Papers › Transferring to Real-World Layouts: A Depth-aware Framework for Scene Adaptation

Transferring to Real-World Layouts: A Depth-aware Framework for Scene Adaptation

21 Nov 2023arXiv:2311.12682archive 2025-07-28

Mu Chen, Zhedong Zheng, Yi Yang

Scene segmentation via unsupervised domain adaptation (UDA) enables the transfer of knowledge acquired from source synthetic data to real-world target data, which largely reduces the need for manual pixel-level annotations in the target domain. To facilitate domain-invariant feature learning, existing methods typically mix data from both the source domain and target domain by simply copying and pasting the pixels. Such vanilla methods are usually sub-optimal since they do not take into account how well the mixed layouts correspond to real-world scenarios. Real-world scenarios are with an inherent layout. We observe that semantic categories, such as sidewalks, buildings, and sky, display relatively consistent depth distributions, and could be clearly distinguished in a depth map. Based on such observation, we propose a depth-aware framework to explicitly leverage depth estimation to mix the categories and facilitate the two complementary tasks, i.e., segmentation and depth learning in an end-to-end manner. In particular, the framework contains a Depth-guided Contextual Filter (DCF) forndata augmentation and a cross-task encoder for contextual learning. DCF simulates the real-world layouts, while the cross-task encoder further adaptively fuses the complementing features between two tasks. Besides, it is worth noting that several public datasets do not provide depth annotation. Therefore, we leverage the off-the-shelf depth estimation network to generate the pseudo depth. Extensive experiments show that our proposed methods, even with pseudo depth, achieve competitive performance on two widely-used bench-marks, i.e. 77.7 mIoU on GTA to Cityscapes and 69.3 mIoU on Synthia to Cityscapes.

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chen742/DCF officialmentioned on GitHubpytorch report
chen742/PiPa mentioned on GitHubpytorch report

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Tasks

Depth EstimationDomain AdaptationScene SegmentationSynthetic-to-Real TranslationUnsupervised Domain Adaptation

Results from the paper archive 2025-07-28

TaskDatasetModelMetricValueRank at snapshotLeaderboardReport
Domain Adaptation GTA5 to Cityscapes DCF mIoU 77.7 #2 of 28 Archive leaderboard report
Domain Adaptation SYNTHIA-to-Cityscapes DCF mIoU 69.3 #3 of 33 Archive leaderboard report
Synthetic-to-Real Translation GTAV-to-Cityscapes Labels DCF mIoU 77.7 #1 of 73 Archive leaderboard report
Synthetic-to-Real Translation SYNTHIA-to-Cityscapes DCF MIoU (13 classes) 75.9 #1 of 38 Archive leaderboard report
Synthetic-to-Real Translation SYNTHIA-to-Cityscapes DCF MIoU (16 classes) 69.3 #1 of 38 Archive leaderboard report
Unsupervised Domain Adaptation SYNTHIA-to-Cityscapes DCF MIoU (16 classes) 69.3 #1 of 23 Archive leaderboard report
Unsupervised Domain Adaptation SYNTHIA-to-Cityscapes DCF mIoU 69.3 #1 of 23 Archive leaderboard report
Unsupervised Domain Adaptation SYNTHIA-to-Cityscapes DCF mIoU (13 classes) 75.9 #1 of 23 Archive leaderboard report

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