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ELiTe: Efficient Image-to-LiDAR Knowledge Transfer for Semantic Segmentation
May 8, 2024, 4:45 a.m. | Zhibo Zhang, Ximing Yang, Weizhong Zhang, Cheng Jin
cs.CV updates on arXiv.org arxiv.org
Abstract: Cross-modal knowledge transfer enhances point cloud representation learning in LiDAR semantic segmentation. Despite its potential, the \textit{weak teacher challenge} arises due to repetitive and non-diverse car camera images and sparse, inaccurate ground truth labels. To address this, we propose the Efficient Image-to-LiDAR Knowledge Transfer (ELiTe) paradigm. ELiTe introduces Patch-to-Point Multi-Stage Knowledge Distillation, transferring comprehensive knowledge from the Vision Foundation Model (VFM), extensively trained on diverse open-world images. This enables effective knowledge transfer to a lightweight …
abstract arxiv car challenge cloud cs.cv diverse image images knowledge labels lidar modal paradigm representation representation learning segmentation semantic transfer truth type
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