• DocumentCode
    2545191
  • Title

    A stochastic diffusion approach to signal denoising

  • Author

    Krim, Hamid ; Bao, Yufang

  • Author_Institution
    Dept. of Electr. & Comput. Eng., North Carolina State Univ., Raleigh, NC, USA
  • fYear
    2000
  • fDate
    2000
  • Firstpage
    236
  • Lastpage
    239
  • Abstract
    We present a stochastic formulation of a linear diffusion equation (or heat equation), and in light of the potential applications ranging from signal denoising to image enhancement/segmentation of its nonlinear extensions, we propose a more general nonlinear stochastic diffusion. The constructed stochastic framework, in contrast to traditional deterministic approaches, unveils the sources of of existing limitations and allows us to further significantly improve the performance by addressing the key problem. Substantiating examples are provided
  • Keywords
    AWGN; diffusion; filtering theory; image enhancement; image segmentation; nonlinear filters; partial differential equations; AWGN; PDE; SNR; additive white Gaussian noise; heat equation; image enhancement; image segmentation; linear diffusion equation; nonlinear filter; nonlinear stochastic diffusion; partial differential equation; signal denoising; staircase function; Kernel; Noise reduction; Nonlinear equations; Signal analysis; Signal denoising; Space heating; Stochastic processes; Stochastic resonance; Wavelet analysis; Working environment noise;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Sensor Array and Multichannel Signal Processing Workshop. 2000. Proceedings of the 2000 IEEE
  • Conference_Location
    Cambridge, MA
  • Print_ISBN
    0-7803-6339-6
  • Type

    conf

  • DOI
    10.1109/SAM.2000.878005
  • Filename
    878005