S Parvathavarthini, N Karthikeyani Visalakshi, S Shanthi
Department of Computer Technology, Kongu Engineering College, Perundurai, Tamilnadu, India. Email:
Asian Pac J Cancer Prev. 2019 Jan 25;20(1):157-165. doi: 10.31557/APJCP.2019.20.1.157.
Objective: Generally, medical images contain lots of noise that may lead to uncertainty in diagnosing the abnormalities. Computer aided diagnosis systems offer a support to the radiologists in identifying the disease affected area. In mammographic images, some normal tissues may appear to be similar to masses and it is tedious to differentiate them. Therefore, this paper presents a novel framework for the detection of mammographic masses that leads to early diagnosis of breast cancer. Methods: This work proposes a Crow search optimization based Intuitionistic fuzzy clustering approach with neighborhood attraction (CrSA-IFCM-NA) for identifying the region of interest. First order moments were extracted from preprocessed images. These features were given as input to the Intuitionistic fuzzy clustering algorithm. Instead of randomly selecting the initial centroids, crow search optimization technique is applied to choose the best initial centroid and the masses are separated. Experiments are conducted over the images taken from the Mammographic Image Analysis Society (mini-MIAS) database. Results: CrSA-IFCM-NA effectively separated the masses from mammogram images and proved to have good results in terms of cluster validity indices indicating the clear segmentation of the regions. Conclusion: The experimental results show that the accuracy of the proposed method proves to be encouraging for detection of masses. Thus, it provides a better assistance to the radiologists in diagnosing breast cancer at an early stage.
一般来说,医学图像包含大量噪声,这可能导致在诊断异常情况时产生不确定性。计算机辅助诊断系统为放射科医生识别疾病受影响区域提供支持。在乳腺钼靶图像中,一些正常组织可能看起来与肿块相似,区分它们很繁琐。因此,本文提出了一种用于检测乳腺钼靶肿块的新颖框架,以实现乳腺癌的早期诊断。方法:这项工作提出了一种基于乌鸦搜索优化的带邻域吸引的直觉模糊聚类方法(CrSA-IFCM-NA)来识别感兴趣区域。从预处理图像中提取一阶矩。这些特征作为输入提供给直觉模糊聚类算法。不是随机选择初始质心,而是应用乌鸦搜索优化技术来选择最佳初始质心并分离肿块。对从乳腺钼靶图像分析协会(mini-MIAS)数据库获取的图像进行实验。结果:CrSA-IFCM-NA有效地从乳腺钼靶图像中分离出肿块,并在聚类有效性指标方面证明具有良好结果,表明区域分割清晰。结论:实验结果表明,所提出方法的准确性在检测肿块方面令人鼓舞。因此,它在早期诊断乳腺癌方面为放射科医生提供了更好的帮助。