Papers › A Dual-Cycled Cross-View Transformer Network for Unified Road Layout Estimation and 3D...

A Dual-Cycled Cross-View Transformer Network for Unified Road Layout Estimation and 3D Object Detection in the Bird's-Eye-View

19 Sep 2022arXiv:2209.08844archive 2025-07-28

Curie Kim, Ue-Hwan Kim

The bird's-eye-view (BEV) representation allows robust learning of multiple tasks for autonomous driving including road layout estimation and 3D object detection. However, contemporary methods for unified road layout estimation and 3D object detection rarely handle the class imbalance of the training dataset and multi-class learning to reduce the total number of networks required. To overcome these limitations, we propose a unified model for road layout estimation and 3D object detection inspired by the transformer architecture and the CycleGAN learning framework. The proposed model deals with the performance degradation due to the class imbalance of the dataset utilizing the focal loss and the proposed dual cycle loss. Moreover, we set up extensive learning scenarios to study the effect of multi-class learning for road layout estimation in various situations. To verify the effectiveness of the proposed model and the learning scheme, we conduct a thorough ablation study and a comparative study. The experiment results attest the effectiveness of our model; we achieve state-of-the-art performance in both the road layout estimation and 3D object detection tasks.

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Code

AutoCompSysLab/DCTNet officialmentioned on GitHubpytorch report

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Tasks

3D Object DetectionAutonomous DrivingMonocular Cross-View Road Scene Parsing(Road)Monocular Cross-View Road Scene Parsing(Vehicle)ObjectObject Detectionobject-detection

Results from the paper archive 2025-07-28

TaskDatasetModelMetricValueRank at snapshotLeaderboardReport
Monocular Cross-View Road Scene Parsing(Road) Argoverse DCTNet mAP 88.87% #1 of 2 Archive leaderboard report
Monocular Cross-View Road Scene Parsing(Road) Argoverse DCTNet mIOU 76.71% #1 of 2 Archive leaderboard report
Monocular Cross-View Road Scene Parsing(Road) Kitti Odometry DCTNet mAP 88.28% #1 of 2 Archive leaderboard report
Monocular Cross-View Road Scene Parsing(Road) Kitti Odometry DCTNet mIOU 77.15% #1 of 2 Archive leaderboard report
Monocular Cross-View Road Scene Parsing(Road) Kitti Raw DCTNet mAP 86.56% #1 of 2 Archive leaderboard report
Monocular Cross-View Road Scene Parsing(Road) Kitti Raw DCTNet mIoU 65.86% #1 of 2 Archive leaderboard report
Monocular Cross-View Road Scene Parsing(Vehicle) Argoverse DCTNet mAP 68.96% #1 of 2 Archive leaderboard report
Monocular Cross-View Road Scene Parsing(Vehicle) Argoverse DCTNet mIoU 48.04% #1 of 2 Archive leaderboard report
Monocular Cross-View Road Scene Parsing(Vehicle) KITTI2012 DCTNet mAP 58.89% #1 of 2 Archive leaderboard report
Monocular Cross-View Road Scene Parsing(Vehicle) KITTI2012 DCTNet mIoU 39.44% #1 of 2 Archive leaderboard report

Ranks are positions in the archive's leaderboards as they stood at the 2025-07-28 snapshot. Results published since then are not among these rows, so a rank here is not a current standing.

Methods

Batch NormalizationConvolutionCycle Consistency LossFocal LossGAN Least Squares LossInstance NormalizationPatchGANReLUResidual BlockResidual ConnectionSigmoid ActivationTanh Activation

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