Internet-Journal "Computer Graphics & Geometry"
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COMPUTER GRAPHICS & GEOMETRY

Issue Year: 2001
Date: Spring
Volume: 3
Number: 1
Pages: 60-79

Article Name: APPLYING FEATURE TRACKING TO FLOW VISUALISATION
Author: Dmitry Chetverikov
Address: Dmitry Chetverikov Budapest Computer and Automation Research Institute, Hungary
Abstract:

Digital Particle Image Velocimetry (DPIV) aims at flow visualisation and measurement of flow dynamics. The fluid is seeded with particles that follow the flow and efficiently scatter light. Traditionally, FFT based correlation techniques have been used to estimate the displacements of the particles in a digital PIV sequence. Recently, an optical flow estimation technique developed in computer vision has been successfully applied to DPIV. In this paper we study the DPIV-efficiency of another group of tracking approaches, the feature tracking techniques. It is concluded that feature tracking algorithms applied to DPIV are a good alternative to both the correlation and the optical flow algorithms.

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