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In the field of continual learning, models are designed to learn tasks one after the other. While most research has centered on supervised continual learning, there is a growing interest in unsupervised continual learning, which makes use…

机器学习 · 计算机科学 2024-07-18 Daniel Marczak , Sebastian Cygert , Tomasz Trzciński , Bartłomiej Twardowski

Unsupervised anomaly detection in brain imaging is challenging. In this paper, we propose self-supervised masked mesh learning for unsupervised anomaly detection on 3D cortical surfaces. Our framework leverages the intrinsic geometry of the…

图像与视频处理 · 电气工程与系统科学 2025-04-01 Hao-Chun Yang , Sicheng Dai , Saige Rutherford , Christian Gaser , Andre F Marquand , Christian F Beckmann , Thomas Wolfers

Traditionally, algorithms that learn to segment object instances in 2D images have heavily relied on large amounts of human-annotated data. Only recently, novel approaches have emerged tackling this problem in an unsupervised fashion.…

计算机视觉与模式识别 · 计算机科学 2025-07-25 Leon Sick , Dominik Engel , Sebastian Hartwig , Pedro Hermosilla , Timo Ropinski

Current state-of-the-art solutions for motion capture from a single camera are optimization driven: they optimize the parameters of a 3D human model so that its re-projection matches measurements in the video (e.g. person segmentation,…

计算机视觉与模式识别 · 计算机科学 2017-12-06 Hsiao-Yu Fish Tung , Hsiao-Wei Tung , Ersin Yumer , Katerina Fragkiadaki

It is a classical compute vision problem to obtain real scene depth maps by using a monocular camera, which has been widely concerned in recent years. However, training this model usually requires a large number of artificially labeled…

计算机视觉与模式识别 · 计算机科学 2020-09-15 Chunlai Chai , Yukuan Lou , Shijin Zhang

Deep learning models trained in a fully supervised manner have been shown to rely on so-called "shortcut" features. Shortcut features are inputs that are associated with the outcome of interest in the training data, but are either no longer…

机器学习 · 计算机科学 2022-07-12 Anil Palepu , Andrew L Beam

Much more attention has been paid to unsupervised feature selection nowadays due to the emergence of massive unlabeled data. The distribution of samples and the latent effect of training a learning method using samples in more effective…

机器学习 · 计算机科学 2021-12-15 Weiyi Li , Hongmei Chen , Tianrui Li , Jihong Wan , Binbin Sang

In this paper, we tackle for the first time, the problem of self-supervised representation learning for free-hand sketches. This importantly addresses a common problem faced by the sketch community -- that annotated supervisory data are…

计算机视觉与模式识别 · 计算机科学 2020-02-04 Peng Xu , Zeyu Song , Qiyue Yin , Yi-Zhe Song , Liang Wang

Unsupervised learning poses one of the most difficult challenges in computer vision today. The task has an immense practical value with many applications in artificial intelligence and emerging technologies, as large quantities of unlabeled…

计算机视觉与模式识别 · 计算机科学 2019-05-28 Ioana Croitoru , Simion-Vlad Bogolin , Marius Leordeanu

The immense success of deep learning based methods in computer vision heavily relies on large scale training datasets. These richly annotated datasets help the network learn discriminative visual features. Collecting and annotating such…

计算机视觉与模式识别 · 计算机科学 2018-07-09 Yash Patel , Lluis Gomez , Raul Gomez , Marçal Rusiñol , Dimosthenis Karatzas , C. V. Jawahar

Scene understanding is a prerequisite to many high level tasks for any automated intelligent machine operating in real world environments. Recent attempts with supervised learning have shown promise in this direction but also highlighted…

计算机视觉与模式识别 · 计算机科学 2015-11-30 Ankur Handa , Viorica Patraucean , Vijay Badrinarayanan , Simon Stent , Roberto Cipolla

The perception of transparent objects is one of the well-known challenges in computer vision. Conventional depth sensors have difficulty in sensing the depth of transparent objects due to refraction and reflection of light. Previous…

计算机视觉与模式识别 · 计算机科学 2025-12-05 Xianghui Fan , Zhaoyu Chen , Mengyang Pan , Anping Deng , Hang Yang

The crux of self-supervised video representation learning is to build general features from unlabeled videos. However, most recent works have mainly focused on high-level semantics and neglected lower-level representations and their…

计算机视觉与模式识别 · 计算机科学 2021-08-18 Rui Qian , Yuxi Li , Huabin Liu , John See , Shuangrui Ding , Xian Liu , Dian Li , Weiyao Lin

Vessel segmentation is an essential task in many clinical applications. Although supervised methods have achieved state-of-art performance, acquiring expert annotation is laborious and mostly limited for two-dimensional datasets with a…

图像与视频处理 · 电气工程与系统科学 2021-07-23 Rohit Jena , Sumedha Singla , Kayhan Batmanghelich

Few-shot learning and self-supervised learning address different facets of the same problem: how to train a model with little or no labeled data. Few-shot learning aims for optimization methods and models that can learn efficiently to…

计算机视觉与模式识别 · 计算机科学 2019-06-13 Spyros Gidaris , Andrei Bursuc , Nikos Komodakis , Patrick Pérez , Matthieu Cord

Self-supervised learning (SSL) for point cloud pre-training has become a cornerstone for many 3D vision tasks, enabling effective learning from large-scale unannotated data. At the scene level, existing SSL methods often incorporate volume…

计算机视觉与模式识别 · 计算机科学 2025-06-12 Keyi Liu , Weidong Yang , Ben Fei , Ying He

Scaling has not yet been convincingly demonstrated for pure self-supervised learning from video. However, prior work has focused evaluations on semantic-related tasks $\unicode{x2013}$ action classification, ImageNet classification, etc. In…

With the advent of billion-parameter foundation models, efficient fine-tuning has become increasingly important for the adaptation of models to downstream tasks. However, especially in computer vision, it can be hard to achieve good…

计算机视觉与模式识别 · 计算机科学 2024-09-13 Alfonso Taboada Warmerdam , Mathilde Caron , Yuki M. Asano

Deep neural networks need a big amount of training data, while in the real world there is a scarcity of data available for training purposes. To resolve this issue unsupervised methods are used for training with limited data. In this…

计算机视觉与模式识别 · 计算机科学 2022-02-10 Sayed Hashim , Muhammad Ali

Existing studies on self-supervised speech representation learning have focused on developing new training methods and applying pre-trained models for different applications. However, the quality of these models is often measured by the…

音频与语音处理 · 电气工程与系统科学 2024-01-18 Alexander H. Liu , Sung-Lin Yeh , James Glass