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Video Quality Assessment (VQA) aims to evaluate video quality based on perceptual distortions and human preferences. Despite the promising performance of existing methods using Convolutional Neural Networks (CNNs) and Vision Transformers…

Computer Vision and Pattern Recognition · Computer Science 2025-05-07 Wei-Ting Chen , Yu-Jiet Vong , Yi-Tsung Lee , Sy-Yen Kuo , Qiang Gao , Sizhuo Ma , Jian Wang

Most of the Deep Neural Networks (DNNs) based CT image denoising literature shows that DNNs outperform traditional iterative methods in terms of metrics such as the RMSE, the PSNR and the SSIM. In many instances, using the same metrics, the…

Computer Vision and Pattern Recognition · Computer Science 2021-11-19 Prabhat KC , Rongping Zeng , M. Mehdi Farhangi , Kyle J. Myers

No-Reference Image Quality Assessment (NR-IQA) remains a challenging task due to the diversity of distortions and the lack of large annotated datasets. Many studies have attempted to tackle these challenges by developing more accurate…

Computer Vision and Pattern Recognition · Computer Science 2024-09-09 Nasim Jamshidi Avanaki , Abhijay Ghildyal , Nabajeet Barman , Saman Zadtootaghaj

One major problem of objective Image Quality Assessment (IQA) methods is the lack of linearity of their quality estimates with respect to scores expressed by human subjects. For this reason, usually IQA metrics undergo a calibration process…

Computer Vision and Pattern Recognition · Computer Science 2022-05-25 Elio D. Di Claudio , Paolo Giannitrapani , Giovanni Jacovitti

New multinuclear MRI techniques, such as sodium MRI, generally suffer from low image quality due to an inherently low signal. Postprocessing methods, such as image denoising, have been developed for image enhancement. However, the…

Performance of blind image quality assessment (BIQA) models has been significantly boosted by end-to-end optimization of feature engineering and quality regression. Nevertheless, due to the distributional shift between images simulated in…

Computer Vision and Pattern Recognition · Computer Science 2021-04-07 Weixia Zhang , Kede Ma , Guangtao Zhai , Xiaokang Yang

AI-Generated Images (AGIs) have inherent multimodal nature. Unlike traditional image quality assessment (IQA) on natural scenarios, AGIs quality assessment (AGIQA) takes the correspondence of image and its textual prompt into consideration.…

Computer Vision and Pattern Recognition · Computer Science 2024-05-22 Bowen Qu , Haohui Li , Wei Gao

Progress in lighting estimation is tracked by computing existing image quality assessment (IQA) metrics on images from standard datasets. While this may appear to be a reasonable approach, we demonstrate that doing so does not correlate to…

Computer Vision and Pattern Recognition · Computer Science 2024-03-22 Justine Giroux , Mohammad Reza Karimi Dastjerdi , Yannick Hold-Geoffroy , Javier Vazquez-Corral , Jean-François Lalonde

Full-reference image quality assessment (FR-IQA) generally assumes that reference images are of perfect quality. However, this assumption is flawed due to the sensor and optical limitations of modern imaging systems. Moreover, recent…

Computer Vision and Pattern Recognition · Computer Science 2025-03-20 Du Chen , Tianhe Wu , Kede Ma , Lei Zhang

Magnetic Resonance Imaging (MRI) suffers from several artifacts, the most common of which are motion artifacts. These artifacts often yield images that are of non-diagnostic quality. To detect such artifacts, images are prospectively…

Image and Video Processing · Electrical Eng. & Systems 2019-12-09 Jeffrey Ma , Ukash Nakarmi , Cedric Yue Sik Kin , Christopher Sandino , Joseph Y. Cheng , Ali B. Syed , Peter Wei , John M. Pauly , Shreyas Vasanawala

Image Quality Assessment (IQA) and Image Aesthetic Assessment (IAA) aim to simulate human subjective perception of image visual quality and aesthetic appeal. Despite distinct learning objectives, they have underlying interconnectedness due…

Computer Vision and Pattern Recognition · Computer Science 2025-07-15 Hantao Zhou , Longxiang Tang , Rui Yang , Guanyi Qin , Yan Zhang , Yutao Li , Xiu Li , Runze Hu , Guangtao Zhai

Contemporary no-reference image quality assessment (NR-IQA) models can effectively quantify perceived image quality, often achieving strong correlations with human perceptual scores on standard IQA benchmarks. Yet, limited efforts have been…

Computer Vision and Pattern Recognition · Computer Science 2025-01-16 Weixia Zhang , Dingquan Li , Guangtao Zhai , Xiaokang Yang , Kede Ma

Full-reference (FR) image quality assessment (IQA) models assume a high quality "pristine" image as a reference against which to measure perceptual image quality. In many applications, however, the assumption that the reference image is of…

Image and Video Processing · Electrical Eng. & Systems 2018-02-12 Xiangxu Yu , Christos G. Bampis , Praful Gupta , Alan C. Bovik

We propose a no-reference image quality assessment (NR-IQA) approach that learns from rankings (RankIQA). To address the problem of limited IQA dataset size, we train a Siamese Network to rank images in terms of image quality by using…

Computer Vision and Pattern Recognition · Computer Science 2017-07-27 Xialei Liu , Joost van de Weijer , Andrew D. Bagdanov

The main challenge in applying state-of-the-art deep learning methods to predict image quality in-the-wild is the relatively small size of existing quality scored datasets. The reason for the lack of larger datasets is the massive resources…

Computer Vision and Pattern Recognition · Computer Science 2020-05-26 Hanhe Lin , Vlad Hosu , Dietmar Saupe

Image recognition tasks typically use deep learning and require enormous processing power, thus relying on hardware accelerators like GPUs and TPUs for fast, timely processing. Failure in real-time image recognition tasks can occur due to…

Computer Vision and Pattern Recognition · Computer Science 2024-03-27 Nikolaos Louloudakis , Perry Gibson , José Cano , Ajitha Rajan

Blind Image Quality Assessment (BIQA) has advanced significantly through deep learning, but the scarcity of large-scale labeled datasets remains a challenge. While synthetic data offers a promising solution, models trained on existing…

Computer Vision and Pattern Recognition · Computer Science 2026-01-05 Aobo Li , Jinjian Wu , Yongxu Liu , Leida Li , Weisheng Dong

Image Quality Assessment (IQA) is a long-standing problem in computer vision. Previous methods typically focus on predicting numerical scores without explanation or providing low-level descriptions lacking precise scores. Recent…

Computer Vision and Pattern Recognition · Computer Science 2026-01-16 Guoqiang Liang , Jianyi Wang , Zhonghua Wu , Shangchen Zhou

A long-held challenge in no-reference image quality assessment (NR-IQA) learning from human subjective perception is the lack of objective generalization to unseen natural distortions. To address this, we integrate a novel Depth-Guided…

Computer Vision and Pattern Recognition · Computer Science 2025-06-02 Vaishnav Ramesh , Junliang Liu , Haining Wang , Md Jahidul Islam

The vulnerability to slight input perturbations is a worrying yet intriguing property of deep neural networks (DNNs). Despite many previous works studying the reason behind such adversarial behavior, the relationship between the…

Machine Learning · Statistics 2019-06-07 Yujun Shi , Benben Liao , Guangyong Chen , Yun Liu , Ming-Ming Cheng , Jiashi Feng