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DAL将图像的backbone从res18增大到res34,发现指标上没有明显变化。 #343

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2anchao opened this issue May 8, 2024 · 1 comment

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@2anchao
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2anchao commented May 8, 2024

作者您好:
(1)我将DAL集成到了自己的训练框架(也是基于mmdet3d),实验发现在自己数据集上检测结果确实优于centerpoint很多,但是将图像的backbone从res18变为res34的时候发现指标没有明显增长。是不是图像特征其实不是很重要?
(2)从标注的思路上来考虑,回归分支的heading angle和box size是不是也可以考虑用融合特征,而不是单一的点云特征,中心位置只用点云特征。我在自己数据集上发现纯点云检测对于远一点的目标(>70m)的heading angle容易翻转180°,所以想用图像特征来弥补远处点云稀疏造成的heading angle不准确。

@HuangJunJie2017
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@2anchao 图像特征看起来很重要,但是在loss下降时网络并没有学到如何利用图像特征做更鲁棒的推理,如果要使用图像特征来解决cornercase,融合的策略需要更精细的设计

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