arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1902.07458cs.CV
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基于X线图像线特征的人工神经网络长骨骨折检测

Long-Bone Fracture Detection using Artificial Neural Networks based on Line Features of X-ray Images

University of the Witwatersrand(威特沃特斯兰德大学)

Alice Yi Yang, Ling Cheng

摘要:

提出并讨论了两种基于线的裂缝检测方案,即基于标准线的裂缝检测和基于自适应微分参数优化(ADPO)线的裂缝检测。这两种基于线的裂缝检测方案的目的是使用基于识别图案的提取特征从X射线图像检测裂缝线,以区分裂缝线与非裂缝线。这两种方案之间的区别在于对细节线的检测。ADPO方案优化了概率霍夫变换的参数,使得检测到断裂区域内的颗粒线,而标准方案无法检测到它们。使用概率霍夫函数检测线,其中检测到的线是图像边缘对象的表示。这些线以点的形式给出,(x,y),其中包括起点和终点。基于给定的线点,从每条线上提取13个特征,作为线信息的汇总。这些特征用于检测到的线的断裂和非断裂分类。分类是由人工神经网络(ANN)。有两个评估,用于评估整个系统和人工神经网络。标准方案能够实现74.25%的平均准确度,而ADPO方案实现了74.4%的平均准确度。选择ADPO方案而不是标准方案,但是可以通过检测到的轮廓及其提取的特征进一步改进。

英文摘要:

Two line-based fracture detection scheme are developed and discussed, namely Standard line-based fracture detection and Adaptive Differential Parameter Optimized (ADPO) line-based fracture detection. The purpose for the two line-based fracture detection schemes is to detect fractured lines from X-ray images using extracted features based on recognised patterns to differentiate fractured lines from non-fractured lines. The difference between the two schemes is the detection of detailed lines. The ADPO scheme optimizes the parameters of the Probabilistic Hough Transform, such that granule lines within the fractured regions are detected, whereas the Standard scheme is unable to detect them. The lines are detected using the Probabilistic Hough Function, in which the detected lines are a representation of the image edge objects. The lines are given in the form of points, (x,y), which includes the starting and ending point. Based on the given line points, 13 features are extracted from each line, as a summary of line information. These features are used for fracture and non-fracture classification of the detected lines. The classification is carried out by the Artificial Neural Network (ANN). There are two evaluations that are employed to evaluate both the entirety of the system and the ANN. The Standard Scheme is capable of achieving an average accuracy of 74.25%, whilst the ADPO scheme achieved an average accuracy of 74.4%. The ADPO scheme is opted for over the Standard scheme, however it can be further improved with detected contours and its extracted features.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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