An Image-Based Deep Learning Approach with Improved DETR for Power Line Insulator Defect Detection

Figure 3

Overview of the treatment and control of the pre-training and fine-tuning of this model. The model was pre-trained on domain A and transferred to domain B. Rectangles colored with green represent weights obtained from pre-training of domain A, the purple ones represent weights adjusted in fine-tuning, the blue ones represent the layer of weights for classification which are clipped and retrained on domain B, and the yellow ones represents the linear layer weights for bounding box regression which are retrained on domain B.