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• W4312640109 abstract "Numerous advancements in deep learning can be attributed to the access to large-scale and well-annotated datasets. However, such a dataset is prohibitively expensive in 3D computer vision due to the substantial collection cost. To alleviate this issue, we propose a cost-effective method for automatically generating a large amount of 3D objects with annotations. In particular, we synthesize objects simply by assembling multiple random primitives. These objects are thus auto-annotated with part labels originating from primitives. This allows us to perform multi-task learning by combining the supervised segmentation with unsupervised reconstruction. Considering the large overhead of learning on the generated dataset, we further propose a dataset distillation strategy to remove redundant samples regarding a target dataset. We conduct extensive experiments for the downstream tasks of 3D object classification. The results indicate that our dataset, together with multitask pretraining on its annotations, achieves the best performance compared to other commonly used datasets. Further study suggests that our strategy can improve the model performance by pretraining and fine-tuning scheme, especially for the dataset with a small scale. In addition, pretraining with the proposed dataset distillation method can save 86% of the pretraining time with negligible performance degradation. We expect that our attempt provides a new data-centric perspective for training 3D deep models." @default.
• W4312640109 created "2023-01-05" @default.
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• W4312640109 date "2022-06-01" @default.
• W4312640109 modified "2023-09-29" @default.
• W4312640109 title "Primitive3D: 3D Object Dataset Synthesis from Randomly Assembled Primitives" @default.
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• W4312640109 doi "https://doi.org/10.1109/cvpr52688.2022.01548" @default.
• W4312640109 hasPublicationYear "2022" @default.
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