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gigo-team / bev_lane_det

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Confusing about variables in openlane data_loader #16

Open usherbob opened 1 year ago

usherbob commented 1 year ago

Hi,

I'm struggling in understanding the preprocess of openlane dataloader. Would you please give some illustrations of my questions?

  1. the meaning of cam_w_extrinsics, which seems like the extrinsic params of the camera;
  2. the meaning of maxtrix_camera2camera_w ;
  3. difference between cam_extrinsics and cam_extrinsics_persformer;
  4. why line 176 uses cam_w_extrinsics once and line 178 also uses cam_extrinsics ?

image

bigliuyq commented 1 year ago

+1

usherbob commented 1 year ago

+1

Maybe you can first refer to https://github.com/OpenDriveLab/PersFormer_3DLane/issues/4.

I'm still kind of confused now.

cv-lab-x commented 1 year ago

+1 @qinjian623

EnternalTwinkle commented 1 year ago

@usherbob Can you share the source code? Thanks，1017094591@qq.com