杂交元是假定单元内部平衡的应力和相邻单元间协调的边界位移。
Hybrid element is the element that the stress is balanced inside the element and the border displacements is compatible between adjacent elements.
针对切割边界通过多自由度单元的子模型，提出了边界位移计算方法。
In allusion to the sub-model of which incision boundary via multi-degree freedom element. this paper puts forward the method of computing boundary displacement.
采用图像分割方法分割出序列图像上的心脏边界，匹配连续两帧之间的边界得到边界位移量。
The heart boundary on the sequence image can be divided by the image segmentation method and is matched with the boundary between two continuous frames to form the boundary displacement amount.
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