Question regarding CBGS sampling
pangsu0613 opened this issue · 0 comments
pangsu0613 commented
Hello! This is a wonderful work! Thank you for sharing! I have a simple question regarding the CBGS. In the original CBGS, there are mainly two technologies, one is duplicate sampling to alleviate the class imbalance, another is ground truth data augmentation through random adding ground truth from other frames. Just want to confirm, for DETR3D, only duplicate sampling is applied in the CBGS, am I right? Because DETR3D is a image-based network, adding new targets is not as easy as in point clouds.