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Contribution à l'imagerie ultrasonore quantitative

Abstract : We first present an imaging technique based on the diffraction tomography approach . Experimental results on phantoms will be used to analyse this method at its various stages and illustrate its capabilities. The images is a map of the density of the sources induced in the object by the incident wave. This density is the product of the pressure field in the object by a simple function f (C, a) of the sound speed C and attenuation a in the object . We then present an iterative algorithm that isolate f (C, a) and allows the determination of C and a . This approach will be discussed through results obtained by numerical simulation .
Keywords : ultrasound imaging
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https://hal-centralesupelec.archives-ouvertes.fr/hal-01262849
Contributor : Dominique Lesselier <>
Submitted on : Wednesday, January 27, 2016 - 11:46:57 AM
Last modification on : Wednesday, September 16, 2020 - 5:45:32 PM

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  • HAL Id : hal-01262849, version 1

Citation

Bernard Duchêne, Dominique Lesselier, Walid Tabbara. Contribution à l'imagerie ultrasonore quantitative. Traitement du Signal, Lavoisier, 1985, 2 (5 Sp), pp.473-477. ⟨hal-01262849⟩

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