feat(perception_utils): enable tracker to track smaller object by adapting min_union_area

[YoshiRi]

Signed-off-by: Yoshi Ri yoshi.ri@tier4.jp

Description

Currently get2dIoU function return zero iou when union_area is below $0.01 m^2$.
This sometimes prevent tracking thin objects such as sign pole.

This PR makes the min_union_area threshold adjustable.

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[codecov]

Codecov Report

Base: 10.50% // Head: 10.51% // Increases project coverage by +0.01% 🎉

Coverage data is based on head (b77df7e) compared to base (2572398).
Patch coverage: 20.00% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2303      +/-   ##
==========================================
+ Coverage   10.50%   10.51%   +0.01%     
==========================================
  Files        1248     1248              
  Lines       90626    90618       -8     
  Branches    20728    20715      -13     
==========================================
+ Hits         9517     9528      +11     
+ Misses      71016    70994      -22     
- Partials    10093    10096       +3     

Flag	Coverage Δ		*Carryforward flag
differential	6.21% <16.66%> (?)
total	10.48% <25.00%> (+<0.01%)	⬆️	Carriedforward from fdc77f0

*This pull request uses carry forward flags. Click here to find out more.

Impacted Files	Coverage Δ
..._tracker/src/data_association/data_association.cpp	0.00% <0.00%> (ø)
...i_object_tracker/src/multi_object_tracker_core.cpp	0.00% <0.00%> (ø)
...ation_merger/data_association/data_association.cpp	0.00% <0.00%> (ø)
...eption_utils/include/perception_utils/matching.hpp	69.49% <66.66%> (+6.44%)	⬆️
...planning_evaluator/src/planning_evaluator_node.cpp	37.11% <0.00%> (-1.04%)	⬇️
...erception/traffic_light_classifier/src/nodelet.cpp	0.00% <0.00%> (ø)
...est_node/include/fake_test_node/fake_test_node.hpp	39.13% <0.00%> (ø)
...c/pure_pursuit/pure_pursuit_lateral_controller.cpp	0.00% <0.00%> (ø)
... and 3 more

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[yukke42]

LGTM

[scepter914]

LGTM

[yukkysaito]

LGTM