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Super-resolution (SR) applied to real-world low-resolution (LR) images often results in complex, irregular degradations that stem from the inherent complexity of natural scene acquisition. In contrast to SR artifacts arising from synthetic…

Computer Vision and Pattern Recognition · Computer Science 2026-02-12 Kian Majlessi , Amir Masoud Soltani , Mohammad Ebrahim Mahdavi , Aurelien Gourrier , Peyman Adibi

In clinical practice MR images are often first seen by radiologists long after the scan. If image quality is inadequate either patients have to return for an additional scan, or a suboptimal interpretation is rendered. An automatic image…

Image and Video Processing · Electrical Eng. & Systems 2022-01-21 Ke Lei , John M. Pauly , Shreyas S. Vasanawala

Image Quality Assessment (IQA) with reference images have achieved great success by imitating the human vision system, in which the image quality is effectively assessed by comparing the query image with its pristine reference image.…

Computer Vision and Pattern Recognition · Computer Science 2023-12-04 Xudong Li , Jingyuan Zheng , Xiawu Zheng , Runze Hu , Enwei Zhang , Yuting Gao , Yunhang Shen , Ke Li , Yutao Liu , Pingyang Dai , Yan Zhang , Rongrong Ji

Image Quality Assessment (IQA) is important for scientific inquiry, especially in medical imaging and machine learning. Potential data quality issues can be exacerbated when human-based workflows use limited views of the data that may…

Computer Vision and Pattern Recognition · Computer Science 2021-07-28 Riqiang Gao , Mirza S. Khan , Yucheng Tang , Kaiwen Xu , Steve Deppen , Yuankai Huo , Kim L. Sandler , Pierre P. Massion , Bennett A. Landman

The visual quality of point clouds has been greatly emphasized since the ever-increasing 3D vision applications are expected to provide cost-effective and high-quality experiences for users. Looking back on the development of point cloud…

Computer Vision and Pattern Recognition · Computer Science 2023-04-25 Zicheng Zhang , Wei Sun , Xiongkuo Min , Quan Zhou , Jun He , Qiyuan Wang , Guangtao Zhai

Fine-grained image-text alignment is a pivotal challenge in multimodal learning, underpinning key applications such as visual question answering, image captioning, and vision-language navigation. Unlike global alignment, fine-grained…

Computer Vision and Pattern Recognition · Computer Science 2025-12-02 Jiale Liu , Haoming Zhou , Yishu Liu , Bingzhi Chen , Yuncheng Jiang

Super-resolution (SR), a classical inverse problem in computer vision, is inherently ill-posed, inducing a distribution of plausible solutions for every input. However, the desired result is not simply the expectation of this distribution,…

Computer Vision and Pattern Recognition · Computer Science 2025-04-28 Fengjia Zhang , Samrudhdhi B. Rangrej , Tristan Aumentado-Armstrong , Afsaneh Fazly , Alex Levinshtein

In this dissertation, we present a generative model to capture the relation between facial image quality features (like pose, illumination direction, etc) and face recognition performance. Such a model can be used to predict the performance…

Computer Vision and Pattern Recognition · Computer Science 2015-10-27 Abhishek Dutta

Year after year, the demand for ever-better smartphone photos continues to grow, in particular in the domain of portrait photography. Manufacturers thus use perceptual quality criteria throughout the development of smartphone cameras. This…

Computer Vision and Pattern Recognition · Computer Science 2023-04-13 Nicolas Chahine , Ana-Stefania Calarasanu , Davide Garcia-Civiero , Theo Cayla , Sira Ferradans , Jean Ponce

Perceptual image quality assessment (IQA) is the task of predicting the visual quality of an image as perceived by a human observer. Current state-of-the-art techniques are based on deep representations trained in discriminative manner.…

Image and Video Processing · Electrical Eng. & Systems 2024-04-30 Simon Raviv , Gal Chechik

The current state-of-the-art No-Reference Image Quality Assessment (NR-IQA) methods typically rely on feature extraction from upstream semantic backbone networks, assuming that all extracted features are relevant. However, we make a key…

Computer Vision and Pattern Recognition · Computer Science 2025-06-17 Xudong Li , Timin Gao , Runze Hu , Yan Zhang , Shengchuan Zhang , Xiawu Zheng , Jingyuan Zheng , Yunhang Shen , Ke Li , Yutao Liu , Pingyang Dai , Rongrong Ji

The design of image and video quality assessment (QA) algorithms is extremely important to benchmark and calibrate user experience in modern visual systems. A major drawback of the state-of-the-art QA methods is their limited ability to…

Image and Video Processing · Electrical Eng. & Systems 2025-12-30 Shankhanil Mitra , Diptanu De , Shika Rao , Rajiv Soundararajan

Recent advances of large multi-modality models (LMM) have greatly improved the ability of image quality assessment (IQA) method to evaluate and explain the quality of visual content. However, these advancements are mostly focused on overall…

Computer Vision and Pattern Recognition · Computer Science 2024-07-25 Chaofeng Chen , Sensen Yang , Haoning Wu , Liang Liao , Zicheng Zhang , Annan Wang , Wenxiu Sun , Qiong Yan , Weisi Lin

Full-reference image quality assessment (FR-IQA) models generally operate by measuring the visual differences between a degraded image and its reference. However, existing FR-IQA models including both the classical ones (eg, PSNR and SSIM)…

Computer Vision and Pattern Recognition · Computer Science 2024-08-20 Kang Xiao , Xu Wang , Yulin He , Baoliang Chen , Xuelin Shen

Recent advancements in the field of No-Reference Image Quality Assessment (NR-IQA) using deep learning techniques demonstrate high performance across multiple open-source datasets. However, such models are typically very large and complex…

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

Reinforcement Learning (RL) has empowered Multimodal Large Language Models (MLLMs) to achieve superior human preference alignment in Image Quality Assessment (IQA). However, existing RL-based IQA models typically rely on coarse-grained…

Image and Video Processing · Electrical Eng. & Systems 2026-05-11 Xiang Li , Xueheng Li , Yu Wang , Xuanhua He , Zhangchi Hu , Weiwei Yu , Chengjun Xie

Quality assessment for User Generated Content (UGC) videos plays an important role in ensuring the viewing experience of end-users. Previous UGC video quality assessment (VQA) studies either use the image recognition model or the image…

Computer Vision and Pattern Recognition · Computer Science 2022-10-21 Wei Sun , Xiongkuo Min , Wei Lu , Guangtao Zhai

Automatic medical report generation has the potential to support clinical diagnosis, reduce the workload of radiologists, and demonstrate potential for enhancing diagnostic consistency. However, current evaluation metrics often fail to…

Computation and Language · Computer Science 2025-08-06 Zhenxuan Zhang , Kinhei Lee , Peiyuan Jing , Weihang Deng , Huichi Zhou , Zihao Jin , Jiahao Huang , Zhifan Gao , Dominic C Marshall , Yingying Fang , Guang Yang

Despite recent advancements in latent diffusion models that generate high-dimensional image data and perform various downstream tasks, there has been little exploration into perceptual consistency within these models on the task of…

Computer Vision and Pattern Recognition · Computer Science 2025-06-03 Shreshth Saini , Ru-Ling Liao , Yan Ye , Alan C. Bovik

Image Quality Assessment (IQA) models aim to predict perceptual image quality in alignment with human judgments. No-Reference (NR) IQA remains particularly challenging due to the absence of a reference image. While deep learning has…

Image and Video Processing · Electrical Eng. & Systems 2025-07-18 Rajesh Sureddi , Saman Zadtootaghaj , Nabajeet Barman , Alan C. Bovik