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Proceedings Paper

Computing optical flow using a discrete, spatio-temporal, wavelet multiresolution analysis
Author(s): Thomas J. Burns; Steven K. Rogers; Mark E. Oxley; Dennis W. Ruck
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Paper Abstract

This paper describes a wavelet-based system for computing localized velocity fields associated with time-sequential imagery. The approach combines the mathematical rigor of the multiresolution wavelet analysis with well known spatiotemporal frequency flow computation principles. The foundation of the approach consists of a unique, nonhomogeneous multiresolution wavelet filter bank designed to extract moving objects in a 3D image sequence based on their location, size and speed. The filterbank is generated by an unconventional 3D subband coding scheme that generates twenty orientation tuned filters at each spatial and temporal resolution. The frequency responses of the wavelet filter bank are combined using a least-squares method to assign a velocity vector to each spatial location in an image sequence. Several examples are provided to demonstrate the flow computation abilities of the wavelet vector motion sensor.

Paper Details

Date Published: 15 March 1994
PDF: 12 pages
Proc. SPIE 2242, Wavelet Applications, (15 March 1994);
Show Author Affiliations
Thomas J. Burns, Air Force Institute of Technology (United States)
Steven K. Rogers, Air Force Institute of Technology (United States)
Mark E. Oxley, Air Force Institute of Technology (United States)
Dennis W. Ruck, Air Force Institute of Technology (United States)

Published in SPIE Proceedings Vol. 2242:
Wavelet Applications
Harold H. Szu, Editor(s)

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