Earf-YOLO: An Efficient Attention Receptive Field Model for Recognizing Symbols of Zhuang Minority Patterns

Figure 6

The sliding window shows the additivity of convolution. There are four convolutional kernels of 3 × 3, 1 × 1, 1 × 3, and 3 × 1, respectively, sharing the sliding windows based on the additivity of convolution.