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- W2090951982 abstract "A model is presented for the radio-frequency image produced by a B-scan (pulse-echo) ultrasound imaging system using a phased-array transducer. This type of scanner is widely used for real-time heart imaging. The model allows for dynamic focusing as well as an acoustic lens focusing the beam in the elevation plane. A result of the model is an expression to compute the space-variant point spread function (PSF) of the system. This is made possible by the use of a combination of Fresnel and Fraunhoffer approximations which are valid in the range of interest for practical applications. The PSF is used to design restoration filters in order to improve image resolution. The filters are then applied to experimental images of wires." @default.
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- W2090951982 date "1985-07-01" @default.
- W2090951982 modified "2023-09-24" @default.
- W2090951982 title "Modelling and restoration of ultrasonic phased-array B-scan images" @default.
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- W2090951982 doi "https://doi.org/10.1016/0161-7346(85)90010-0" @default.
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