[Fix] Fix indoor det visualization

[sunjiahao1999]

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Motivation

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Modification

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Checklist

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[codecov]

Codecov Report

Patch coverage: 23.07% and project coverage change: -0.02 ⚠️

Comparison is base (12e2b7c) 46.79% compared to head (75d8873) 46.78%.

❗ Current head 75d8873 differs from pull request most recent head f518120. Consider uploading reports for the commit f518120 to get more accurate results

Additional details and impacted files

@@             Coverage Diff             @@
##           dev-1.x    #2625      +/-   ##
===========================================
- Coverage    46.79%   46.78%   -0.02%     
===========================================
  Files          277      277              
  Lines        23472    23480       +8     
  Branches      3659     3660       +1     
===========================================
+ Hits         10983    10984       +1     
- Misses       11793    11802       +9     
+ Partials       696      694       -2     

Flag	Coverage Δ
unittests	46.78% <23.07%> (-0.02%)	⬇️

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

Impacted Files	Coverage Δ
mmdet3d/datasets/transforms/formating.py	58.33% <ø> (ø)
mmdet3d/visualization/local_visualizer.py	25.94% <9.09%> (-0.41%)	⬇️
mmdet3d/__init__.py	100.00% <100.00%> (ø)
mmdet3d/engine/hooks/visualization_hook.py	50.98% <100.00%> (+0.48%)	⬆️

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