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1.算法描述 YOLOv4 的深层网络包括 SPP 模块、PANet 模块、YOLO Head 模块和部分卷积，其主要作用是加强目标特征提取并获取预测结果。SPP 模块的输入端和输出端各连接一个三次卷积块，每个三次卷积块包含 2 个 1×1 卷积和 1 个 3×3 卷积。 PANet 模块包含特征层...

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