METHOD AND DEVICE FOR LOCALLY ESTIMATING THE SPEED OF SOUND IN A REGION OF INTEREST OF A MEDIUM

Abstract

The present invention relates to a method for analysing a medium using an array of transducers (T1-Tn), the method comprising: - acquiring (100) two reception signals each associated with a respective pair of waves transmitted and received according to transmission and reception directions; - deforming (200) the two reception signals to obtain two deformed signals, the deformation step comprising, for each reception signal, composition of the reception signal with an affine function dependent on half the angular difference between the transmission and reception directions of the pair associated with the reception signal; - locally estimating (300) the speed of sound in a region of interest of the medium based on the comparison of the two deformed signals.

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IPC Classification

A61B 8/ 00 A I A61B 8/ 08 A I