运动员膝关节软骨挫伤图像特征点匹配仿真

发布时间：2018-03-11 18:00

本文选题：运动员　切入点：膝关节软骨挫伤　出处：《计算机仿真》2017年10期 　论文类型：期刊论文

【摘要】：对运动员膝关节软骨挫伤图像的特征点匹配,能够对运动员膝关节软骨撕裂挫伤进行更精确的诊断。对图像的特征点匹配,需要通过两个像点间的相关系数函数,对两个图像点集进行匹配,完成对挫伤图像的特征点匹配。传统方法根据膝关节软骨挫伤方块的角点数信息,得到图像基本轮廓,但忽略了对图像点集的匹配,导致特征点匹配精度偏低。提出基于边缘轮廓角点分割的运动员膝关节软骨挫伤图像特征点匹配方法。融合于像点特征相关性原理构建运动员膝关节软骨挫伤图像采集模型,利用阈值降噪方法对采集的图像进行降噪滤波预处理,得到三维虚交点坐标,融合于双向权值匹配方法计算出两个像点间的相关系数函数,并利用上述函数对两个图像点集进行匹配,依据匹配的结果完成对运动员膝关节软骨挫伤图像特征点匹配。实验结果表明,所提方法特征点匹配精度较高,可以为运动员膝关节软骨挫伤诊断提供客观的依据。
[Abstract]:To match the characteristic points of athletes' knee articular cartilage contusion images, it is possible to make a more accurate diagnosis of the athlete's knee cartilage laceration contusion, and to match the characteristic points of the images, we need to pass the correlation coefficient function between the two image points. The traditional method is based on the angle number information of articular cartilage contusion square to get the basic contour of the image, but neglects the matching of the image point set. Because of the low accuracy of feature point matching, this paper presents a method of feature point matching based on edge contour corner segmentation of athletes' articular cartilage contusion image. The image acquisition model of athlete's knee articular cartilage contusion image is constructed by combining the image point feature correlation principle with the image point feature correlation principle. Using the threshold denoising method to pre-process the image acquired by de-noising filtering, the three-dimensional virtual intersection coordinates are obtained, and the correlation coefficient function between the two image points is calculated by combining the two-way weight matching method. The above function is used to match the two image points set, according to the matching results, the feature points of the athletes' knee articular cartilage contusion image are matched. The experimental results show that the proposed method has a higher matching accuracy. It can provide objective basis for diagnosis of articular cartilage contusion of athletes.
【作者单位】：山东大学(威海);
【分类号】：R873;TP391.41

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