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Dynamic receive beamforming updates focusing delays for every samples of a scanline, leading to increased hardware complexity. To reduce this, pseudo-dynamic receive beamforming is applied to divide scanlines into windows and each window shares the same focusing delays. However, only one sample in a window is in focus, while the rest are out of focus. This paper presents a method to enhance pseudo-dynamic...
This paper presents two methods for reducing complexity of dynamic receive beamforming in order to be implemented on a single field-programmable gate array (FPGA) with 500K gates. These methods apply windows to divide each scanline into segments and each segment has its own focus at the center. One method uses constant window size and the other applies dynamic window size that equalizes the off-focus...
This paper presents a hardware design of an ultrasound imaging system for transmitting pulses and acquiring echo signals to/from individual elements of an array transducer. Since most of the ultrasound imaging systems in the market provide only image files after reconstruction, the presented hardware can be controlled by a computer in order to transmit pulses in specific patterns to transducer elements...
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