Results 1 to 10 of about 1,689,570 (168)

Real-Time High-Resolution Background Matting [PDF]

2021 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2021
We introduce a real-time, high-resolution background replacement technique which operates at 30fps in 4K resolution, and 60fps for HD on a modern GPU. Our technique is based on background matting, where an additional frame of the background is captured and used in recovering the alpha matte and the foreground layer.
Shanchuan Lin, Andrey Ryabtsev, Soumyadip Sengupta, Brian L. Curless, Steven M. Seitz, Ira Kemelmacher-Shlizerman   +5 more
openaire   +2 more sources

Charged-particle timing with 10 ps accuracy using TimeSPOT 3D trench-type silicon pixels

Frontiers in Physics, 2023
For the next generation of vertex detectors, the accurate measurement of the charged particle timing at the pixel level is considered to be the ultimate solution in experiments operating at very high instantaneous luminosities.
F. Borgato, F. Borgato, D. Brundu, A. Cardini, G. M. Cossu, G. F. Dalla Betta, G. F. Dalla Betta, M. Garau, M. Garau, L. La Delfa, A. Lai, A. Lampis, A. Lampis, A. Loi, M. M. Obertino, M. M. Obertino, G. Simi, G. Simi, S. Vecchi   +18 more
doaj   +1 more source

Meteor trail characteristics observed by high time resolution lidar [PDF]

Annales Geophysicae, 2014
We report and analyse the characteristics of 1382 meteor trails based on a sodium data set of ~ 680 h. The observations were made at Yanqing (115.97° E, 40.47° N), China by a ground-based Na fluorescence lidar.
Y. J. Liu, J. M. C. Plane, B. R. Clemesha, J. H. Wang, X. W. Cheng   +4 more
doaj   +1 more source

Design and Optimization of a High-Time-Resolution Magnetic Plasma Analyzer (MPA)

Applied Sciences, 2020
In-situ measurements of space plasma throughout the solar system require high time resolution to understand the plasma’s kinetic fine structure and evolution. In this context, research is conducted to design instruments with the capability to acquire the
Benjamin Criton, Georgios Nicolaou, Daniel Verscharen   +2 more
doaj   +1 more source

Convex optimization of coincidence time resolution for high resolution PET systems [PDF]

2008 IEEE Nuclear Science Symposium Conference Record, 2008
We are developing a dual panel breast-dedicated positron emission tomography (PET) system using LSO scintillators coupled to position sensitive avalanche photodiodes (PSAPD). The charge output is amplified and read using NOVA RENA-3 ASICs. This paper shows that the coincidence timing resolution of the RENA-3 ASIC can be improved using certain list-mode
Paul D. Reynolds, Peter D. Olcott, Guillem Pratx, Frances W. Y. Lau, Craig S. Levin   +4 more
openaire   +2 more sources

High resolution time of arrival estimation for a cooperative sensor system [PDF]

Advances in Radio Science, 2010
Distance resolution of cooperative sensors is limited by the signal bandwidth. For the transmission mainly lower frequency bands are used which are more narrowband than classical radar frequencies. To compensate this resolution problem the combination of
C. Morhart, E. M. Biebl
doaj   +1 more source

High resolution time delay estimation [PDF]

ICASSP '87. IEEE International Conference on Acoustics, Speech, and Signal Processing, 2005
A new method is presented for estimating the arrival times of deterministic signal pulses that are separated by less than the duration of the signal autocorrelation function. The method is based on the observation that if the signal has a flat band-limited spectrum, then the maximum-likelihood estimator for the signal time of arrivals can be ...
openaire   +1 more source

Science with the XEUS high time resolution spectrometer [PDF]

SPIE Proceedings, 2008
10 pages, 10 figures (color), Proceedings of the SPIE meeting, Marseille (2008)
Barret, D., Belloni, T., Bhattacharyya, S., Cackett, E., Gilfanov, M., G¨o˘g¨u¸s, E., Homan, J., M´endez, M., Miller, J.M., Miller, M.C., Mereghettik, S., Paltanil, S., Poutanen, J., Wilms, J., Zdziarski, A.A.   +14 more
openaire   +5 more sources

High‐time‐resolution imaging of transient discharge processes without fixed triggering

IET Science, Measurement & Technology, 2022
Higher time resolution imaging is vital for exploring the microscopic mechanisms of the discharge process. The transient processes of discharge phenomena occur in a short time, and the onset cannot be predicted in advance, thus not providing a trigger ...
Xianglin Meng, Hui Song, Gehao Sheng, Xiuchen Jiang   +3 more
doaj   +1 more source

High time resolution boundary layer description using combined remote sensing instruments [PDF]

Annales Geophysicae, 2008
Ground based remote sensing systems for future observation operations will allow continuous monitoring of the lower troposphere at temporal resolutions much better than every 30 min.
C. Gaffard, J. Nash, E. Walker, T. J. Hewison, J. Jones, E. G. Norton   +5 more
doaj   +1 more source