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360-degree/omnidirectional images (OIs) have achieved remarkable attentions due to the increasing applications of virtual reality (VR). Compared to conventional 2D images, OIs can provide more immersive experience to consumers, benefitting…

Computer Vision and Pattern Recognition · Computer Science 2021-02-24 Wei Zhou , Jiahua Xu , Qiuping Jiang , Zhibo Chen

Light field image quality assessment (LFI-QA) is a significant and challenging research problem. It helps to better guide light field acquisition, processing and applications. However, only a few objective models have been proposed and none…

Image and Video Processing · Electrical Eng. & Systems 2022-02-21 Likun Shi , Wei Zhou , Zhibo Chen , Jinglin Zhang

We present the Multi-Scale Spatial Channel Attention Network (MS-SCANet), a transformer-based architecture designed for no-reference image quality assessment (IQA). MS-SCANet features a dual-branch structure that processes images at…

Image and Video Processing · Electrical Eng. & Systems 2026-02-05 Mayesha Maliha R. Mithila , Mylene C. Q. Farias

Most modern No-Reference Image-Quality Assessment (NR-IQA) metrics are based on neural networks vulnerable to adversarial attacks. Attacks on such metrics lead to incorrect image/video quality predictions, which poses significant risks,…

Image and Video Processing · Electrical Eng. & Systems 2024-11-20 Ekaterina Shumitskaya , Mikhail Pautov , Dmitriy Vatolin , Anastasia Antsiferova

Several existing and successful full reference image quality assessment (IQA) models use linear color transformation and downsampling before measuring similarity or quality of images. This paper indicates to the right order of these two…

Multimedia · Computer Science 2016-06-21 Hossein Ziaei Nafchi , Mohamed Cheriet

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

As super-resolution (SR) techniques advance, we observe a growing distrust of evaluation metrics in recent SR research. An inconsistency often emerges between certain evaluation criteria and human perceptual preference. Although current SR…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Shaolin Su , Josep M. Rocafort , Danna Xue , David Serrano-Lozano , Lei Sun , Javier Vazquez-Corral

Image Quality Assessment (IQA) is essential in various Computer Vision tasks such as image deblurring and super-resolution. However, most IQA methods require reference images, which are not always available. While there are some…

Image and Video Processing · Electrical Eng. & Systems 2024-05-06 Han Cui , Alfredo De Goyeneche , Efrat Shimron , Boyuan Ma , Michael Lustig

Deep learning methods for image quality assessment (IQA) are limited due to the small size of existing datasets. Extensive datasets require substantial resources both for generating publishable content and annotating it accurately. We…

Computer Vision and Pattern Recognition · Computer Science 2020-05-28 Vlad Hosu , Hanhe Lin , Tamas Sziranyi , Dietmar Saupe

AI-based image enhancement techniques have been widely adopted in various visual applications, significantly improving the perceptual quality of user-generated content (UGC). However, the lack of specialized quality assessment models has…

Computer Vision and Pattern Recognition · Computer Science 2025-08-12 Shushi Wang , Chunyi Li , Zicheng Zhang , Han Zhou , Wei Dong , Jun Chen , Guangtao Zhai , Xiaohong Liu

Recent multimodal large language models (MLLMs) have demonstrated strong capabilities in image quality assessment (IQA) tasks. However, adapting such large-scale models is computationally expensive and still relies on substantial Mean…

Computer Vision and Pattern Recognition · Computer Science 2026-01-29 Xinyue Li , Zhichao Zhang , Zhiming Xu , Shubo Xu , Xiongkuo Min , Yitong Chen , Guangtao Zhai

Image contrast was a fundamental factor in visual perception and played a vital role in overall image quality. However, most no reference image quality assessment NR IQA models struggled to accurately evaluate contrast distortions under…

Computer Vision and Pattern Recognition · Computer Science 2025-09-29 Javad Hassannataj Joloudari , Bita Mesbahzadeh , Omid Zare , Emrah Arslan , Roohallah Alizadehsani , Hossein Moosaei

Image Quality Assessment (IQA) is of great value in the workflow of Magnetic Resonance Imaging (MRI)-based analysis. Blind IQA (BIQA) methods are especially required since high-quality reference MRI images are usually not available.…

Image and Video Processing · Electrical Eng. & Systems 2021-07-16 Kehan Qi , Haoran Li , Chuyu Rong , Yu Gong , Cheng Li , Hairong Zheng , Shanshan Wang

Image quality remains a key problem for both traditional and deep learning (DL)-based approaches to retinal image analysis, but identifying poor quality images can be time consuming and subjective. Thus, automated methods for retinal image…

Computer Vision and Pattern Recognition · Computer Science 2023-07-26 Justin Engelmann , Amos Storkey , Miguel O. Bernabeu

Many super-resolution (SR) algorithms have been proposed to increase image resolution. However, full-reference (FR) image quality assessment (IQA) metrics for comparing and evaluating different SR algorithms are limited. In this work, we…

Computer Vision and Pattern Recognition · Computer Science 2025-09-09 Yixiao Li , Xiaoyuan Yang , Guanghui Yue , Jun Fu , Qiuping Jiang , Xu Jia , Paul L. Rosin , Hantao Liu , Wei Zhou

Image Quality Assessment (IQA) models benefit significantly from semantic information, which allows them to treat different types of objects distinctly. Currently, leveraging semantic information to enhance IQA is a crucial research…

Computer Vision and Pattern Recognition · Computer Science 2024-05-21 Wensheng Pan , Timin Gao , Yan Zhang , Runze Hu , Xiawu Zheng , Enwei Zhang , Yuting Gao , Yutao Liu , Yunhang Shen , Ke Li , Shengchuan Zhang , Liujuan Cao , Rongrong Ji

Omnidirectional image quality assessment (OIQA) has been widely investigated in the past few years and achieved much success. However, most of existing studies are dedicated to solve the uniform distortion problem in OIQA, which has a…

Image and Video Processing · Electrical Eng. & Systems 2025-01-22 Jiebin Yan , Jiale Rao , Junjie Chen , Ziwen Tan , Weide Liu , Yuming Fang

Current full-reference image quality assessment (FR-IQA) methods often fuse features from reference and distorted images, overlooking that color and luminance distortions occur mainly at low frequencies, whereas edge and texture distortions…

Image and Video Processing · Electrical Eng. & Systems 2024-12-23 Xuekai Wei , Junyu Zhang , Qinlin Hu , Mingliang Zhou\\Yong Feng , Weizhi Xian , Huayan Pu , Sam Kwong

Deep neural networks (DNNs) achieve great success in blind image quality assessment (BIQA) with large pre-trained models in recent years. Their solutions cannot be easily deployed at mobile or edge devices, and a lightweight solution is…

Image and Video Processing · Electrical Eng. & Systems 2022-07-12 Zhanxuan Mei , Yun-Cheng Wang , Xingze He , C. -C. Jay Kuo

Image Quality Assessment (IQA) models are increasingly deployed as perceptual critics to guide generative models and image restoration. This role demands not only accurate scores but also actionable, localized feedback. However, current…

Computer Vision and Pattern Recognition · Computer Science 2026-04-21 Xudong Li , Jiaxi Tan , Ziyin Zhou , Yan Zhong , Zihao Huang , Jingyuan Zheng , Yan Zhang , Xiawu Zheng , Rongrong Ji