Velocity vectors for features of sequential oceanographic images

• Published in: IEEE transactions on geoscience and remote sensing Vol. 36; no. 3; pp. 985 - 998
• Main Authors: Cho, E.C., Seetharaman, G., Holyer, R.J., Lybanon, M.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.05.1998; Institute of Electrical and Electronics Engineers
• Subjects: Applied geophysics; Approximation methods; Computer vision; Earth sciences; Earth, ocean, space; Exact sciences and technology; Feature extraction; Internal geophysics; Laboratories; Marine geology; Motion estimation; Ocean temperature; Satellite broadcasting; Sea surface; Streaming media; Temperature measurement; North Atlantic; Gulf Stream; ocean currents; triangulation; Atlantic Ocean; Space remote sensing; imagery; mathematical models; radiometry; deformation; velocity; high resolution
• ISSN: 0196-2892; 1558-0644
• DOI: 10.1109/36.673689

This paper investigates a fundamental problem of determining the position, orientation, and velocity field of the Gulf Stream in time-varying imagery. The authors propose an approximation method to characterize the deformation of these image motions for the purpose of estimating the velocity field of these images. The technique is focused on the interpretation of the change in the extracted features of the Gulf Stream. The underlying technique employs a triangulation of the region by a simplicial approximation of the velocity field on each triangle. A generalized computational framework, an outline of the mathematical foundation, and an implementation are presented.