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Object detection fail in the room. #2627

Answered by shmpwk
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The solution is to crop the input pointcloud excluding the room ceiling here.

Centerpoint model uses a PointPillars-based network to inference.
The pillar unit depends on the top pointcloud including room ceiling, which bothers the detection.
See japanese reference and PointPillars paper.

Apollo model is bird eye view based and the ceiling pointcloud bothers the detection.
https://github.com/ApolloAuto/apollo/blob/master/docs/specs/3d_obstacle_perception.md

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shmpwk
May 26, 2022
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component:perception Advanced sensor data processing and environment understanding.
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