some failure cases (not change params or thresholds, using defaults)

[lucasjinreal]

Especially the last picuture, I believed that car should more than 75% probabilities.

[youngwanLEE]

CenterMask has a trend to have lower box confidences due to maskiou_head.

However, lower confidence scores do not mean lower detection results.

When you lower the threshold, you can get the detection boxes.

[lucasjinreal]

May I ask why maskiou_head trends to get lower confidence?

[I3aer]

Probably, it is a trade-off resulting from mask and detection losses. You can check if FCOS can detect those missed detections. If it can, it is better to train the CenterMask with a frozen FCOS