Spatio-temporal image-based parametric water surface reconstruction: a novel methodology based on refraction

Abstract

Volumetric particle image velocimetry with a single plenoptic camera Timothy W Fahringer, Kyle P Lynch and Brian S Thurow-A curve fitting method for extrinsic camera calibration from a single image of a cylindrical object A W Winkler

Towards transient experimental water surfaces: A new benchmark dataset for 2D shallow water solvers

“…This is a task for which optical methods are best suited. Refractionbased reconstructions [37][38][39], stereophotography-based measurements [37,38,40,41], photogrammetry-based methods [42,43] (although restricted to steady flows), light absorption methods [44,45], stereo-correlation [46], stereo-refraction [47] and twin-camera refraction analysis of reflected laser light and PIV [48] have all been tested in attempts to capture moving water surfaces, each with their inherent drawbacks on requiring projected referenced grids, specific lighting, sophisticated and expensive equipment, and technical challenges in their setup and processing.…”

2D experiments and numerical simulation of the oscillatory shallow flow in an open channel lateral cavity

“…Free surface variations are due to the intrinsic mechanisms governing the flow and may sometimes appear in the form of gravity waves. A particular type of gravity waves are seiches, which are standing resonant waves usually appearing in bounded flows such as channel lateral cavities [10,11,12,13].…”

A single-camera synthetic Schlieren method for the measurement of free liquid surfaces

“…However, using multiple cameras raises the hardware costs, results in more time-consuming calibration of the camera positions, and requires more computation power in the post-processing. Recently, Engelen et al (2018) proposed a method with a single camera for the surface measurements, which relies on the condition that the surface topography can be depicted by a parametric model.…”