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Contrastive representation learning is crucial in time series analysis as it alleviates the issue of data noise and incompleteness as well as sparsity of supervision signal. However, existing constrastive learning frameworks usually focus…

Machine Learning · Computer Science 2024-06-26 Haozhi Gao , Qianqian Ren , Jinbao Li

Recently, the domestic COVID-19 epidemic situation is serious, but in public places, some people do not wear masks or wear masks incorrectly, which requires the relevant staff to instantly remind and supervise them to wear masks correctly.…

Computer Vision and Pattern Recognition · Computer Science 2024-12-10 Xuecheng Wu , Mengmeng Tian , Lanhang Zhai

Many tasks in computer vision are often calibrated and evaluated relative to human perception. In this paper, we propose to directly approximate the perceptual function performed by human observers completing a visual detection task.…

Computer Vision and Pattern Recognition · Computer Science 2020-06-16 Alan Dolhasz , Carlo Harvey , Ian Williams

Interval and large invasive breast cancers, which are associated with worse prognosis than other cancers, are usually detected at a late stage due to false negative assessments of screening mammograms. The missed screening-time detection is…

Computer Vision and Pattern Recognition · Computer Science 2025-12-16 Moein Sorkhei , Yue Liu , Hossein Azizpour , Edward Azavedo , Karin Dembrower , Dimitra Ntoula , Athanasios Zouzos , Fredrik Strand , Kevin Smith

It is widely accepted that optimization of medical imaging system performance should be guided by task-based measures of image quality (IQ). Task-based measures of IQ quantify the ability of an observer to perform a specific task such as…

Signal Processing · Electrical Eng. & Systems 2019-05-17 Weimin Zhou , Hua Li , Mark A. Anastasio

Recent results in coupled or temporal graphical models offer schemes for estimating the relationship structure between features when the data come from related (but distinct) longitudinal sources. A novel application of these ideas is for…

Machine Learning · Statistics 2017-11-22 Ronak Mehta , Hyunwoo J. Kim , Shulei Wang , Sterling C. Johnson , Ming Yuan , Vikas Singh

In recent years, the advent of spatial transcriptomics (ST) technology has unlocked unprecedented opportunities for delving into the complexities of gene expression patterns within intricate biological systems. Despite its transformative…

Image and Video Processing · Electrical Eng. & Systems 2024-07-12 Wenwen Min , Zhiceng Shi , Jun Zhang , Jun Wan , Changmiao Wang

Recent studies in the field of human vision science suggest that the human responses to the stimuli on a visual display are non-deterministic. People may attend to different locations on the same visual input at the same time. Based on this…

Computer Vision and Pattern Recognition · Computer Science 2015-03-13 Akisato kimura , Derek Pang , Tatsuto Takeuchi , Kouji Miyazato , Junji Yamato , Kunio Kashino

We study object hallucination in Multimodal Large Language Models (MLLMs) and improve visual contrastive decoding (VCD) by constructing an object-aligned auxiliary view. We leverage object-centric attention in self-supervised Vision…

Computer Vision and Pattern Recognition · Computer Science 2026-02-13 Boqi Chen , Xudong Liu , Jianing Qiu

Convolutional Neural Networks (CNN) are commonly used for the problem of object detection thanks to their increased accuracy. Nevertheless, the performance of CNN-based detection models is ambiguous when detection speed is considered. To…

Computer Vision and Pattern Recognition · Computer Science 2024-05-29 Ioanna Gogou , Dimitrios Koutsomitropoulos

Human activity recognition (HAR) with wearables is promising research that can be widely adopted in many smart healthcare applications. In recent years, the deep learning-based HAR models have achieved impressive recognition performance.…

Computer Vision and Pattern Recognition · Computer Science 2022-08-17 Songpengcheng Xia , Lei Chu , Ling Pei , Wenxian Yu , Robert C. Qiu

We address the problem of estimating image difficulty defined as the human response time for solving a visual search task. We collect human annotations of image difficulty for the PASCAL VOC 2012 data set through a crowd-sourcing platform.…

Computer Vision and Pattern Recognition · Computer Science 2017-05-24 Radu Tudor Ionescu , Bogdan Alexe , Marius Leordeanu , Marius Popescu , Dim P. Papadopoulos , Vittorio Ferrari

This study advances task-based image quality assessment by developing an anthropomorphic thresholded visual-search model observer. The model is an ideal observer for thresholded data inspired by the human visual system, allowing selective…

Image and Video Processing · Electrical Eng. & Systems 2026-01-14 Hongwei Lin , Howard C. Gifford

We aim to investigate the impact of image and signal properties on visual attention mechanisms during a signal detection task in digital images. The application of insight yielded from this work spans many areas of digital imaging where…

Computer Vision and Pattern Recognition · Computer Science 2026-01-15 Amar Kavuri , Howard C. Gifford , Mini Das

Multi-view clustering (MvC) utilizes information from multiple views to uncover the underlying structures of data. Despite significant advancements in MvC, mitigating the impact of missing samples in specific views on the integration of…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Zhenglai Li , Yuqi Shi , Xiao He , Chang Tang

Deep convolutional neural networks (DCNNs) have rivaled humans on many visual tasks, yet they remain vulnerable to near-imperceptible perturbations generated by adversarial attacks. Recent work shows that aligning DCNN representations with…

Neurons and Cognition · Quantitative Biology 2026-05-07 Zhenan Shao , Tianyu Ren , Chengxiao Wang , Leyla Isik , Diane M. Beck

The eye-tracking video saliency prediction (VSP) task and video salient object detection (VSOD) task both focus on the most attractive objects in video and show the result in the form of predictive heatmaps and pixel-level saliency masks,…

Computer Vision and Pattern Recognition · Computer Science 2025-07-01 Qi Qin , Runmin Cong , Gen Zhan , Yiting Liao , Sam Kwong

Visual domain gaps often impact object detection performance. Image-to-image translation can mitigate this effect, where contrastive approaches enable learning of the image-to-image mapping under unsupervised regimes. However, existing…

Computer Vision and Pattern Recognition · Computer Science 2024-10-28 Danai Triantafyllidou , Sarah Parisot , Ales Leonardis , Steven McDonagh

While effective in recommendation tasks, collaborative filtering (CF) techniques face the challenge of data sparsity. Researchers have begun leveraging contrastive learning to introduce additional self-supervised signals to address this.…

Information Retrieval · Computer Science 2024-02-20 Peijie Sun , Le Wu , Kun Zhang , Xiangzhi Chen , Meng Wang

Reliable detection of anomalies is crucial when deploying machine learning models in practice, but remains challenging due to the lack of labeled data. To tackle this challenge, contrastive learning approaches are becoming increasingly…

Computer Vision and Pattern Recognition · Computer Science 2021-07-19 Puck de Haan , Sindy Löwe