Results 51 to 60 of about 20,366 (247)

Low-latency compression of mocap data using learned spatial decorrelation transform

, 2016
Due to the growing needs of human motion capture (mocap) in movie, video games, sports, etc., it is highly desired to compress mocap data for efficient storage and transmission.
Chau, Lap-Pui, He, Ying, Hou, Junhui, Magnenat-Thalmann, Nadia   +3 more
core   +1 more source

Quantum correlated light pulses from sequential superradiance of a condensate [PDF]

, 2009
We discover an inherent mechanism for entanglement swap associated with sequential superradiance from an atomic Bose-Einstein condensate. Based on careful examinations with both analytical and numerical approaches, we conclude that as a result of the ...
Mustecaplioglu, O. E., Oktel, M. O., Tasgin, M. E., You, L.   +3 more
core   +2 more sources

Four-Stage Inversion Algorithm for Forest Height Estimation Using Repeat Pass Polarimetric SAR Interferometry Data

Remote Sensing, 2018
This paper proposes a new method for forest height estimation using single-baseline single frequency polarimetric synthetic aperture radar interferometry (PolInSAR) data.
Tayebe Managhebi, Yasser Maghsoudi, Mohammad Javad Valadan Zoej   +2 more
doaj   +1 more source

Speckle Statistics in Adaptively Corrected Images

, 2005
(abridged) Imaging observations are generally affected by a fluctuating background of speckles, a particular problem when detecting faint stellar companions at small angular separations.
Aime C., Boccaletti A., Canales V. F., Dainty J. C., Dainty J. C., Fried D. L., James R. Graham, Labeyrie A., Labeyrie A., Michael P. Fitzgerald, Roddier F., Scaddan R. J., Veran J.-P., Vernin J.   +13 more
core   +1 more source

Experimental study of Taylor's hypothesis in a turbulent soap film [PDF]

, 1999
An experimental study of Taylor's hypothesis in a quasi-two-dimensional turbulent soap film is presented. A two probe laser Doppler velocimeter enables a non-intrusive simultaneous measurement of the velocity at spatially separated points.
Andrew Belmonte, Aurell E., Belmonte A., Bofetta G., Brian Martin, Bruneau C. H., Buchhave P., Cenedese A., Dahm W. J. A., Favre A. J., Favre A. J., Hayot F., Kolmogorov A. N., Kolmogorov A. N., Lin C. C., Mi J., Paret J., Paret J., Pinton J.-F., Piomelli U., Walter I. Goldburg, Williams B. S.   +21 more
core   +4 more sources

Non‐Invasively Tracking an Arbitrary Deformable Object Through Scattering Media and Around Corners via Speckle Correlations

Advanced Science, EarlyView.
A speckle correlation centroid localization method (SCCLM) is proposed for non‐invasive tracking of an arbitrary deformable object through scattering media and around corners, requiring no prior information. Its effectiveness is demonstrated not only in tracking hidden objects beyond the memory effect region but also in following objects undergoing ...
Aiping Zhai, Wenjing Ji, Yan Wang, Xiyuan Luo, Wenjing Zhao, Dong Wang, Fei Liu   +6 more
wiley   +1 more source

Statistical studies on optical vortices in dynamic speckle fields

Journal of Biomedical Photonics & Engineering, 2018
New parameters to statistically describe and differentiate between different decorrelation behaviors in dynamic speckle fields are described. These decorrelation behaviors are surrogate descriptors of the dynamics of the underlying processes in object ...
Anindya Majumdar, Sean J. Kirkpatrick
doaj   +1 more source

Metasurfaces and Metadevices for Topological Electromagnetic Waves

Advanced Physics Research, EarlyView.
Optical topologies refer to diverse topological localized structures made by diverse parameters of light fields, such as vortices, skyrmions, and hopfions. This article navigates a direction of metasurface‐based integrated devices for generation, manipulation and detection of novel topologies of light, which would be a rapidly growing interdisciplinary
Rensheng Xie, Nilo Mata‐Cervera, Xi Xie, Yijie Shen   +3 more
wiley   +1 more source

On the Mitigation of Phase Bias in SAR Interferometry Applications: A New Model Based on NDWI

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
This article presents a study of the relationship among decorrelation phase in synthetic aperture radar (SAR) interferogram, soil moisture, and water content in vegetation with the aim of mitigating the contribution of decorrelation phase in SAR ...
Nuno Cirne Mira, Joao Catalao, Giovanni Nico   +2 more
doaj   +1 more source

Forest Height Inversion Based on Time–Frequency RVoG Model Using Single-Baseline L-Band Sublook-InSAR Data

Remote Sensing, 2022
The interferometric synthetic aperture radar (InSAR) technique based on time–frequency (TF) analysis has great potential for mapping the forest canopy height model (CHM) at regional and global scales, as it benefits from the additional InSAR observations
Lei Wang, Yushan Zhou, Gaoyun Shen, Junnan Xiong, Hongtao Shi   +4 more
doaj   +1 more source