Non-Gaussian modeling and multiscale Bayesian processing for various signal modalities

  • Multiscale methods have revolutionized signal processing. Wavelets are particularly suited for representing and yielding sparse and structured representations of piecewise smooth signals such as images.
  • We accurately characterized the sparsity of the wavelet coefficients by using alpha-stable statistical modeling.
  • We designed new Bayesian algorithms based on the more accurate models. We tested and validated our processing philosophy to various application domains including.
    • image retrieval, fusion, and watermarking
    • SAR image denoising and autofocus
    • underwater acoustic signal classification
    • biomedical (ultrasound, microarray, miRNA) signal enhancement and classification


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