A Modified Sum Focussing Approach to Ultrasonic Speckle Reduction

  • Satpal Singh
  • S. N. Tandon
  • H. M. Gupta
Part of the Acoustical Imaging book series (ACIM, volume 15)


Ultrasonic speckle is inherrent in coherent imaging systems and is modelled as an interference. It occurs due to random inhomogeneties within the specimen under observation. This interference leads to a detection of randomly varying signal which manifests as a random variation of the gray level in the B scan. The resulting textural appearance in the image masks the details of specimen structure.


Beam Steering Coherent Imaging Random Inhomogeneties Speckle Contrast Speckle Reduction 
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Copyright information

© Plenum Press, New York 1987

Authors and Affiliations

  • Satpal Singh
    • 1
  • S. N. Tandon
    • 1
  • H. M. Gupta
    • 2
  1. 1.Centre for Biomedical EngineeringIndian Institute of Technology Delhi-16India
  2. 2.Electrical Engineering DepartmentIndian Institute of Technology Delhi-16India

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