A new extrapolation technique for resolution enhancement of pulse-echo imaging systems

2002 ◽  
Vol 49 (3) ◽  
pp. 374-382 ◽  
Author(s):  
R. Carotenuto ◽  
G. Loi ◽  
M. Pappalardo
Keyword(s):  
Resolution Enhancement ◽  
Imaging Systems ◽  
Extrapolation Technique ◽  
Pulse Echo

Modeling and Computer Simulation of Ultrasound Imaging Systems and Human Tissues

1988 ◽  
Vol 10 (4) ◽  
pp. 229-247 ◽  
Author(s):  
Bum S. Lee ◽  
Song B. Park
Keyword(s):  
Imaging System ◽  
Acoustic Velocity ◽  
Imaging Systems ◽  
Inverse Filter ◽  
Axial Resolution ◽  
Gain Function ◽  
Field Patterns ◽  
Temporal Impulse Response ◽  
Dynamic Inverse ◽  
Pulse Echo

A simulator has been developed for an ultrasound linear scan B-mode imaging system. First, a numerical method of calculating field patterns or pulse echo patterns is presented for a full-aperture system with a given transducer geometry in nonattenuating and attenuating media, based on the measured temporal impulse response for a single transducer element immersed in water, and taking into account the variation of attenuation and acoustic velocity in human tissue. The simulator then models and simulates the receiver subsystems in detail using the received pulse echo. In particular, a dynamic inverse filter, to improve the axial resolution, and an unconventional TGC gain function, to reduce the SNR deterioration through logarithmic compression, are proposed. Finally, simulation and experimental results are presented and discussed.

Resolution enhancement in coherent imaging systems using a deep neural network

2020 ◽  
Author(s):  
Tairan Liu ◽  
Kevin d. Haan ◽  
Yair Rivenson ◽  
Zhensong Wei ◽  
Xin Zeng ◽  
...  
Keyword(s):  
Neural Network ◽  
Deep Neural Network ◽  
Resolution Enhancement ◽  
Imaging Systems ◽  
Coherent Imaging
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