Using sonar speckle to identify regions of interest and for mine detection

@inproceedings{Kessel2002UsingSS,
  title={Using sonar speckle to identify regions of interest and for mine detection},
  author={Ronald T. Kessel},
  booktitle={SPIE Defense + Commercial Sensing},
  year={2002}
}
Modern sidescan sonars produce echographs that look rather like aerial photographs of the seafloor, with a few important differences. Not least is their obvious sonar speckle---random pixel-to-pixel variations of the image intensity across flat surfaces (smooth sand, mud, clay, or fine gravel for instance) that cannot be attributed to system noise alone. Speckle is in fact sediment dependent, suggesting that it might be used for sediment classification, but the wide variation of speckle… CONTINUE READING