心动图返流束特征提取及表示方法

将图象处理和信号处理的相关理论和方法用于动态彩色超声心动图影象分析，提出了一种返流束分割和特征提取表示的方法，该方法利用Ｈｏｕｇｈ变换、坐标映射及其他信号处理方法完成背景空腔的分割，并从血流显像的彩色特性和几何特性出发，用模糊聚类的方法得到了返流束分割。还对血流进行后处理和表示方法进行了研究。实验结果表明了本提出的方法是有效的，其结果对于临床医学也很有意义。

Factor Extraction and Expression of Regurgitation in Echocardiogram

Theories and techniques of signal and image processing are used in analysing the Doppler echocardiogram sequences, a new approach is proposed for regurgitation segmentation and factor extraction and expression. Hough thansform is used to locate the center of the left atrium, and the segmentation of the atrium is finished by coordinate transform and other technique of signal processing. The regurgitation is segmented by fuzzy clustering by combining the color characters and the geometry information before the post processing and some expressions. The experiment results indicate that the approach is effective and useful for the clinical medicine.