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Vehicle target recognition algorithm for UAV image based on DRFP
Authors
刘云鹏
刘天赐
+3 more
张钟毓
林智远
王思奎
Publication date
1 January 2019
Publisher
Abstract
针对无人机在复杂战场环境的侦察任务中,目标在视场中尺寸过小、边缘和纹理信息较少所造成的目标识别难题,提出一种新的基于深度学习的单阶段目标识别网络DRFP。DRFP网络以残差结构为骨架,使用特征金字塔结构实现特征融合;其次在损失函数中使用添加了调整因子的交叉熵函数,实现对难样本的重点关注、训练;最后使用高斯型非极大值抑制算法(G-NMS),提高目标密集区检出率。使用无人机航拍图像数据集进行地面车辆目标识别的实验结果表明:所提出的单阶段模型的精度(mAP值)为83.16%,达到了两阶段网络模型的水平;同时,识别速度符合实时性的要求。</p
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Last time updated on 16/09/2020