" When wearing a mask, the recognition rate can reach about 95 percent, which can ensure that most people can be identified, " Huang said.

“戴口罩的识别率能达到95%左右，这保大多数人都能被识别。”

In the loss optimization part of the YOLOV7 model, Focal loss is introduced, to optimize the problematic training for banana pseudostems that are dense and sheltered, so as to improve the recognition rate of challenging samples.

在YOLOV7模型的失优化部分，引Focal失，优化密集且被遮挡的香蕉假茎训练中的问题，从而提高对困难样本的识别率。