shaftData文件内为退役电机轴表面损伤图像，内部5个文件夹介绍说明见表下。采用CCD工业相机Basler acA3800-10gm对6206型退役深沟球轴承端面图像进行采集，使用软件Photoshop对图像中的损伤区域进行截取，使用多种数据增强方案对原始损伤数据进行扩充，以实现对实际损伤获取过程的模拟和防止模型训练过拟合的发生；同时使用LabelImg软件对对损伤的位置和类别进行标注，方便后续损伤目标检测网络的训练数据集。

The shaftData file contains surface damage images of decommissioned motor shafts. The internal 5 folders are described in the table below. CCD industrial camera Basler acA3800-10gm was used to collect the end image of 6206 retired deep groove ball bearing, the damaged area in the image was intercepted by software Photoshop, and the original damage data was expanded by various data enhancement schemes. To simulate the actual damage acquisition process and prevent overfitting of model training; At the same time, LabelImg software was used to mark the location and category of the damage, which was convenient for the subsequent damage target detection of the training data set of the network.