Journal of South China University of Technology (Natural Science Edition) ›› 2008, Vol. 36 ›› Issue (9): 81-85.

• Electronics, Communication & Automation Technology • Previous Articles     Next Articles

Multi-Scale Fractional Lévy Stable-Motion Model of Underwater Image

Li Xu-tao1  Jin Lian-wen1  Gao Xue1  Yin Ming2   

  1. 1.School of Electronic and Information Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China; 2. Faculty of Automation, Guangdong University of Technology, Guangzhou 510006, Guangdong, China
  • Received:2007-09-10 Revised:2007-10-31 Online:2008-09-25 Published:2008-09-25
  • Contact: 李旭涛（1971-），男，博士后，主要从事图像处理、统计信号处理研究． E-mail:lixutao@scut．edu．cn
  • About author:李旭涛（1971-），男，博士后，主要从事图像处理、统计信号处理研究．
  • Supported by:

    国家“863”计划项目（2002AA401001-4B）;中国博士后科学基金资助项目（20070410823）

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Abstract:

This paper analyzes the increment distribution and self-similarity of typical underwater images. In order to overcome the disadvantages of the traditional fractal Brownian motion （FBM） model, a muhi-seale fractional Lévy stable-motion （MFLSM） model is proposed based on the fractional Lévy stable-motion （FLSM） model, in which the self-similarity parameter of image surface is considered as a variable to vary with the measure scale. The model is then extended to a 2D space and is further employed to simulate underwater scattering images. The results show that the proposed MFLSM model represents the multi-scale self-similarity and the speckle of underwater optical images well.

Key words: image processing, scattering image, multi-scale self-similarity, stable process