Quantifying and Reducing the Operator Effect in LSPIV Discharge Measurements
Water Resources ResearchOperator choices, both in acquiring the video and data and in processing them, can be a prominent source of error in image‐based velocimetry methods applied to river discharge measurements.
Guillaume Bodart, Jérôme Le Coz
exaly +7 more sources
Exploiting LSPIV to assess debris-flow velocities in the field [PDF]
Natural Hazards and Earth System Sciences, 2018 The assessment of flow velocity has a central role in quantitative analysis of debris flows, both for the characterization of the phenomenology of these processes and for the assessment of related hazards. Large-scale particle image velocimetry (LSPIV)
J. I. Theule +5 more
doaj +6 more sources
Real-Time Measurement of Flash-Flood in a Wadi Area by LSPIV and STIV
Hydrology, 2019 Flash floods in wadi systems discharge large volumes of water to either the sea or the desert areas after high-intensity rainfall events. Recently, wadi flash floods have frequently occurred in arid regions and caused damage to roads, houses, and ...
Sameh Ahmed Kantoush +2 more
exaly +4 more sources
Using a 2D shallow water model to assess Large-Scale Particle Image Velocimetry (LSPIV) and Structure from Motion (SfM) techniques in a street-scale urban drainage physical model [PDF]
Journal of Hydrology, 2019 Versión aceptada de https://doi.org/10.1016/j.jhydrol.2019.05.003[Abstract:] Physically-based numerical modelling of surface processes in urban drainage, such as pollutant wash-off or the assessment of flood risks, requires appropriate calibration and ...
Juan Naves, Jose Anta
exaly +4 more sources
Increasing LSPIV performances by exploiting the seeding distribution index at different spatial scales [PDF]
Journal of Hydrology, 2021 Image-based approaches for surface velocity estimations are becoming increasingly popular because of the increasing need for low-cost river flow monitoring methods.
Silvano Fortunato Dal Sasso +2 more
exaly +5 more sources
Measurement of Blood Velocity With Laser Scanning Microscopy: Modeling and Comparison of Line-Scan Image-Processing Algorithms. [PDF]
Front Physiol, 2022 Laser scanning microscopy is widely used to measure blood hemodynamics with line-scans in physiological and pathological vessels. With scans of broken lines, i.e., lines made of several segments with different orientations, it also allows simultaneous ...
Chaigneau E, Charpak S.
europepmc +2 more sources
Laboratory modelling of urban flooding. [PDF]
Sci Data, 2022 Measurement(s) flow depth • Outflow discharge • Surface velocity field • Inflow discharge Technology Type(s) Ultrasonic sensor • Calibrated rating curve Q~H • Large Scale Particle Images Velocity (LSPIV) with a commercial camera LUMIX-GH4 ...
Li X +5 more
europepmc +2 more sources
An Evaluation of Image Velocimetry Techniques under Low Flow Conditions and High Seeding Densities Using Unmanned Aerial Systems [PDF]
Remote Sensing, 2020 Image velocimetry has proven to be a promising technique for monitoring river flows using remotely operated platforms such as Unmanned Aerial Systems (UAS).
Sophie Pearce +13 more
doaj +5 more sources
Hydraulic, wash-off and sediment transport experiments in a full-scale urban drainage physical model. [PDF]
Sci Data, 2020 [Abstract] This paper presents a dataset obtained from hydraulic and sediment transport experiments performed in a full-scale urban drainage physical model of 36 m2.
Naves J, Anta J, Suárez J, Puertas J.
europepmc +4 more sources
Revista de TeledetecciónThis study is motivated by the difficulty of applying experimental techniques to characterize base flows in mountain rivers. Intrusive instruments are not optimal for measuring low flow rates, as they require a minimum depth to be submerged and to ...
Santiago A. Ochoa-García +4 more
doaj +2 more sources