Feature Detection and Visualization of Ocean Flow Field Sources, Sinks Based on Vector Field Decomposition

摘要：

This paper provides a novel and efficient technique to detect and visualize the important features of ocean- sources and sinks. First, based on K. Polthiers 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.

关键词： feature visualization vector field decomposition sources links periodic rbits separatrices topology structure

作者: Xiaofen Chen Cui Xie Zhiqiang Wei

作者单位: Dept.of Computer Science&Technology, Ocean University of China Qingdao, Shandong Prov., China

会议类型: 国际会议

会议名称: 2009图像分析与信号处理国际会议(2009 International Conference on Image Analysis and Signal Processing)

会议地点: 浙江台州

会议语种:英文

页码: 260-264

在线出版日期: 2009-04-11（万方平台首次上网日期，不代表论文的发表时间）