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断层图象插值的二维形变法

DOI: 10.11834/jig.199808208

Keywords: 断层图象插值,形变,距离变换,形态学变换,三维重建

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Abstract:

提出了一种新的二维断层图象层间插值方法。该方法将有向距离变换和二维形变理论应用于断层图象的层间插值,继而应用于三维重建。该插值方法有3个步骤。首先,计算目标形状的位置和方向;其次,计算目标形状的距离映射图,并进行形状变换,最后,用迭代法对目标的位置和方向进行线性插值,对形状进行非线性插值。文中给出该插值方法应用于模拟图象和MRI图象的形状插值和三维重建的结果。

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