Fix paa

[jshilong]

resolves #4021, resolves #4372

[codecov]

Codecov Report

Merging #4391 (c97ad21) into master (9cb5543) will decrease coverage by 0.10%.
The diff coverage is 85.71%.

@@            Coverage Diff             @@
##           master    #4391      +/-   ##
==========================================
- Coverage   61.94%   61.84%   -0.11%     
==========================================
  Files         239      239              
  Lines       18267    18274       +7     
  Branches     3060     3061       +1     
==========================================
- Hits        11315    11301      -14     
- Misses       6402     6424      +22     
+ Partials      550      549       -1     

Flag	Coverage Δ
unittests	61.80% <85.71%> (-0.10%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
mmdet/models/dense_heads/paa_head.py	89.11% <85.71%> (+0.13%)	⬆️
mmdet/models/roi_heads/mask_scoring_roi_head.py	55.35% <0.00%> (-32.15%)	⬇️
mmdet/models/roi_heads/test_mixins.py	45.03% <0.00%> (-8.40%)	⬇️
mmdet/models/roi_heads/mask_heads/maskiou_head.py	94.62% <0.00%> (-5.38%)	⬇️
mmdet/models/roi_heads/mask_heads/fcn_mask_head.py	70.55% <0.00%> (-1.23%)	⬇️
mmdet/models/dense_heads/corner_head.py	74.45% <0.00%> (-0.41%)	⬇️
mmdet/models/dense_heads/cascade_rpn_head.py	28.07% <0.00%> (-0.20%)	⬇️
mmdet/models/dense_heads/yolact_head.py	87.78% <0.00%> (+3.40%)	⬆️
mmdet/models/detectors/yolact.py	88.88% <0.00%> (+12.96%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 9cb5543...1f0af57. Read the comment docs.