about distant target

[AWDawson]

If there are distant targets in the dataset that are visible in the images but are not included in the ground truth, this situation could harm model training. How can this issue be addressed?

[linxuewu]

Limit the perception range of the model to be consistent with the ground truth (GT) range to minimize the impact of GT missed detections. If the GT missed detections are severe, there's not much that can be done. You can try to reduce the classification loss weight for distant negative samples, although I haven't tried that myself.