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Feature detection and visualization of ocean flow field sources, sinks based on vector field decomposition

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3 Author(s)
Xiaofen Chen ; Dept. of Computer Science&Technology, Ocean University of China, Qingdao, Shandong Prov., China ; Cui Xie ; Zhiqiang Wei

This paper provides a novel and efficient technique to detect and visualize the important features of ocean-sources and sinks. First, based on K. Polthier's decomposition algorithm, the flow field is decomposed to detect critical points of sources and sinks. Then a novel method is proposed that detects periodic orbits and separatrices by considering attachment and seperation points. Last, a new systematic technique is represented based on vector field topology and color mapping to generate streamlines and highlight important features of ocean-sources and sinks. Furthermore, the application of vector field visualization algorithms are described to Bohai Sea data to demonstrate its utility.

Published in:

2009 International Conference on Image Analysis and Signal Processing

Date of Conference:

11-12 April 2009