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• W4386245243 abstract "Current LiDAR-based 3D object detectors for autonomous driving are almost entirely trained on human-annotated data collected in specific geographical domains with specific sensor setups, making it difficult to adapt to a different domain. MODEST [1] is the first work to train 3D object detectors without any labels. Our work, HyperMODEST, proposes a universal method implemented on top of MODEST that can largely accelerate the self-training process and does not require tuning on a specific dataset. We filter intermediate pseudo-labels used for data augmentation with low confidence scores. On the nuScenes dataset, we observe a significant improvement of 1.6% in AP_BEV in 0-80m range at IoU=0.25 and an improvement of 1.7% in AP BEV in 0-80m range at IoU=0.5 while only using one-fifth of the training time in the original approach by MODEST [1]. On the Lyft dataset, we also observe an improvement over the baseline during the first round of iterative self-training. We explore the trade-off between high precision and high recall in the early stage of the self-training process by comparing our proposed method with two other score filtering methods: confidence score filtering for pseudo-labels with and without static label retention. The code and models of this work are available at https://github.com/TRAILab/HyperMODEST" @default.
• W4386245243 created "2023-08-30" @default.
• W4386245243 creator A5024242059 @default.
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• W4386245243 date "2023-06-01" @default.
• W4386245243 modified "2023-09-27" @default.
• W4386245243 title "HyperMODEST: Self-Supervised 3D Object Detection with Confidence Score Filtering" @default.
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• W4386245243 doi "https://doi.org/10.1109/crv60082.2023.00035" @default.
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