计算机工程 ›› 2011, Vol. 37 ›› Issue (17): 239-241.doi: 10.3969/j.issn.1000-3428.2011.17.080

• 工程应用技术与实现 • 上一篇    下一篇

相控阵三维声纳数据离线可视化处理系统

李长辉,陈耀武,刘清文   

  1. (浙江大学数字技术及仪器研究所,杭州 310027)
  • 收稿日期:2011-03-10 出版日期:2011-09-05 发布日期:2011-09-05
  • 作者简介:李长辉(1984-),男,硕士研究生,主研方向:可视化技术,嵌入式系统;陈耀武,教授、博士生导师;刘清文,硕士研究生
  • 基金项目:
    国家“863”计划海洋技术重大专项基金资助项目(2006 AA09Z109)

Off-line Visualization Processing System for Phased Array 3D Sonar Data

LI Chang-hui, CHEN Yao-wu, LIU Qing-wen   

  1. (Institute of Digital Technology and Instrument, Zhejiang University, Hangzhou 310027, China)
  • Received:2011-03-10 Online:2011-09-05 Published:2011-09-05

摘要: 设计并实现一种相控阵三维声纳图像的离线数据处理系统,并进行可视化建模。系统中精确配准采用最近点迭代配准,结合外围点消除法,通过拟牛顿进行最优化。拼接融合及多帧再重建采用多级分辨率,同时支持低精度的快速显示和高精度的精细显示。测试结果证明,该系统能较好地实现相控阵三维摄像声纳图像的处理及可视化。

关键词: 相控阵三维声纳, 单帧重建, 配准, 拼接, 可视化工具箱, 可视化

Abstract: In this paper, an off-line processing and visualization system of 3D phased array sonar data is designed. The system consists of modules of sonar data parsing, single-frame reconstruction, accurate registration, mosaicing and multi-frame reconstruction. The accurate registration module which includes Iterated Closest Point(ICP) algorithm with robust outlier rejection and Quasi-newton optimization, improves the precision of registration. The mosaicing and multi-frame reconstruction module reconstruct a range of frames by multilevel resolutions, which supports rapid display at low resolutions and also precise display for details at high resolutions. Test results show that this system can successfully complete the processing and visualization of phased array sonar data.

Key words: phased array 3D sonar, single-frame reconstruction, registration, mosaic, Visualization Toolkit(VTK), visualization

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