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坐标系转换问题请求 #10

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@pupu-chenyanyan

作者大大您好, 我想请教您一下,预测的时候curr_query_pos是否为未来点(例T+1 时刻的点),以当前时刻T的lidar坐标系为参考(express in ego_t frame)?

而每一个Occ GT,都是在各自时刻的ego坐标系下的,因此进行监督的时候,需要将每个点都转到T时刻的坐标系中吗? 所以在监督时候,对于T+1时刻进入BEV,warp后超出T时刻BEV范围的点,进行丢弃?

但是在loss_future函数中, gt_points, gt_labels = self.get_sparse_voxels(voxel_sem) --似乎并没有对voxel_sem 进行时序warp,是否这表示future voxel_sem也是表达在ego_t frame,已经经过了自车运动补偿 ?

非常感谢!
祝好!

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