| Autor: |
Chen, Chuan, Hendriks, G.A.G.M., Hansen, H.H.G., de Korte, C.L. |
| Přispěvatelé: |
Physics of Fluids |
| Jazyk: |
angličtina |
| Rok vydání: |
2017 |
| Zdroj: |
2017 IEEE International Ultrasonics Symposium, IUS 2017 |
| Popis: |
Different from conventional focused ultrasound, ultrafast ultrasound imaging employs full-field transmission such as a plane wave to achieve frame rates in the order of 10 kHz. Image reconstruction of plane-wave ultrasound is more computational efficient to be processed in Fourier domain than in time domain. A widely-applied seismic wave migration technique, the Stolt's f-k Fourier-domain method, was modified to fit the plane wave transmission-receiving process into the Exploding Reflector Model (ERM). In comparison with the ideal fitting in Lu's f-k method, the fitting in the Stolt's f-k is slightly imprecise for the higher lateral Fourier components that results in residual patterns that degrade the image quality. We propose a template that can be applied in Fourier domain directly to deconvolute the residual point spread function (residual PSF) induced by imprecise fitting. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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