关于论文内容与代码对应部分的小问题

[Lg955]

请问文中公式（5）下面那段话 Only the bounding box with the highest score of each feature point is preserved in the refinement stage to increase the speed (box filtering, BF)……Finally, the reconstructed feature map is added to the original feature map to complete the whole process 是对应哪个.py文件的哪一部分代码啊