论文标题
分析活细胞分割的U-NET神经网络的性能
Analysis of the performance of U-Net neural networks for the segmentation of living cells
论文作者
论文摘要
在单细胞跟踪和定量的背景下,显微镜图像的自动分析是一个挑战。这项工作的目标是研究深度学习的性能,用于分割显微镜图像,并改善了以前可用的跟踪单细胞的管道。深度学习技术(主要是卷积神经网络)已应用于细胞分割问题,并显示出很高的精度和快速性能。为了执行图像分割,为了实现具有U-NET体系结构的卷积神经网络的分析。此外,构建了不同的模型,以优化网络的大小和可学习参数的数量。然后,训练有素的网络用于管道中,该网络将陷阱定位在微流体设备中,在陷阱图像上执行图像分割,并评估荧光强度和单个单元格的面积。通过图像处理算法(例如质心估计和流域)进行实验过程中细胞的跟踪。最后,随着神经网络中的所有改进,对单个单元格进行了分段,并且在管道中启用了准实时图像分析,其中在4分钟内处理了6.20GB的数据。
The automated analysis of microscopy images is a challenge in the context of single-cell tracking and quantification. This work has as goals the study of the performance of deep learning for segmenting microscopy images and the improvement of the previously available pipeline for tracking single cells. Deep learning techniques, mainly convolutional neural networks, have been applied to cell segmentation problems and have shown high accuracy and fast performance. To perform the image segmentation, an analysis of hyperparameters was done in order to implement a convolutional neural network with U-Net architecture. Furthermore, different models were built in order to optimize the size of the network and the number of learnable parameters. The trained network is then used in the pipeline that localizes the traps in a microfluidic device, performs the image segmentation on trap images, and evaluates the fluorescence intensity and the area of single cells over time. The tracking of the cells during an experiment is performed by image processing algorithms, such as centroid estimation and watershed. Finally, with all improvements in the neural network to segment single cells and in the pipeline, quasi-real-time image analysis was enabled, where 6.20GB of data was processed in 4 minutes.