Jumiawi Walaa Ali H, El-Zaart Ali
Department of Mathematics and Computer Science, Faculty of Science, Beirut Arab University, Beirut 11072809, Lebanon.
J Imaging. 2022 Feb 11;8(2):43. doi: 10.3390/jimaging8020043.
Computer vision plays an important role in the accurate foreground detection of medical images. Diagnosing diseases in their early stages has effective life-saving potential, and this is every physician's goal. There is a positive relationship between improving image segmentation methods and precise diagnosis in medical images. This relation provides a profound indication for feature extraction in a segmented image, such that an accurate separation occurs between the foreground and the background. There are many thresholding-based segmentation methods found under the pure image processing approach. Minimum cross entropy thresholding (MCET) is one of the frequently used mean-based thresholding methods for medical image segmentation. In this paper, the aim was to boost the efficiency of MCET, based on heterogeneous mean filter approaches. The proposed model estimates an optimized mean by excluding the negative influence of noise, local outliers, and gray intensity levels; thus, obtaining new mean values for the MCET's objective function. The proposed model was examined compared to the original and related methods, using three types of medical image dataset. It was able to show accurate results based on the performance measures, using the benchmark of unsupervised and supervised evaluation.
计算机视觉在医学图像的精确前景检测中起着重要作用。在疾病早期进行诊断具有有效的挽救生命的潜力,这是每位医生的目标。改进图像分割方法与医学图像中的精确诊断之间存在正相关关系。这种关系为分割图像中的特征提取提供了深刻的指示,从而在前景和背景之间实现准确分离。在纯图像处理方法下发现了许多基于阈值的分割方法。最小交叉熵阈值法(MCET)是医学图像分割中常用的基于均值的阈值法之一。本文旨在基于异质均值滤波方法提高MCET的效率。所提出的模型通过排除噪声、局部离群值和灰度强度水平的负面影响来估计优化均值;从而为MCET的目标函数获得新的均值。使用三种类型的医学图像数据集,将所提出的模型与原始方法和相关方法进行了比较。基于性能度量,以无监督和有监督评估为基准,它能够显示出准确的结果。