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Deep learning models in medical imaging face dual challenges: domain shift, where models perform poorly when deployed in settings different from their training environment, and class imbalance, where certain disease conditions are naturally…

Computer Vision and Pattern Recognition · Computer Science 2025-01-10 Lei Li , Xinglin Zhang , Jun Liang , Tao Chen

Despite recent advancements in deep learning, deep neural networks continue to suffer from performance degradation when applied to new data that differs from training data. Test-time adaptation (TTA) aims to address this challenge by…

Computer Vision and Pattern Recognition · Computer Science 2023-09-06 Sanghun Jung , Jungsoo Lee , Nanhee Kim , Amirreza Shaban , Byron Boots , Jaegul Choo

Ensemble methods are generally regarded to be better than a single model if the base learners are deemed to be "accurate" and "diverse." Here we investigate a semi-supervised ensemble learning strategy to produce generalizable blind image…

Computer Vision and Pattern Recognition · Computer Science 2021-07-01 Zhihua Wang , Dingquan Li , Kede Ma

The research in image quality assessment (IQA) has a long history, and significant progress has been made by leveraging recent advances in deep neural networks (DNNs). Despite high correlation numbers on existing IQA datasets, DNN-based…

Image and Video Processing · Electrical Eng. & Systems 2021-04-09 Zhihua Wang , Kede Ma

Blind image quality assessment (BIQA) methods often incorporate auxiliary tasks to improve performance. However, existing approaches face limitations due to insufficient integration and a lack of flexible uncertainty estimation, leading to…

Computer Vision and Pattern Recognition · Computer Science 2026-02-24 Yiwei Lou , Yuanpeng He , Rongchao Zhang , Yongzhi Cao , Hanpin Wang , Yu Huang

The 4K content can deliver a more immersive visual experience to consumers due to the huge improvement of spatial resolution. However, existing blind image quality assessment (BIQA) methods are not suitable for the original and upscaled 4K…

Multimedia · Computer Science 2022-06-10 Wei Lu , Wei Sun , Xiongkuo Min , Wenhan Zhu , Quan Zhou , Jun He , Qiyuan Wang , Zicheng Zhang , Tao Wang , Guangtao Zhai

Vision transformer has demonstrated great potential in abundant vision tasks. However, it also inevitably suffers from poor generalization capability when the distribution shift occurs in testing (i.e., out-of-distribution data). To…

Computer Vision and Pattern Recognition · Computer Science 2022-12-07 Xin Li , Cuiling Lan , Guoqiang Wei , Zhibo Chen

Visual (image, video) quality assessments can be modelled by visual features in different domains, e.g., spatial, frequency, and temporal domains. Perceptual mechanisms in the human visual system (HVS) play a crucial role in generation of…

Image and Video Processing · Electrical Eng. & Systems 2022-08-23 Junyong You , Zheng Zhang

Recent studies have shown that Deep Neural Networks (DNNs) are susceptible to adversarial attacks, with frequency-domain analysis underscoring the significance of high-frequency components in influencing model predictions. Conversely,…

Computer Vision and Pattern Recognition · Computer Science 2024-05-07 Juanjuan Weng , Zhiming Luo , Shaozi Li

Underwater images suffer from severe degradations, including color distortions, reduced visibility, and loss of structural details due to wavelength-dependent attenuation and scattering. Existing enhancement methods primarily focus on…

Computer Vision and Pattern Recognition · Computer Science 2025-04-15 Jaskaran Singh Walia , Shravan Venkatraman , Pavithra LK

Blind image quality assessment (BIQA) approaches, while promising for automating image quality evaluation, often fall short in real-world scenarios due to their reliance on a generic quality standard applied uniformly across diverse images.…

Computer Vision and Pattern Recognition · Computer Science 2024-07-17 Nicolas Chahine , Sira Ferradans , Jean Ponce

Effective feature fusion of multispectral images plays a crucial role in multi-spectral object detection. Previous studies have demonstrated the effectiveness of feature fusion using convolutional neural networks, but these methods are…

Computer Vision and Pattern Recognition · Computer Science 2023-08-16 Jifeng Shen , Yifei Chen , Yue Liu , Xin Zuo , Heng Fan , Wankou Yang

The performance of many medical image analysis tasks are strongly associated with image data quality. When developing modern deep learning algorithms, rather than relying on subjective (human-based) image quality assessment (IQA), task…

Iris presentation attack detection (PAD) has achieved remarkable success to ensure the reliability and security of iris recognition systems. Most existing methods exploit discriminative features in the spatial domain and report outstanding…

Computer Vision and Pattern Recognition · Computer Science 2022-04-04 Yachun Li , Ying Lian , Jingjing Wang , Yuhui Chen , Chunmao Wang , Shiliang Pu

In this paper, we present a simple yet effective continual learning method for blind image quality assessment (BIQA) with improved quality prediction accuracy, plasticity-stability trade-off, and task-order/-length robustness. The key step…

Computer Vision and Pattern Recognition · Computer Science 2024-02-20 Weixia Zhang , Kede Ma , Guangtao Zhai , Xiaokang Yang

Adapting vision transformer foundation models through parameter-efficient fine-tuning (PEFT) methods has become increasingly popular. These methods optimize a limited subset of parameters, enabling efficient adaptation without the need to…

Computer Vision and Pattern Recognition · Computer Science 2024-12-02 Son Thai Ly , Hien V. Nguyen

Recent advances in adaptive object detection have achieved compelling results in virtue of adversarial feature adaptation to mitigate the distributional shifts along the detection pipeline. Whilst adversarial adaptation significantly…

Computer Vision and Pattern Recognition · Computer Science 2020-03-16 Chaoqi Chen , Zebiao Zheng , Xinghao Ding , Yue Huang , Qi Dou

Deploying deep models in real-world scenarios remains challenging due to significant performance drops under distribution shifts between training and deployment environments. Test-Time Adaptation (TTA) has recently emerged as a promising…

Machine Learning · Computer Science 2025-12-01 Zixian Su , Jingwei Guo , Xi Yang , Qiufeng Wang , Kaizhu Huang

Deploying Vision-Language Models (VLMs) on edge devices is challenged by resource constraints and performance degradation under distribution shifts. While test-time adaptation (TTA) can counteract such shifts, existing methods are too…

Artificial Intelligence · Computer Science 2026-02-18 Xin Wang , Hong Jia , Hualin Zhou , Sheng Guang Wang , Yu Zhang , Ting Dang , Tao Gu

Most unsupervised domain adaptation (UDA) methods assume that labeled source images are available during model adaptation. However, this assumption is often infeasible owing to confidentiality issues or memory constraints on mobile devices.…

Computer Vision and Pattern Recognition · Computer Science 2023-03-17 JoonHo Lee , Gyemin Lee
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