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How to learn discriminative video representation from unlabeled videos is challenging but crucial for video analysis. The latest attempts seek to learn a representation model by predicting the appearance contents in the masked regions.…

Computer Vision and Pattern Recognition · Computer Science 2023-03-24 Xinyu Sun , Peihao Chen , Liangwei Chen , Changhao Li , Thomas H. Li , Mingkui Tan , Chuang Gan

Self-supervised learning has shown great promise due to its capability to train deep learning MRI reconstruction methods without fully-sampled data. Current self-supervised learning methods for physics-guided reconstruction networks split…

Image and Video Processing · Electrical Eng. & Systems 2022-07-19 Burhaneddin Yaman , Hongyi Gu , Seyed Amir Hossein Hosseini , Omer Burak Demirel , Steen Moeller , Jutta Ellermann , Kâmil Uğurbil , Mehmet Akçakaya

Foundation models have transformed vision and language by learning general-purpose representations from large-scale unlabeled data, yet 3D medical imaging lacks analogous approaches. Existing self-supervised methods rely on low-level…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Yunhe Gao , Yabin Zhang , Chong Wang , Jiaming Liu , Maya Varma , Jean-Benoit Delbrouck , Akshay Chaudhari , Curtis Langlotz

The task of detecting whether a person wears a face mask from speech is useful in modelling speech in forensic investigations, communication between surgeons or people protecting themselves against infectious diseases such as COVID-19. In…

Audio and Speech Processing · Electrical Eng. & Systems 2020-07-28 Nicolae-Cătălin Ristea , Radu Tudor Ionescu

Intracranial recordings have opened a unique opportunity to simultaneously measure activity across multiregional networks in the human brain. Recent works have focused on developing transformer-based neurofoundation models of such…

Machine Learning · Computer Science 2025-12-16 Lucine L. Oganesian , Saba Hashemi , Maryam M. Shanechi

Channel pruning, which seeks to reduce the model size by removing redundant channels, is a popular solution for deep networks compression. Existing channel pruning methods usually conduct layer-wise channel selection by directly minimizing…

Computer Vision and Pattern Recognition · Computer Science 2019-05-14 Yiming Hu , Siyang Sun , Jianquan Li , Jiagang Zhu , Xingang Wang , Qingyi Gu

Due to the scarcity of labeled data, self-supervised learning (SSL) has gained much attention in 3D medical image segmentation, by extracting semantic representations from unlabeled data. Among SSL strategies, Masked image modeling (MIM)…

Computer Vision and Pattern Recognition · Computer Science 2024-07-18 Yuheng Li , Tianyu Luan , Yizhou Wu , Shaoyan Pan , Yenho Chen , Xiaofeng Yang

For unsupervised pretraining, mask-reconstruction pretraining (MRP) approaches, e.g. MAE and data2vec, randomly mask input patches and then reconstruct the pixels or semantic features of these masked patches via an auto-encoder. Then for a…

Machine Learning · Computer Science 2023-02-14 Jiachun Pan , Pan Zhou , Shuicheng Yan

We frame the task of predicting a semantic labeling as a sparse reconstruction procedure that applies a target-specific learned transfer function to a generic deep sparse code representation of an image. This strategy partitions training…

Computer Vision and Pattern Recognition · Computer Science 2014-10-17 Michael Maire , Stella X. Yu , Pietro Perona

Self-supervised learning has transformed 2D computer vision by enabling models trained on large, unannotated datasets to provide versatile off-the-shelf features that perform similarly to models trained with labels. However, in 3D scene…

Computer Vision and Pattern Recognition · Computer Science 2025-04-10 Pedro Hermosilla , Christian Stippel , Leon Sick

Addressing missing modalities presents a critical challenge in multimodal learning. Current approaches focus on developing models that can handle modality-incomplete inputs during inference, assuming that the full set of modalities are…

Computer Vision and Pattern Recognition · Computer Science 2024-06-05 Yunpeng Zhao , Cheng Chen , Qing You Pang , Quanzheng Li , Carol Tang , Beng-Ti Ang , Yueming Jin

Wearable cameras are becoming more and more popular in several applications, increasing the interest of the research community in developing approaches for recognizing actions from the first-person point of view. An open challenge in…

Computer Vision and Pattern Recognition · Computer Science 2020-12-08 Mirco Planamente , Andrea Bottino , Barbara Caputo

Prompt tuning and adapter tuning have shown great potential in transferring pre-trained vision-language models (VLMs) to various downstream tasks. In this work, we design a new type of tuning method, termed as regularized mask tuning, which…

Computer Vision and Pattern Recognition · Computer Science 2023-08-08 Kecheng Zheng , Wei Wu , Ruili Feng , Kai Zhu , Jiawei Liu , Deli Zhao , Zheng-Jun Zha , Wei Chen , Yujun Shen

Hyperspectral images (HSI) not only have a broad macroscopic field of view but also contain rich spectral information, and the types of surface objects can be identified through spectral information, which is one of the main applications in…

Computer Vision and Pattern Recognition · Computer Science 2022-03-22 Sen Jia , Yifan Wang

In recent studies on MRI reconstruction, advances have shown significant promise for further accelerating the MRI acquisition. Most state-of-the-art methods require a large amount of fully-sampled data to optimise reconstruction models,…

Image and Video Processing · Electrical Eng. & Systems 2023-12-04 Junwei Yang , Pietro Liò

Self-supervised learning (SSL) methods have become a dominant paradigm for creating general purpose models whose capabilities can be transferred to downstream supervised learning tasks. However, most such methods rely on vast amounts of…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Lakshay Sharma , Alex Marin

The presence of undesired background areas associated with potential noise and unknown spectral characteristics degrades the performance of hyperspectral data processing. Masking out unwanted regions is key to addressing this issue.…

Computer Vision and Pattern Recognition · Computer Science 2023-11-07 Elias Arbash , Andréa de Lima Ribeiro , Sam Thiele , Nina Gnann , Behnood Rasti , Margret Fuchs , Pedram Ghamisi , Richard Gloaguen

Fully supervised skeleton-based action recognition has achieved great progress with the blooming of deep learning techniques. However, these methods require sufficient labeled data which is not easy to obtain. In contrast, self-supervised…

Computer Vision and Pattern Recognition · Computer Science 2023-05-12 Wenhan Wu , Yilei Hua , Ce Zheng , Shiqian Wu , Chen Chen , Aidong Lu

Foundation models have recently gained tremendous popularity in medical image analysis. State-of-the-art methods leverage either paired image-text data via vision-language pre-training or unpaired image data via self-supervised pre-training…

Computer Vision and Pattern Recognition · Computer Science 2025-07-24 Lei Zhu , Jun Zhou , Rick Siow Mong Goh , Yong Liu

Human perception and understanding is a major domain of computer vision which, like many other vision subdomains recently, stands to gain from the use of large models pre-trained on large datasets. We hypothesize that the most common…

Computer Vision and Pattern Recognition · Computer Science 2024-04-19 Matthieu Armando , Salma Galaaoui , Fabien Baradel , Thomas Lucas , Vincent Leroy , Romain Brégier , Philippe Weinzaepfel , Grégory Rogez