Semi-Supervised Domain Adaptation Using Target-Oriented Domain Augmentation for 3D Object Detection

• URL: http://arxiv.org/abs/2406.11313v1
• Date: Mon, 17 Jun 2024 08:19:40 GMT
• Title: Semi-Supervised Domain Adaptation Using Target-Oriented Domain Augmentation for 3D Object Detection
• Authors: Yecheol Kim, Junho Lee, Changsoo Park, Hyoung won Kim, Inho Lim, Christopher Chang, Jun Won Choi,
• Abstract summary: 3D object detection is crucial for applications like autonomous driving and robotics. Semi-Supervised Domain Adaptation (SSDA) aims to mitigate these challenges by transferring knowledge from a source domain to a target domain. This paper presents a new SSDA method referred to as Target-Oriented Augmentation Domain (TODA) specifically tailored for LiDAR-based 3D object detection.
• Score: 13.873877368139667
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: 3D object detection is crucial for applications like autonomous driving and robotics. However, in real-world environments, variations in sensor data distribution due to sensor upgrades, weather changes, and geographic differences can adversely affect detection performance. Semi-Supervised Domain Adaptation (SSDA) aims to mitigate these challenges by transferring knowledge from a source domain, abundant in labeled data, to a target domain where labels are scarce. This paper presents a new SSDA method referred to as Target-Oriented Domain Augmentation (TODA) specifically tailored for LiDAR-based 3D object detection. TODA efficiently utilizes all available data, including labeled data in the source domain, and both labeled data and unlabeled data in the target domain to enhance domain adaptation performance. TODA consists of two stages: TargetMix and AdvMix. TargetMix employs mixing augmentation accounting for LiDAR sensor characteristics to facilitate feature alignment between the source-domain and target-domain. AdvMix applies point-wise adversarial augmentation with mixing augmentation, which perturbs the unlabeled data to align the features within both labeled and unlabeled data in the target domain. Our experiments conducted on the challenging domain adaptation tasks demonstrate that TODA outperforms existing domain adaptation techniques designed for 3D object detection by significant margins. The code is available at: https://github.com/rasd3/TODA.

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