Skip to content

navhard_two_stage synthetic scene pickles: 3D annotation box z field equals wrapped heading #200

Description

@ParkJunBeom27

Hi, I have a question about the Stage-2 synthetic annotations in navhard_two_stage.

When projecting the 3D boxes from synthetic_scene_pickles onto camera images with the official NAVSIM camera visualization path, many boxes appear vertically shifted or misaligned, while BEV-style visualization looks reasonable.

I checked the box fields and found that, in the sampled Stage-2 synthetic scenes, the z field appears to match the wrapped heading value. Since the documented box format seems to be:

[x, y, z, length, width, height, heading]

I wanted to ask whether the z field in Stage-2 synthetic pickles is intended to be valid for camera 3D bbox projection, or whether these annotations are only intended for BEV / planar evaluation.

For reference, in my sample:

  • Stage-2 synthetic boxes: 2834/2834 had z == wrapped heading
  • corresponding raw navsim_logs/test boxes: 0/3708
  • Stage-1 raw boxes from the same scene filter: 0/15891

Could you confirm the intended use of Stage-2 synthetic annotations for camera projection?

Metadata

Metadata

Assignees

No one assigned

    Labels

    No labels
    No labels

    Type

    No type

    Fields

    No fields configured for issues without a type.

    Projects

    No projects

    Milestone

    No milestone

    Relationships

    None yet

    Development

    No branches or pull requests

    Issue actions