Ma Li, Shuai Renjun, Ran Xuming, Liu Wenjia, Ye Chao
College of Computer Science and Technology, Nanjing Tech University, Nanjing, 211816, China.
College of Mathematics and Statistics, Chongqing Jiaotong University, Chongqing, 400074, China.
Med Biol Eng Comput. 2020 Jun;58(6):1251-1264. doi: 10.1007/s11517-020-02163-3. Epub 2020 Mar 27.
In medicine, white blood cells (WBCs) play an important role in the human immune system. The different types of WBC abnormalities are related to different diseases so that the total number and classification of WBCs are critical for clinical diagnosis and therapy. However, the traditional method of white blood cell classification is to segment the cells, extract features, and then classify them. Such method depends on the good segmentation, and the accuracy is not high. Moreover, the insufficient data or unbalanced samples can cause the low classification accuracy of model by using deep learning in medical diagnosis. To solve these problems, this paper proposes a new blood cell image classification framework which is based on a deep convolutional generative adversarial network (DC-GAN) and a residual neural network (ResNet). In particular, we introduce a new loss function which is improved the discriminative power of the deeply learned features. The experiments show that our model has a good performance on the classification of WBC images, and the accuracy reaches 91.7%. Graphical Abstract Overview of the proposed method, we use the deep convolution generative adversarial networks (DC-GAN) to generate new samples that are used as supplementary input to a ResNet, the transfer learning method is used to initialize the parameters of the network, the output of the DC-GAN and the parameters are applied the final classification network. In particular, we introduced a modified loss function for classification to increase inter-class variations and decrease intra-class differences.
在医学中,白细胞在人体免疫系统中发挥着重要作用。不同类型的白细胞异常与不同疾病相关,因此白细胞的总数和分类对于临床诊断和治疗至关重要。然而,传统的白细胞分类方法是先分割细胞、提取特征,然后进行分类。这种方法依赖于良好的分割效果,且准确率不高。此外,在医学诊断中使用深度学习时,数据不足或样本不均衡会导致模型的分类准确率较低。为了解决这些问题,本文提出了一种基于深度卷积生成对抗网络(DC-GAN)和残差神经网络(ResNet)的新型血细胞图像分类框架。特别地,我们引入了一种新的损失函数,它提高了深度学习特征的判别能力。实验表明,我们的模型在白细胞图像分类方面具有良好的性能,准确率达到了91.7%。图形摘要:所提出方法的概述,我们使用深度卷积生成对抗网络(DC-GAN)生成新样本,将其作为ResNet的补充输入,采用迁移学习方法初始化网络参数,将DC-GAN的输出和参数应用于最终分类网络。特别地,我们引入了一种用于分类的改进损失函数,以增加类间差异并减小类内差异。