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A SYSTEM FOR MODELING STATIC AND DYNAMIC THREE DIMENSIONAL ANATOMICAL STRUCTURES BY 3-D MODELS

机译:通过3D模型对静态和动态三维解剖结构建模的系统

摘要

The present invention relates to a system of modeling a three dimensional target object which is represented by a plurality of cross-sectional images in order to provide a representative corresponding three dimensional model. The invention selects an initial model from a plurality of available initial models. This selection involves identifying an initial model based on physical similarity to the target object and then superimposing an initial model upon the target object, for each of the plurality of cross-sectional images. A determination is then made of an intersection contour of the initial model and a cross-sectional image of the target object and the determined intersection contour is refined in order to more closely delineate the target object. By sub-sampling points which represent the refined determined intersection contour, the invention obtains a sub-sampled contour dataset. The initial model is then adjusted towards the sub-samples contour to obtain a representative three dimensional model of the target object.
机译:本发明涉及一种对三维目标物体建模的系统,该三维目标物体由多个横截面图像表示,以便提供代表性的对应三维模型。本发明从多个可用的初始模型中选择初始模型。对于多个截面图像中的每一个,该选择包括基于与目标对象的物理相似性来识别初始模型,然后将初始模型叠加在目标对象上。然后确定初始模型的相交轮廓和目标物体的横截面图像,并且对确定的相交轮廓进行精化,以便更精确地描绘目标物体。通过代表改进的确定的相交轮廓的子采样点,本发明获得了子采样轮廓数据集。然后,朝着子样本轮廓调整初始模型,以获得目标对象的代表性三维模型。

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