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Beamforming of ultrasound images modelled as stable random variables

Teodora Szasz 1 Adrian Basarab 1 Denis Kouamé 1
1 IRIT-TCI - Traitement et Compréhension d’Images
IRIT - Institut de recherche en informatique de Toulouse
Abstract : This paper presents a new beamforming method for ultrasound medical imaging based upon the statistical characterization of the ultrasound signals by α-stable distributions. The proposed method was evaluated on ultrasound simulated and in vivo thyroid data. In simulation, an improvement in contrast ratio of 2.84 dB, 11.52 dB, and 13.33 dB was obtained compared with minimum variance, delay-and-sum, and least squares beamformers respectively. Applied on in vivo data and compared to delay-and-sum and least squares, our method increases the contrast ratio between the tumor and the healthy tissue by 1.28 dB, respectively 1.54 dB.
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  • HAL Id : hal-01517381, version 1
  • OATAO : 17010

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Teodora Szasz, Adrian Basarab, Denis Kouamé. Beamforming of ultrasound images modelled as stable random variables. IEEE International Ultrasonics Symposium (IUS 2016), Sep 2016, Tours, France. pp. 1-4. ⟨hal-01517381⟩

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