Schlieren and shadowgraph techniques are used around the world for imaging and
measuring phenomena in transparent media. These optical methods originated long ago in …

This article gives an overview of the background-oriented schlieren (BOS) technique, typical
applications and literature in the field. BOS is an optical density visualization technique …

We compare the results of three quantitative schlieren techniques applied to the
measurement and visualization of a two-dimensional laminar free-convection boundary …

We apply background-oriented schlieren (BOS) imaging with computed tomography to
reconstruct the instantaneous refractive index field of a turbulent flame in 3D. In BOS …

Fluid simulation is one of the most active research areas in computer graphics. However, it
remains difficult to obtain measurements of real fluid flows for validation of the simulated …

Three-dimensional density information of a double free air jet was acquired using optical
tomography. The projections of the density field were measured using the background …

Optical flow provides an opportunity to elevate the resolution and sensitivity of deflection
sensing in background-oriented schlieren (BOS). Despite extensive relevant literature within …

The background oriented schlieren method (BOS) allows for accurate flow measurements
with a simple experimental configuration. To estimate per-pixel displacement vectors …

Aero-optical distortion effects on the accuracy of particle image velocimetry (PIV) are
investigated. When the illuminated particles are observed through a medium that is optically …

Due to the recent progresses in sensor and laser technologies, volumetric tomography has
become a popular diagnostic for combustion studies. Background-oriented Schlieren …