Simulation of ultrasound nonlinear propagation on GPU using a generalized angular spectrum method

Francois Varray 1, 2, * Christian Cachard 1 Alessandro Ramalli 1, 2 Piero Tortoli 2 Olivier Basset 1
* Auteur correspondant
1 Imagerie Ultrasonore
CREATIS - Centre de Recherche en Acquisition et Traitement de l'Image pour la Santé
Abstract : Acoustic simulation has always played an important role in the development of new ultrasound imaging techniques. In nonlinear ultrasound imaging particularly, the simulators are accurate but time-consuming, because of the high derivative order of the propagation equation and to the classic solution based on finite difference schemes. This article presents a fast 3D + t nonlinear ultrasound simulator, based on a generalized angular spectrum method, particularly fit for the graphics processing unit (GPU). Indeed, the Fourier domain approach decreases the derivative order of the propagation, thus significantly speeding up the simulation time. The simulator was implemented and optimized on a central processing unit (CPU) and a GPU, respectively. The processing times measured on two different graphic cards show that, compared to the CPU, GPU-based implementation is 3.5-13.6 times faster.
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Article dans une revue
EURASIP Journal on Image and Video Processing, Springer, 2011, 2011 (1), pp.17
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Soumis le : jeudi 24 novembre 2011 - 17:05:28
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Francois Varray, Christian Cachard, Alessandro Ramalli, Piero Tortoli, Olivier Basset. Simulation of ultrasound nonlinear propagation on GPU using a generalized angular spectrum method. EURASIP Journal on Image and Video Processing, Springer, 2011, 2011 (1), pp.17. 〈inserm-00644611〉

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