Papers › Pseudo-LiDAR++: Accurate Depth for 3D Object Detection in Autonomous Driving

Pseudo-LiDAR++: Accurate Depth for 3D Object Detection in Autonomous Driving

14 Jun 2019ICLR 2020 1arXiv:1906.06310archive 2025-07-28

Yurong You, Yan Wang, Wei-Lun Chao, Divyansh Garg, Geoff Pleiss, Bharath Hariharan, Mark Campbell, Kilian Q. Weinberger

Detecting objects such as cars and pedestrians in 3D plays an indispensable role in autonomous driving. Existing approaches largely rely on expensive LiDAR sensors for accurate depth information. While recently pseudo-LiDAR has been introduced as a promising alternative, at a much lower cost based solely on stereo images, there is still a notable performance gap. In this paper we provide substantial advances to the pseudo-LiDAR framework through improvements in stereo depth estimation. Concretely, we adapt the stereo network architecture and loss function to be more aligned with accurate depth estimation of faraway objects --- currently the primary weakness of pseudo-LiDAR. Further, we explore the idea to leverage cheaper but extremely sparse LiDAR sensors, which alone provide insufficient information for 3D detection, to de-bias our depth estimation. We propose a depth-propagation algorithm, guided by the initial depth estimates, to diffuse these few exact measurements across the entire depth map. We show on the KITTI object detection benchmark that our combined approach yields substantial improvements in depth estimation and stereo-based 3D object detection --- outperforming the previous state-of-the-art detection accuracy for faraway objects by 40%. Our code is available at https://github.com/mileyan/Pseudo_Lidar_V2.

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default_loader mileyan/Pseudo_Lidar_V2/src/dataloader/KITTILoader_dataset3d.py official repository ran MIT (permissive) · ac269a0e4b8d946e · report
is_image_file mileyan/Pseudo_Lidar_V2/src/dataloader/KITTILoader3D.py official repository ran · violated contract MIT (permissive) · ab4109634b75ef8b · report
dataloader mileyan/Pseudo_Lidar_V2/src/dataloader/KITTILoader3D.py official repository unverified MIT (permissive) · a3afe1d264a83296 · report
depth2ptc mileyan/Pseudo_Lidar_V2/gdc/depthmap2ptc.py official repository unverified MIT (permissive) · 5f6f750ca5ca52c6 · report
disparity_loader mileyan/Pseudo_Lidar_V2/src/dataloader/KITTILoader_dataset3d.py official repository unverified MIT (permissive) · 8d9f5f6ce951aa15 · report
filter_height mileyan/Pseudo_Lidar_V2/gdc/depthmap2ptc.py official repository unverified MIT (permissive) · 99d5136a35c630cc · report
filter_mask mileyan/Pseudo_Lidar_V2/gdc/gdc.py official repository unverified MIT (permissive) · e1d7378c4e2e8fce · report
filter_theta_mask mileyan/Pseudo_Lidar_V2/gdc/gdc.py official repository unverified MIT (permissive) · c2ce62aec738dd30 · report
get_depth_map mileyan/Pseudo_Lidar_V2/gdc/ptc2depthmap.py official repository unverified MIT (permissive) · bdbf99917155442d · report
project_disp_to_depth mileyan/Pseudo_Lidar_V2/src/preprocess/generate_lidar_from_depth.py official repository unverified MIT (permissive) · 33b00ba26319a75f · report
pto_ang_map mileyan/Pseudo_Lidar_V2/gdc/sparsify.py official repository unverified MIT (permissive) · e4da94c7d28b4708 · report
read_calib_file mileyan/Pseudo_Lidar_V2/src/dataloader/KITTILoader_dataset3d_knn.py official repository unverified MIT (permissive) · bf109c04c389ad3f · report
setup_logger mileyan/Pseudo_Lidar_V2/src/logger.py official repository unverified MIT (permissive) · aeb4136902fecf2a · report
subsample_mask_by_grid mileyan/Pseudo_Lidar_V2/gdc/gdc.py official repository unverified MIT (permissive) · 0bb6694313ca5db7 · report

Tasks

3D Object Detection3D Object Detection From Stereo ImagesAutonomous DrivingDepth EstimationObject DetectionStereo Depth Estimationobject-detection

Results from the paper archive 2025-07-28

TaskDatasetModelMetricValueRank at snapshotLeaderboardReport
3D Object Detection From Stereo Images KITTI Cars Moderate Pseudo-LiDAR++ AP75 42.43 #7 of 12 Archive leaderboard report

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