基于模板的骨骼参数自动测量方法

发布时间：2018-09-16 20:55

【摘要】：为快速测量骨骼形态参数,提出基于模板的自动测量方法。首先通过在骨骼模型上构建参考实体、设置层次化语义参数,生成测量模板;然后先对待测量骨骼向测量模板做刚体配准,再对测量模板向待测量骨骼做非刚体配准;最后将变形后的测量模板作为待测量骨骼的替代模型,同时根据测量模板上标定的特征点实现骨骼参数的自动计算。以股骨为例,实验结果表明,利用基于模板的测量方法可以快速测量出股骨的一整套形态参数,且测量结果与现有软件测量结果基本一致;部分骨骼参数具有较强相关性,且大多数参数分布形态基本对称,接近正态分布。这为后期对股骨形态参数作进一步分析以及接骨板的参数设计提了供科学的理论依据。
[Abstract]:An automatic measurement method based on template was proposed to measure bone shape parameters quickly. Firstly, the reference entity is constructed on the bone model, and the hierarchical semantic parameters are set up to generate the measurement template, then the measurement skeleton is registered with the measurement template, and then the measurement template is registered with the non-rigid body to be measured. Finally, the deformed measurement template is used as the substitute model for the bone to be measured. At the same time, the bone parameters are automatically calculated according to the characteristic points calibrated on the measurement template. Taking the femur as an example, the experimental results show that a whole set of morphological parameters of the femur can be measured quickly by using the template-based measurement method, and the results are basically consistent with those of the existing software, and some of the bone parameters have strong correlation. Most parameter distributions are symmetrical and close to normal distribution. This provides a scientific theoretical basis for the further analysis of femoral morphological parameters and the design of bone plate parameters.
【作者单位】： 河海大学物联网工程学院;常州市图形图像与骨科植入物数字化技术重点实验室;
【基金】：江苏省科技支撑计划(BE2014048) 江苏省自然科学基金(BK20141158) 江苏省普通高校研究生科研创新计划项目(KYZZ15_0152)资助
【分类号】：R683;TP391.7
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本文编号：2244758