Phase-Insensitive Pulse-Echo Imaging

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Abstract
A method for reducing speckle in B-scan images using phase-insensitive detection is presented. This technique is based on the nonlinear processing of the detected output of an array of transducers. Using this method, phase-insensitive images of tissue phantoms have been compared to conventional phase-sensitive images of the same objects. The results of this comparison suggest that phase-insensitive imaging can reduce speckle in B-scan images.

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