IEEE Trans Ultrason Ferroelectr Freq Control. 2009 Sep;56(9):1856-60. doi: 10.1109/TUFFC.2009.1261.
Color Doppler ultrasound is a routinely used diagnostic tool for assessing blood flow information in real time. The required signal processing is computationally intensive, involving autocorrelation, linear filtering, median filtering, and thresholding. Because of the large amount of data and high computational requirement, color Doppler signal processing has been mainly implemented on custom-designed hardware, with software-based implementation--particularly on a general-purpose CPU--not being successful. In this paper, we describe the use of a graphics processing unit for implementing signal-processing algorithms for color Doppler ultrasound that achieves a frame rate of 160 fps for frames comprising 500 scan lines x 128 range samples, with each scan line being obtained from an ensemble size of 8 with an 8-tap FIR clutter filter.
彩色多谱勒超声是一种常用的诊断工具，用于实时评估血流信息。所需的信号处理计算量很大，涉及自相关、线性滤波、中值滤波和阈值处理。由于数据量大且计算要求高，彩色多谱勒信号处理主要在定制的硬件上实现，基于软件的实现——特别是在通用 CPU 上——并不成功。在本文中，我们描述了使用图形处理单元 (GPU) 来实现彩色多谱勒超声信号处理算法，该算法实现了帧率为 160 fps 的帧，这些帧由 500 条扫描线 x 128 个距离样本组成，每条扫描线由 8 个样本的集合大小和 8 抽头 FIR 杂波滤波器获得。
