Question about pretraining and segmentation evaluation.

[volgachen]

Nice work! I have some questions about the details. Hope you can help.

1. Is the model trained from scratch or pretrained?
2. As the model has a fixed input size 448*448. How to perform segmentation evaluation on images with various aspect ratios? Pad it with constant or perform sliding inference?
3. Does the training loss mask ignored pixels out, as well as padded pixels?

[Zheng-Bicheng]

我有时间复现下，年底太忙了不好意思，真的抽不出时间。

[1314520gu]

请问解决了吗