Results 11 to 20 of about 5,649,847 (250)

Towards Anytime Optical Flow Estimation with Event Cameras [PDF]

open access: yesSensors
Event cameras respond to changes in log-brightness at the millisecond level, making them ideal for optical flow estimation. However, existing datasets from event cameras provide only low-frame-rate ground truth for optical flow, limiting the research ...
Yaozu Ye   +7 more
doaj   +2 more sources

Characterization of Flow Dynamics in Vessels with Complex Geometry using Doppler Optical Coherence Tomography [PDF]

open access: yes, 2008
The study of flow dynamics in complex geometry vessels is highly important in many biomedical applications where the knowledge of the mechanic interactions between the moving fluid and the housing media plays a key role for the determination of the ...
Bonesi, Marco
core   +7 more sources

Characteristics of optical flow from aerial thermal imaging, “thermal flow” [PDF]

open access: yes, 2022
This study explores the utility of optical flow calculated from thermal imaging cameras, “thermal flow,” mounted on an aircraft for localization in day and night conditions.
Moss, P.   +17 more
core   +1 more source

TV-L1 Optical Flow Estimation

open access: yesImage Processing On Line, 2013
This article describes an implementation of the optical flow estimation method introduced by Zach, Pock and Bischof in 2007. This method is based on the minimization of a functional containing a data term using the L1 norm and a regularization term using
Javier Sánchez Pérez   +2 more
doaj   +1 more source

Robust Optical Flow Estimation

open access: yesImage Processing On Line, 2013
n this work, we describe an implementation of the variational method proposed by Brox etal. in 2004, which yields accurate optical flows with low running times.
Javier Sánchez Pérez   +2 more
doaj   +1 more source

3D Wavelet-Based Optical Flow Estimation [PDF]

open access: yesEngineering and Technology Journal, 2007
In this paper, a new algorithm for accurate optical flow estimation using discretewavelet approximation is proposed. The image sequences are always assumed tobe noiseless in the computation of optical flow, since there is always a method thatcan perform ...
Mutaz. AbdulWahab
doaj   +1 more source

AM3F-FlowNet: Attention-Based Multi-Scale Multi-Branch Flow Network

open access: yesEntropy, 2023
Micro-expressions are the small, brief facial expression changes that humans momentarily show during emotional experiences, and their data annotation is complicated, which leads to the scarcity of micro-expression data.
Chenghao Fu   +3 more
doaj   +1 more source

Broadband Backhaul Communication for Stratospheric Platforms: The Stratospheric Optical Payload Experiment (STROPEX) [PDF]

open access: yes, 2006
A high bitrate optical downlink was performed by the stratospheric optical payload experiment (STROPEX), a part of the EU CAPANINA project. The STROPEX objectives were to design and build the necessary hardware to demonstrate an optical backhaul downlink
Knapek, Markus   +9 more
core   +1 more source

Precipitation Extrapolation Nowcasting in Beijing-Tianjin-Hebei Under Different Weather Backgrounds

open access: yes应用气象学报, 2022
Rapid-refresh Multi-Scale Analysis and Prediction System-Integration (RMAPS_IN) is an important tool for Beijing, Hebei and other meteorological departments to make rapid-updated and refined precipitation nowcasting.
Wang Yuhong, Bica Benedikt
doaj   +1 more source

Optical High-Capacity Satellite Downlinks via High-Altitude Platform Relays [PDF]

open access: yes, 2007
Earth-observation (EO) satellite missions produce a large amount of data using high-resolution optical or radar sensors. During the last decades the amount of data has steadily increased due to improved sensor technologies with increased temporal ...
Florian Moll   +13 more
core   +1 more source

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