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相关论文: DAP-MAE: Domain-Adaptive Point Cloud Masked Autoen…

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Masked autoencoders (MAE) have recently succeeded in self-supervised vision representation learning. Previous work mainly applied custom-designed (e.g., random, block-wise) masking or teacher (e.g., CLIP)-guided masking and targets.…

计算机视觉与模式识别 · 计算机科学 2024-12-24 Shentong Mo

We present Point-BERT, a new paradigm for learning Transformers to generalize the concept of BERT to 3D point cloud. Inspired by BERT, we devise a Masked Point Modeling (MPM) task to pre-train point cloud Transformers. Specifically, we…

计算机视觉与模式识别 · 计算机科学 2022-06-07 Xumin Yu , Lulu Tang , Yongming Rao , Tiejun Huang , Jie Zhou , Jiwen Lu

We investigated the adaptation and performance of Masked Autoencoders (MAEs) with Vision Transformer (ViT) architectures for self-supervised representation learning on one-dimensional (1D) ultrasound signals. Although MAEs have demonstrated…

机器学习 · 计算机科学 2025-08-29 Immanuel Roßteutscher , Klaus S. Drese , Thorsten Uphues

To apply transformer-based models to point cloud understanding, many previous works modify the architecture of transformers by using, e.g., local attention and down-sampling. Although they have achieved promising results, earlier works on…

计算机视觉与模式识别 · 计算机科学 2023-08-08 Lanxiao Li , Michael Heizmann

As two fundamental representation modalities of 3D objects, 3D point clouds and multi-view 2D images record shape information from different domains of geometric structures and visual appearances. In the current deep learning era,…

计算机视觉与模式识别 · 计算机科学 2023-06-16 Qijian Zhang , Junhui Hou , Yue Qian

Existing deep learning-based change detection methods try to elaborately design complicated neural networks with powerful feature representations, but ignore the universal domain shift induced by time-varying land cover changes, including…

计算机视觉与模式识别 · 计算机科学 2022-08-09 Jia Liu , Wenjie Xuan , Yuhang Gan , Juhua Liu , Bo Du

The manual annotation for large-scale point clouds is still tedious and unavailable for many harsh real-world tasks. Self-supervised learning, which is used on raw and unlabeled data to pre-train deep neural networks, is a promising…

计算机视觉与模式识别 · 计算机科学 2022-10-31 Junsheng Zhou , Xin Wen , Baorui Ma , Yu-Shen Liu , Yue Gao , Yi Fang , Zhizhong Han

Current Facial Action Unit (FAU) detection methods generally encounter difficulties due to the scarcity of labeled video training data and the limited number of training face IDs, which renders the trained feature extractor insufficient…

计算机视觉与模式识别 · 计算机科学 2024-07-17 Qiaoqiao Jin , Rui Shi , Yishun Dou , Bingbing Ni

Semantic segmentation of crops and weeds is crucial for site-specific farm management; however, most existing methods depend on labor intensive pixel-level annotations. A further challenge arises when models trained on one field (source…

计算机视觉与模式识别 · 计算机科学 2025-06-02 Numair Nadeem , Muhammad Hamza Asad , Saeed Anwar , Abdul Bais

Significant inter-individual variability limits the generalization of EEG-based emotion recognition under cross-domain settings. We address two core challenges in multi-source adaptation: (1) dynamically modeling distributional…

机器学习 · 计算机科学 2025-10-21 Fo Hu , Can Wang , Qinxu Zheng , Xusheng Yang , Bin Zhou , Gang Li , Yu Sun , Wen-an Zhang

In real-world visual recognition problems, the assumption that the training data (source domain) and test data (target domain) are sampled from the same distribution is often violated. This is known as the domain adaptation problem. In this…

计算机视觉与模式识别 · 计算机科学 2018-04-17 Hongyu Xu , Jingjing Zheng , Azadeh Alavi , Rama Chellappa

Masked Autoencoders (MAE) based on a reconstruction task have risen to be a promising paradigm for self-supervised learning (SSL) and achieve state-of-the-art performance across different benchmark datasets. However, despite its impressive…

机器学习 · 计算机科学 2023-03-28 Qi Zhang , Yifei Wang , Yisen Wang

We are interested in learning scalable agents for reinforcement learning that can learn from large-scale, diverse sequential data similar to current large vision and language models. To this end, this paper presents masked decision…

机器学习 · 计算机科学 2023-05-30 Fangchen Liu , Hao Liu , Aditya Grover , Pieter Abbeel

Cross-modal Unsupervised Domain Adaptation (UDA) aims to exploit the complementarity of 2D-3D data to overcome the lack of annotation in a new domain. However, UDA methods rely on access to the target domain during training, meaning the…

计算机视觉与模式识别 · 计算机科学 2023-08-15 Miaoyu Li , Yachao Zhang , Xu MA , Yanyun Qu , Yun Fu

3D perception in LiDAR point clouds is crucial for a self-driving vehicle to properly act in 3D environment. However, manually labeling point clouds is hard and costly. There has been a growing interest in self-supervised pre-training of 3D…

计算机视觉与模式识别 · 计算机科学 2024-09-12 Mu Cai , Chenxu Luo , Yong Jae Lee , Xiaodong Yang

Pre-training has become a standard paradigm in many computer vision tasks. However, most of the methods are generally designed on the RGB image domain. Due to the discrepancy between the two-dimensional image plane and the three-dimensional…

计算机视觉与模式识别 · 计算机科学 2022-01-19 Zhenyu Li , Zehui Chen , Ang Li , Liangji Fang , Qinhong Jiang , Xianming Liu , Junjun Jiang , Bolei Zhou , Hang Zhao

3D object detection is a critical task in autonomous driving. Recently multi-modal fusion-based 3D object detection methods, which combine the complementary advantages of LiDAR and camera, have shown great performance improvements over…

计算机视觉与模式识别 · 计算机科学 2022-11-16 Hao Liu , Zhuoran Xu , Dan Wang , Baofeng Zhang , Guan Wang , Bo Dong , Xin Wen , Xinyu Xu

Three-dimensional (3D) object recognition is crucial for intelligent autonomous agents such as autonomous vehicles and robots alike to operate effectively in unstructured environments. Most state-of-art approaches rely on relatively dense…

机器人学 · 计算机科学 2022-05-10 Prajval Kumar Murali , Cong Wang , Ravinder Dahiya , Mohsen Kaboli

Masked autoencoders (MAEs) have displayed significant potential in the classification and semantic segmentation of medical images in the last year. Due to the high similarity of human tissues, even slight changes in medical images may…

计算机视觉与模式识别 · 计算机科学 2023-05-11 Jiawei Mao , Shujian Guo , Yuanqi Chang , Xuesong Yin , Binling Nie

Deep neural networks have achieved promising performance in supervised point cloud applications, but manual annotation is extremely expensive and time-consuming in supervised learning schemes. Unsupervised domain adaptation (UDA) addresses…

计算机视觉与模式识别 · 计算机科学 2021-04-13 Xiaoyuan Luo , Shaolei Liu , Kexue Fu , Manning Wang , Zhijian Song