The system of automatic boundary data acquisition can obtain the curve data of the endocardium boundary of left ventricle with the tracing algorithm of the gradient image edge.
自动边界数据采集系统是用梯度边缘追踪法自动获取左室内膜边界的曲线点，使用三次曲线插值法及最小二乘法拟合整条左室边界曲线。
Firstly, a novel edge curve detecting and tracing algorithm is proposed in this dissertation based the connectivity characteristics of the edge curve in 2D images.
首先，本文基于连续边缘曲线的连通特性，提出了一个二维图像中阶梯型边缘曲线的检测与追踪算法。
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