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Recently, self-supervised representation learning gives further development in multimedia technology. Most existing self-supervised learning methods are applicable to packaged data. However, when it comes to streamed data, they are…

计算机视觉与模式识别 · 计算机科学 2022-11-03 Zhiwei Lin , Yongtao Wang , Hongxiang Lin

Cytoarchitectonic mapping provides anatomically grounded parcellations of brain structure and forms a foundation for integrative, multi-modal neuroscience analyses. These parcellations are defined based on the shape, density, and spatial…

图像与视频处理 · 电气工程与系统科学 2026-01-16 Shiqi Zhang , Fang Xu , Pengcheng Zhou

Unsupervised learning has made substantial progress over the last few years, especially by means of contrastive self-supervised learning. The dominating dataset for benchmarking self-supervised learning has been ImageNet, for which recent…

图像与视频处理 · 电气工程与系统科学 2022-08-17 Karin Stacke , Jonas Unger , Claes Lundström , Gabriel Eilertsen

Deep convolutional neural networks are powerful tools for learning visual representations from images. However, designing efficient deep architectures to analyse volumetric medical images remains challenging. This work investigates…

计算机视觉与模式识别 · 计算机科学 2017-07-10 Wenqi Li , Guotai Wang , Lucas Fidon , Sebastien Ourselin , M. Jorge Cardoso , Tom Vercauteren

Subspace clustering aims to group data points that lie in a union of low-dimensional subspaces and finds wide application in computer vision, hyperspectral imaging, and recommendation systems. However, most existing methods assume fully…

计算机视觉与模式识别 · 计算机科学 2026-02-03 Huanran Li , Daniel Pimentel-Alarcón

Contrastive learning has delivered impressive results for various tasks in the self-supervised regime. However, existing approaches optimize for learning representations specific to downstream scenarios, i.e., \textit{global}…

机器学习 · 计算机科学 2021-10-29 Shuang Ma , Zhaoyang Zeng , Daniel McDuff , Yale Song

Learning good image representations that are beneficial to downstream tasks is a challenging task in computer vision. As such, a wide variety of self-supervised learning approaches have been proposed. Among them, contrastive learning has…

计算机视觉与模式识别 · 计算机科学 2023-02-06 Yun Yue , Fangzhou Lin , Kazunori D Yamada , Ziming Zhang

Brain-computer interfaces (BCIs), is ways for electronic devices to communicate directly with the brain. For most medical-type brain-computer interface tasks, the activity of multiple units of neurons or local field potentials is sufficient…

机器学习 · 计算机科学 2022-05-25 Lang Qian , Shengjie Zheng , Chunshan Deng , Cheng Yang , Xiaojian Li

Contrastive learning has been proved to be a promising technique for image-level representation learning from unlabeled data. Many existing works have demonstrated improved results by applying contrastive learning in classification and…

图像与视频处理 · 电气工程与系统科学 2021-09-20 Dewen Zeng , John N. Kheir , Peng Zeng , Yiyu Shi

Many recent approaches in contrastive learning have worked to close the gap between pretraining on iconic images like ImageNet and pretraining on complex scenes like COCO. This gap exists largely because commonly used random crop…

计算机视觉与模式识别 · 计算机科学 2022-08-17 Renhao Wang , Hang Zhao , Yang Gao

Semi-supervised learning has demonstrated great potential in medical image segmentation by utilizing knowledge from unlabeled data. However, most existing approaches do not explicitly capture high-level semantic relations between distant…

计算机视觉与模式识别 · 计算机科学 2023-12-07 Qianying Liu , Xiao Gu , Paul Henderson , Fani Deligianni

Recent breakthroughs in self-supervised learning show that such algorithms learn visual representations that can be transferred better to unseen tasks than joint-training methods relying on task-specific supervision. In this paper, we found…

机器学习 · 计算机科学 2021-06-29 Hyuntak Cha , Jaeho Lee , Jinwoo Shin

Hierarchical semantic structures naturally exist in an image dataset, in which several semantically relevant image clusters can be further integrated into a larger cluster with coarser-grained semantics. Capturing such structures with image…

计算机视觉与模式识别 · 计算机科学 2022-05-24 Yuanfan Guo , Minghao Xu , Jiawen Li , Bingbing Ni , Xuanyu Zhu , Zhenbang Sun , Yi Xu

Automatic segmentation of brain MR images into white matter (WM), gray matter (GM), and cerebrospinal fluid (CSF) is critical for tissue volumetric analysis and cortical surface reconstruction. Due to dramatic structural and appearance…

图像与视频处理 · 电气工程与系统科学 2023-01-05 Xiaoyang Chen , Jinjian Wu , Wenjiao Lyu , Yicheng Zou , Kim-Han Thung , Siyuan Liu , Ye Wu , Sahar Ahmad , Pew-Thian Yap

How does the mind organize thoughts? The hippocampal-entorhinal complex is thought to support domain-general representation and processing of structural knowledge of arbitrary state, feature and concept spaces. In particular, it enables the…

人工智能 · 计算机科学 2022-02-24 Paul Stoewer , Christian Schlieker , Achim Schilling , Claus Metzner , Andreas Maier , Patrick Krauss

We propose a novel biologically-plausible solution to the credit assignment problem motivated by observations in the ventral visual pathway and trained deep neural networks. In both, representations of objects in the same category become…

机器学习 · 计算机科学 2020-12-08 Shanshan Qin , Nayantara Mudur , Cengiz Pehlevan

Pursuing realistic results according to human visual perception is the central concern in the image transformation tasks. Perceptual learning approaches like perceptual loss are empirically powerful for such tasks but they usually rely on…

计算机视觉与模式识别 · 计算机科学 2020-06-25 Kangfu Mei , Yao Lu , Qiaosi Yi , Haoyu Wu , Juncheng Li , Rui Huang

Identifying cerebral cortex layers is crucial for comparative studies of the cytoarchitecture aiming at providing insights into the relations between brain structure and function across species. The absence of extensive annotated datasets…

计算机视觉与模式识别 · 计算机科学 2023-11-28 Valentina Vadori , Antonella Peruffo , Jean-Marie Graïc , Giulia Vadori , Livio Finos , Enrico Grisan

We propose a novel machine learning strategy for studying neuroanatomical shape variation. Our model works with volumetric binary segmentation images, and requires no pre-processing such as the extraction of surface points or a mesh. The…

计算机视觉与模式识别 · 计算机科学 2024-10-30 Evan M. Yu , Mert R. Sabuncu

Multimodal models, such as the Contrastive Language-Image Pre-training (CLIP) model, have demonstrated remarkable success in aligning visual and linguistic representations. However, these models exhibit limitations when applied to…

计算机视觉与模式识别 · 计算机科学 2026-03-02 Hiroshi Sasaki