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A central problem in hyperspectral image classification is obtaining high classification accuracy when using a limited amount of labelled data. In this paper we present a novel graph-based framework, which aims to tackle this problem in the…

Computer Vision and Pattern Recognition · Computer Science 2020-06-24 Philip Sellars , Angelica Aviles-Rivero , Carola-Bibiane Schönlieb

Vision transformers (ViTs) have found only limited practical use in processing images, in spite of their state-of-the-art accuracy on certain benchmarks. The reason for their limited use include their need for larger training datasets and…

Computer Vision and Pattern Recognition · Computer Science 2022-01-26 Pranav Jeevan , Amit sethi

Recently, Graph Transformers have emerged as a promising solution to alleviate the inherent limitations of Graph Neural Networks (GNNs) and enhance graph representation performance. Unfortunately, Graph Transformers are computationally…

Neural and Evolutionary Computing · Computer Science 2024-03-26 Yundong Sun , Dongjie Zhu , Yansong Wang , Zhaoshuo Tian , Ning Cao , Gregory O'Hared

Tokens or patches within Vision Transformers (ViT) lack essential semantic information, unlike their counterparts in natural language processing (NLP). Typically, ViT tokens are associated with rectangular image patches that lack specific…

Computer Vision and Pattern Recognition · Computer Science 2024-02-29 Young Kyung Kim , J. Matías Di Martino , Guillermo Sapiro

Among image classification, skip and densely-connection-based networks have dominated most leaderboards. Recently, from the successful development of multi-head attention in natural language processing, it is sure that now is a time of…

Computer Vision and Pattern Recognition · Computer Science 2022-09-21 Ching-Hsun Tseng , Shin-Jye Lee , Jia-Nan Feng , Shengzhong Mao , Yu-Ping Wu , Jia-Yu Shang , Mou-Chung Tseng , Xiao-Jun Zeng

The paradigm of Transformers using the self-attention mechanism has manifested its advantage in learning graph-structured data. Yet, Graph Transformers are capable of modeling full range dependencies but are often deficient in extracting…

Machine Learning · Computer Science 2024-09-11 Minhong Zhu , Zhenhao Zhao , Weiran Cai

Most existing graph-based semi-supervised hyperspectral image classification methods rely on superpixel partitioning techniques. However, they suffer from misclassification of certain pixels due to inaccuracies in superpixel boundaries,…

Computer Vision and Pattern Recognition · Computer Science 2025-03-21 Yuqing Zhang , Qi Han , Ligeng Wang , Kai Cheng , Bo Wang , Kun Zhan

The extension of convolutional neural networks (CNNs) to non-Euclidean geometries has led to multiple frameworks for studying manifolds. Many of those methods have shown design limitations resulting in poor modelling of long-range…

Computer Vision and Pattern Recognition · Computer Science 2022-06-01 Simon Dahan , Logan Z. J. Williams , Abdulah Fawaz , Daniel Rueckert , Emma C. Robinson

Self-attention mechanisms, especially multi-head self-attention (MSA), have achieved great success in many fields such as computer vision and natural language processing. However, many existing vision transformer (ViT) works simply inherent…

Computer Vision and Pattern Recognition · Computer Science 2022-11-17 Leijie Wu , Song Guo , Yaohong Ding , Junxiao Wang , Wenchao Xu , Richard Yida Xu , Jie Zhang

In the evolving landscape of 6G networks, semantic communications are poised to revolutionize data transmission by prioritizing the transmission of semantic meaning over raw data accuracy. This paper presents a Vision Transformer…

Image and Video Processing · Electrical Eng. & Systems 2025-03-24 Muhammad Ahmed Mohsin , Muhammad Jazib , Zeeshan Alam , Muhmmad Farhan Khan , Muhammad Saad , Muhammad Ali Jamshed

Unsupervised image segmentation is an important task in many real-world scenarios where labelled data is of scarce availability. In this paper we propose a novel approach that harnesses recent advances in unsupervised learning using a…

Computer Vision and Pattern Recognition · Computer Science 2022-10-24 Moshe Eliasof , Nir Ben Zikri , Eran Treister

Recent self-supervised learning (SSL) methods have shown impressive results in learning visual representations from unlabeled images. This paper aims to improve their performance further by utilizing the architectural advantages of the…

Computer Vision and Pattern Recognition · Computer Science 2022-07-20 Sukmin Yun , Hankook Lee , Jaehyung Kim , Jinwoo Shin

Vision Transformer (ViT) self-attention mechanism is characterized by feature collapse in deeper layers, resulting in the vanishing of low-level visual features. However, such features can be helpful to accurately represent and identify…

Computer Vision and Pattern Recognition · Computer Science 2024-08-06 Anxhelo Diko , Danilo Avola , Marco Cascio , Luigi Cinque

With the continued innovations of deep neural networks, spiking neural networks (SNNs) that more closely resemble biological brain synapses have attracted attention owing to their low power consumption.However, for continuous data values,…

Neural and Evolutionary Computing · Computer Science 2021-03-02 Naoya Muramatsu , Hai-Tao Yu

In this work, we propose a fast superpixel-based color transfer method (SCT) between two images. Superpixels enable to decrease the image dimension and to extract a reduced set of color candidates. We propose to use a fast approximate…

Computer Vision and Pattern Recognition · Computer Science 2025-09-18 Rémi Giraud , Vinh-Thong Ta , Nicolas Papadakis

Transformers with powerful global relation modeling abilities have been introduced to fundamental computer vision tasks recently. As a typical example, the Vision Transformer (ViT) directly applies a pure transformer architecture on image…

Computer Vision and Pattern Recognition · Computer Science 2021-08-05 Xiaoyu Yue , Shuyang Sun , Zhanghui Kuang , Meng Wei , Philip Torr , Wayne Zhang , Dahua Lin

Recently, transformers have shown great potential in image classification and established state-of-the-art results on the ImageNet benchmark. However, compared to CNNs, transformers converge slowly and are prone to overfitting in low-data…

Computer Vision and Pattern Recognition · Computer Science 2022-06-16 Yuxuan Zhou , Wangmeng Xiang , Chao Li , Biao Wang , Xihan Wei , Lei Zhang , Margret Keuper , Xiansheng Hua

Superpixels have become very popular in many computer vision applications. Nevertheless, they remain underexploited since the superpixel decomposition may produce irregular and non stable segmentation results due to the dependency to the…

Computer Vision and Pattern Recognition · Computer Science 2025-09-26 Rémi Giraud , Vinh-Thong Ta , Aurélie Bugeau , Pierrick Coupé , Nicolas Papadakis

Graph representation learning has become a crucial task in machine learning and data mining due to its potential for modeling complex structures such as social networks, chemical compounds, and biological systems. Spiking neural networks…

Artificial Intelligence · Computer Science 2024-03-27 Huifeng Yin , Mingkun Xu , Jing Pei , Lei Deng

We propose global context vision transformer (GC ViT), a novel architecture that enhances parameter and compute utilization for computer vision. Our method leverages global context self-attention modules, joint with standard local…

Computer Vision and Pattern Recognition · Computer Science 2023-06-07 Ali Hatamizadeh , Hongxu Yin , Greg Heinrich , Jan Kautz , Pavlo Molchanov