A Modified Sum Focussing Approach to Ultrasonic Speckle Reduction
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.
KeywordsBeam Steering Coherent Imaging Random Inhomogeneties Speckle Contrast Speckle Reduction
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