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chenhang98 / BPR

code for `Look Closer to Segment Better: Boundary Patch Refinement for Instance Segmentation`
Apache License 2.0
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about the table 1 #11

Closed Betty-J closed 2 years ago

Betty-J commented 3 years ago

Hi thanks for your work, a little question about table 1, you said "∞ means all error pixels are corrected. ", I can't understand "all error pixels are corrected" but you get AP 70.4, why? how to definition "error pixels for boundaries"， could you explain more, thanks a lot!

chenhang98 commented 2 years ago

We first match DT and GT masks according to IoU, and then replace pixels within a certain distance (denoted by d) around the boundary of DT with the value (0 or 1) corresponding to GT. In this process, missed instances and classification errors are not corrected. So even if d is infinity, AP is not 100.