Title :
Velocity vectors for features of sequential oceanographic images
Author :
Cho, E.C. ; Seetharaman, Guna ; Lybanon, M.
Author_Institution :
Kentucky State Univ., Frankfort, KY
fDate :
5/1/1998 12:00:00 AM
Abstract :
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
Keywords :
feature extraction; image processing; oceanographic regions; oceanographic techniques; remote sensing; Gulf Stream; IR image; North Atlantic; approximation method; circulation; current; feature extraction; image feature; image motion; image processing; image sequences; measurement technique; ocean dynamics; remote sensing; sea surface; sequential image; simplicial approximation; time-varying imagery; velocity fiel; velocity vector; Approximation methods; Computer vision; Feature extraction; Laboratories; Motion estimation; Ocean temperature; Satellite broadcasting; Sea surface; Streaming media; Temperature measurement;
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on