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T-MAE: Temporal Masked Autoencoders for Point Cloud Representation Learning
March 22, 2024, 4:46 a.m. | Weijie Wei, Fatemeh Karimi Nejadasl, Theo Gevers, Martin R. Oswald
cs.CV updates on arXiv.org arxiv.org
Abstract: The scarcity of annotated data in LiDAR point cloud understanding hinders effective representation learning. Consequently, scholars have been actively investigating efficacious self-supervised pre-training paradigms. Nevertheless, temporal information, which is inherent in the LiDAR point cloud sequence, is consistently disregarded. To better utilize this property, we propose an effective pre-training strategy, namely Temporal Masked Auto-Encoders (T-MAE), which takes as input temporally adjacent frames and learns temporal dependency. A SiamWCA backbone, containing a Siamese encoder and a …
abstract annotated data arxiv autoencoders cloud cs.cv data information lidar pre-training property representation representation learning scholars temporal training type understanding
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