To improve quality of focused ultrasound images, the non-linear Filtered-Delay Multiply And Sum (F-DMAS) beamformer (DOI: 10.1109/TMI.2014.2371235) was recently proposed as an alternative to the common Delay And Sum (DAS). Given the higher computational cost as compared to DAS, in this paper we propose a simplified version of F-DMAS, which consists in applying DAS to the square root of the RF signals, followed by squaring and band-pass filtering. The lowered computational cost allows the use of the proposed beamformer in high frame-rate imaging, such as ultrafast imaging, or in 3D imaging. Besides, we generalize the method to the pthroot case, referred to as F-DAS1/p.
Polichetti, M., Varray, F., Matrone, G., Savoia, A.S., Bera, J., Cachard, C., et al. (2017). A computationally efficient non-linear beamformer based on pthroot signal compression for enhanced ultrasound B-mode imaging. In IEEE International Ultrasonics Symposium, IUS (pp.1-1). IEEE Computer Society.
Titolo: | A computationally efficient non-linear beamformer based on pthroot signal compression for enhanced ultrasound B-mode imaging |
Autori: | |
Data di pubblicazione: | 2017 |
Rivista: | |
Citazione: | Polichetti, M., Varray, F., Matrone, G., Savoia, A.S., Bera, J., Cachard, C., et al. (2017). A computationally efficient non-linear beamformer based on pthroot signal compression for enhanced ultrasound B-mode imaging. In IEEE International Ultrasonics Symposium, IUS (pp.1-1). IEEE Computer Society. |
Handle: | http://hdl.handle.net/11590/330033 |
ISBN: | 9781538633830 |
Appare nelle tipologie: | 4.2 Abstract in Atti di convegno |