Abstract - Cited by 2 (0 self) - Add to MetaCart
. However the very challenging environmental conditions and image artifacts such as lens flares often result in a high number of false detections. Depending on the solar radiation lens flares are very common in aerial images and hard to distinguish from aerial objects on a collision course due

S.: Physically-based real-time lens flare rendering

by Matthias Hullin, Elmar Eisemann, Hans-peter Seidel, Sungkil Lee - ACM Trans. Graph. (Proc. SIGGRAPH
"... comparable settings. Even with many unknowns in the lens design and scene composition, as well as manufacturing tolerances in the real lens, the renderings closely reproduce the “personality ” of the flare. Lens flare is caused by light passing through a photographic lens system in an unintended way ..."
Abstract - Cited by 4 (1 self) - Add to MetaCart
comparable settings. Even with many unknowns in the lens design and scene composition, as well as manufacturing tolerances in the real lens, the renderings closely reproduce the “personality ” of the flare. Lens flare is caused by light passing through a photographic lens system in an unintended

General spectral camera lens simulation

by B. Steinert, H. Dammertz, J. Hanika, H. P. A. Lensch - In Computer Graphics Forum , 2011
"... Figure 1: Three images created with our lens simulation model. From left to right: realistic depth of field and bokeh, fisheye distortion, lens flare artifacts and glare streaks. We present a camera lens simulation model capable of producing advanced photographic phenomena in a general spectral Mont ..."
Abstract - Cited by 2 (1 self) - Add to MetaCart
Figure 1: Three images created with our lens simulation model. From left to right: realistic depth of field and bokeh, fisheye distortion, lens flare artifacts and glare streaks. We present a camera lens simulation model capable of producing advanced photographic phenomena in a general spectral

Fermi-LAT DETECTION OF GRAVITATIONAL LENS DELAYED GAMMA-RAY FLARES FROM BLAZAR B0218+357

by C. C. Cheung, S. Larsson, J. D. Scargle, M. A. Amin, R. D. Bl, D. Bulmash, J. Chiang, S. Ciprini, R. H. D. Corbet, E. E. Falco, P. J. Marshall, D. L. Wood, M. Ajello, D. Bastieri, A. Chekhtman, M. Giroletti, J. E. Grove, B. Lott, R. Ojha, M. Orienti, J. S. Perkins, M. Razzano, A. W. Smith, D. J. Thompson, K. S. Wood
"... ar ..."
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Abstract not found

Dsmc Simulation Of Separated Flows About Flared Bodies At . . .

by James N. Moss, James N. Moss , 2000
"... . This paper describes the results of a numerical study of interacting hypersonic #ows at conditions produced in ground-based test facilities. The computations are made with the direct simulation Monte Carlo #DSMC# method of Bird. The focus is on Mach 10 #ows about #ared axisymmetric con#gurations, ..."
Abstract - Cited by 1 (0 self) - Add to MetaCart
#gurations, both hollow cylinder #ares and double cones. The #ow conditions are those for which experiments have or will beperformed in the ONERA R5Ch low-density wind tunnel and the Calspan-University of Bu#alo Research Center #CUBRC# Large Energy National Shock #LENS# tunnel. The range of #ow conditions, model

Shape and Topology Optimization of an Acoustic Horn–Lens Combination

by Eddie Wadbro, Rajitha Udawalpola, Martin Berggren B
"... The preprint agrees with published version,. Using gradient-based optimization combined with numerical solutions of the Helm-holtz equation, we design an acoustic device with high transmission efficiency and even directivity throughout a two-octave-wide frequency range. The device consists of a horn ..."
Abstract - Cited by 2 (1 self) - Add to MetaCart
horn, whose flare is subject to boundary shape optimization, together with an area in front of the horn, where solid material arbitrarily can be distributed using topology optimization techniques, effectively creating an acoustic lens.

doi:10.5402/2011/653246 Clinical Study Secondary IOL Implantation without Capsular Support: A Laser Flare Cell Meter Study

by Isrn Ophthalmology, Mauro Cellini, Ernesto Strobbe, Pier Giorgio Toschi, Emilio C. Campos , 2011
"... Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Phacoemulsification and the contemporary implantation of intraocular lens (IOL) within the capsular bag represent the standard of care in ..."
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Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Phacoemulsification and the contemporary implantation of intraocular lens (IOL) within the capsular bag represent the standard of care

c1469331 bacva3 A Spectrally Based Method for the Emulation of the Technicolor Process on Digital Images 1 A Spectrally Based Method for the Emulation of the Technicolor Process on Digital Images

by Thomas Edwards, Thomas Edwards, Ncca Bournemouth
"... Before single strip multi-layered colour motion picture film was 'developed ' at the end of the 1940's, the main method of producing colour movies was a system invented by the Technicolor corporation, and hence commonly known as Technicolor. Other systems existed but the methods were ..."
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the process on digitised film([2] & [3]). Digitally captured images lack the depth of film and new methods of mimicking photography are continually being thought up – grain, lens flare etc. This paper aims to develop a physically based method of emulating the Technicolor process on digital images through

Probabilistic Lane Estimation using Basis Curves

by Albert S. Huang, Seth Teller
"... Abstract — Lane estimation for autonomous driving can be formulated as a curve estimation problem, where local sensor data provides partial and noisy observations of spatial curves. The number of curves to estimate may be initially unknown and many of the observations may be outliers or false detect ..."
Abstract - Cited by 1 (0 self) - Add to MetaCart
detections (due e.g. to to tree shadows or lens flare). The challenges lie in detecting lanes when and where they exist, and updating lane estimates as new observations are made. This paper describes an efficient probabilistic lane estimation algorithm based on a novel curve representation. The key advance

Seth Teller

by Albert S. Huang, C. Smith , 2009
"... Autonomous ground vehicles, or self-driving cars, require a high level of situational awareness in order to operate safely and efficiently in real-world conditions. A system able to quickly and reliably estimate the location of the roadway and its lanes based upon local sensor data would be a valuab ..."
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curve estimation problem, where sensor data provides partial and noisy observations of curves. The number of curves to estimate may be initially unknown and many of the observations may be outliers and false detections (e.g., due to tree shadows or lens flare). The challenge is to detect lanes when
Results 1 - 10 of 32