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Transformers are more and more popular in computer vision, which treat an image as a sequence of patches and learn robust global features from the sequence. However, pure transformers are not entirely suitable for vehicle re-identification…

Computer Vision and Pattern Recognition · Computer Science 2023-01-12 Fei Shen , Yi Xie , Jianqing Zhu , Xiaobin Zhu , Huanqiang Zeng

Skin lesion segmentation from dermoscopy images is of great importance for improving the quantitative analysis of skin cancer. However, the automatic segmentation of melanoma is a very challenging task owing to the large variation of…

Image and Video Processing · Electrical Eng. & Systems 2021-10-11 Jiacheng Wang , Lan Wei , Liansheng Wang , Qichao Zhou , Lei Zhu , Jing Qin

Prostate cancer is one of the most prevalent cancers worldwide. One of the key factors in reducing its mortality is based on early detection. The computer-aided diagnosis systems for this task are based on the glandular structural analysis…

Image and Video Processing · Electrical Eng. & Systems 2021-05-25 Julio Silva-Rodríguez , Elena Payá-Bosch , Gabriel García , Adrián Colomer , Valery Naranjo

Transformer has been widely used in histopathology whole slide image (WSI) classification for the purpose of tumor grading, prognosis analysis, etc. However, the design of token-wise self-attention and positional embedding strategy in the…

Computer Vision and Pattern Recognition · Computer Science 2022-06-28 Yushan Zheng , Jun Li , Jun Shi , Fengying Xie , Zhiguo Jiang

Recent developments in deep learning have revolutionized the paradigm of image restoration. However, its applications on real image denoising are still limited, due to its sensitivity to training data and the complex nature of real image…

Computer Vision and Pattern Recognition · Computer Science 2019-05-06 Jin Zeng , Jiahao Pang , Wenxiu Sun , Gene Cheung

The significant molecular and pathological heterogeneity of glioblastoma, an aggressive brain tumor, complicates diagnosis and patient stratification. While traditional histopathological assessment remains the standard, deep learning offers…

Computer Vision and Pattern Recognition · Computer Science 2025-11-26 Juexin Zhang , Qifeng Zhong , Ying Weng , Ke Chen

We build interpretable and lightweight transformer-like neural networks by unrolling iterative optimization algorithms that minimize graph smoothness priors -- the quadratic graph Laplacian regularizer (GLR) and the $\ell_1$-norm graph…

Machine Learning · Computer Science 2024-11-07 Tam Thuc Do , Parham Eftekhar , Seyed Alireza Hosseini , Gene Cheung , Philip Chou

Modern histopathological image analysis relies on the segmentation of cell structures to derive quantitative metrics required in biomedical research and clinical diagnostics. State-of-the-art deep learning approaches predominantly apply…

Image and Video Processing · Electrical Eng. & Systems 2022-01-12 Yoav Alon , Huiyu Zhou

The deployment of computer-aided diagnosis systems for cervical cancer screening using whole slide images (WSIs) faces critical challenges due to domain shifts caused by staining variations across different scanners and imaging…

Image and Video Processing · Electrical Eng. & Systems 2025-03-11 Jiangdong Cai , Haotian Jiang , Zhenrong Shen , Yonghao Li , Honglin Xiong , Lichi Zhang , Qian Wang

Whole gland (WG) segmentation of the prostate plays a crucial role in detection, staging and treatment planning of prostate cancer (PCa). Despite promise shown by deep learning (DL) methods, they rely on the availability of a considerable…

Image and Video Processing · Electrical Eng. & Systems 2021-07-23 Alvaro Fernandez-Quilez , Steinar Valle Larsen , Morten Goodwin , Thor Ole Gulsurd , Svein Reidar Kjosavik , Ketil Oppedal

The existing sonar image classification methods based on deep learning are often analyzed in Euclidean space, only considering the local image features. For this reason, this paper presents a sonar classification method based on improved…

Computer Vision and Pattern Recognition · Computer Science 2022-11-29 Can Lei , Huigang Wang , Juan Lei

Multiple instance learning (MIL) has become the leading approach for extracting discriminative features from whole slide images (WSIs) in computational pathology. Attention-based MIL methods can identify key patches but tend to overlook…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Lubin Gan , Xiaoman Wu , Jing Zhang , Zhifeng Wang , Linhao Qu , Siying Wu , Xiaoyan Sun

Low-dose computed tomography (LDCT) reconstruction faces a critical tradeoff between reconstruction quality and resource requirements. While recent deep learning methods achieve state-of-the-art performance, they typically rely on over…

Image and Video Processing · Electrical Eng. & Systems 2026-05-26 Veera Varuni Radhakrishnan , Chinthaka Dinesh , Qurat-ul-Ain Azim

Graphs are fundamental mathematical structures used in various fields to represent data, signals and processes. In this paper, we propose a novel framework for learning/estimating graphs from data. The proposed framework includes (i)…

Machine Learning · Computer Science 2017-07-07 Hilmi E. Egilmez , Eduardo Pavez , Antonio Ortega

Recent papers have formulated the problem of learning graphs from data as an inverse covariance estimation with graph Laplacian constraints. While such problems are convex, existing methods cannot guarantee that solutions will have specific…

Machine Learning · Statistics 2018-05-09 Eduardo Pavez , Hilmi E. Egilmez , Antonio Ortega

Graphs with diverse structural characteristics play a central role in modelling and optimization tasks. The ability to generate different types of graphs that exhibit shared properties is likewise essential for algorithm selection and…

Neural and Evolutionary Computing · Computer Science 2026-03-31 Hendrik Richter , Frank Neumann

Segmentation of Prostate Cancer (PCa) tissues from Gleason graded histopathology images is vital for accurate diagnosis. Although deep learning (DL) based segmentation methods achieve state-of-the-art accuracy, they rely on large datasets…

Image and Video Processing · Electrical Eng. & Systems 2021-10-04 Dwarikanath Mahapatra

The whole slide histopathology images (WSIs) play a critical role in gastric cancer diagnosis. However, due to the large scale of WSIs and various sizes of the abnormal area, how to select informative regions and analyze them are quite…

Computer Vision and Pattern Recognition · Computer Science 2020-10-14 Shujun Wang , Yaxi Zhu , Lequan Yu , Hao Chen , Huangjing Lin , Xiangbo Wan , Xinjuan Fan , Pheng-Ann Hen

This work addresses the problem of graph learning from data following a Gaussian Graphical Model (GGM) with a time-varying mean. Graphical Lasso (GL), the standard method for estimating sparse precision matrices, assumes that the observed…

Machine Learning · Computer Science 2025-03-26 Samuel Rey , Ernesto Curbelo , Luca Martino , Fernando Llorente , Antonio G. Marques

With the rapid advancement of pathology foundation models (FMs), the representation learning of whole slide images (WSIs) attracts increasing attention. Existing studies develop high-quality patch feature extractors and employ carefully…

Computer Vision and Pattern Recognition · Computer Science 2025-03-27 Yuxuan Chen , Jiawen Li , Jiali Hu , Xitong Ling , Tian Guan , Anjia Han , Yonghong He