From Dataset to Real-world: General 3D Object Detection via Generalized Cross-domain Few-shot Learning

• URL: http://arxiv.org/abs/2503.06282v1
• Date: Sat, 08 Mar 2025 17:05:21 GMT
• Title: From Dataset to Real-world: General 3D Object Detection via Generalized Cross-domain Few-shot Learning
• Authors: Shuangzhi Li, Junlong Shen, Lei Ma, Xingyu Li,
• Abstract summary: We introduce the first generalized cross-domain few-shot (GCFS) task in 3D object detection.<n>Our solution integrates multi-modal fusion and contrastive-enhanced prototype learning within one framework.<n>To effectively capture domain-specific representations for each class from limited target data, we propose a contrastive-enhanced prototype learning.
• Score: 13.282416396765392
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: LiDAR-based 3D object detection datasets have been pivotal for autonomous driving, yet they cover a limited range of objects, restricting the model's generalization across diverse deployment environments. To address this, we introduce the first generalized cross-domain few-shot (GCFS) task in 3D object detection, which focuses on adapting a source-pretrained model for high performance on both common and novel classes in a target domain with few-shot samples. Our solution integrates multi-modal fusion and contrastive-enhanced prototype learning within one framework, holistically overcoming challenges related to data scarcity and domain adaptation in the GCFS setting. The multi-modal fusion module utilizes 2D vision-language models to extract rich, open-set semantic knowledge. To address biases in point distributions across varying structural complexities, we particularly introduce a physically-aware box searching strategy that leverages laser imaging principles to generate high-quality 3D box proposals from 2D insights, enhancing object recall. To effectively capture domain-specific representations for each class from limited target data, we further propose a contrastive-enhanced prototype learning, which strengthens the model's adaptability. We evaluate our approach with three GCFS benchmark settings, and extensive experiments demonstrate the effectiveness of our solution for GCFS tasks. The code will be publicly available.

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