选自 | heartbeat 作者 | Derrick Mwiti
编译 | 机器之心 参与 | 陈萍
CVPR 2020 会议上,有哪些目标检测论文值得关注?
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A Hierarchical Graph Network for 3D Object Detection on Point Clouds
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HVNet: Hybrid Voxel Network for LiDAR Based 3D Object Detection
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Point-GNN: Graph Neural Network for 3D Object Detection in a Point Cloud
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Camouflaged Object Detection
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Few-Shot Object Detection with Attention-RPN and Multi-Relation Detector
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D2Det: Towards High-Quality Object Detection and Instance Segmentation
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基于 GConv 的 U 形网络(GU-net);
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候选框生成器;
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候选框推理模块(ProRe Module):使用全连接图对候选框进行推理。
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将 VoteNet 中的 PointNet++ 换成特征捕捉能力更强的 GCN;
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为 up-sample 的多层中的每一层都接上 voting 模块,整合多个尺度的特征;
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在 proposal 之间也使用 GCN 来增强特征的学习能力。
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体素化:将点云指定给二维体素网格;
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体素特征提取:计算网格相关的点级特征,然后将其输入到 PointNet 风格特征编码器;
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投影:将点级特征聚合为体素级特征,并投影到其原始网格。这就形成了一个伪图像特征图。
项目地址:
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图构建:使用体素降采样点云进行图构建;
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GNN 目标检测(T 次迭代);
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边界框合并和评分。
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搜索模块(SM),用于搜索伪装的物体;
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识别模块(IM),用于检测该物体。
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