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Reliable image quality assessment is essential in applications where large volumes of images are acquired automatically and must be filtered before further analysis. In many practical scenarios, a pristine reference image is unavailable,…

Computer Vision and Pattern Recognition · Computer Science 2026-04-16 Koffi Titus Sergio Aglin , Anthony K. Muchiri , Celestin Nkundineza

With the development of rendering techniques, computer graphics generated images (CGIs) have been widely used in practical application scenarios such as architecture design, video games, simulators, movies, etc. Different from natural scene…

Graphics · Computer Science 2022-06-13 Tao Wang , Zicheng Zhang , Wei Sun , Xiongkuo Min , Wei Lu , Guangtao Zhai

Deep networks have demonstrated promising results in the field of Image Quality Assessment (IQA). However, there has been limited research on understanding how deep models in IQA work. This study introduces a novel positional masked…

Computer Vision and Pattern Recognition · Computer Science 2023-11-07 Junyong You , Yuan Lin , Jari Korhonen

Image quality assessment (IQA) is an important element of a broad spectrum of applications ranging from automatic video streaming to display technology. Furthermore, the measurement of image quality requires a balanced investigation of…

Computer Vision and Pattern Recognition · Computer Science 2020-12-02 Domonkos Varga

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

This tutorial provides the audience with the basic theories, methodologies, and current progresses of image quality assessment (IQA). From an actionable perspective, we will first revisit several subjective quality assessment methodologies,…

Computer Vision and Pattern Recognition · Computer Science 2021-10-20 Kede Ma , Yuming Fang

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

No-Reference Image Quality Assessment (NR-IQA) aims at estimating image quality in accordance with subjective human perception. However, most methods focus on exploring increasingly complex networks to improve the final…

Computer Vision and Pattern Recognition · Computer Science 2024-09-12 Ronghua Liao , Chen Hui , Lang Yuan , Haiqi Zhu , Feng Jiang

Image quality assessment (IQA) is crucial in the evaluation stage of novel algorithms operating on images, including traditional and machine learning based methods. Due to the lack of available quality-rated medical images, most commonly…

Image and Video Processing · Electrical Eng. & Systems 2026-05-01 Anna Breger , Janek Gröhl , Clemens Karner , Thomas R Else , Ian Selby , Tom Rix , Lara-Sophie Witt , Merle Duchêne , Jonathan Weir-McCall , Carola-Bibiane Schönlieb

The quality of visual input is very important for both human and machine perception. Consequently many processing techniques exist that deal with different distortions. Usually image processing is applied freely and lacks redundancy…

Image and Video Processing · Electrical Eng. & Systems 2021-02-10 Sascha Xu , Jan Bauer , Benjamin Axmann

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

Significant progress has been made in the past decade for full-reference image quality assessment (FR-IQA). However, new large scale image quality databases have been released for evaluating image quality assessment algorithms. In this…

Image and Video Processing · Electrical Eng. & Systems 2019-07-05 Domonkos Varga

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

In recent years, the rapid advancement of Artificial Intelligence Generated Content (AIGC) has attracted widespread attention. Among the AIGC, AI generated omnidirectional images hold significant potential for Virtual Reality (VR) and…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Liu Yang , Huiyu Duan , Long Teng , Yucheng Zhu , Xiaohong Liu , Menghan Hu , Xiongkuo Min , Guangtao Zhai , Patrick Le Callet

No-Reference Image Quality Assessment (NR-IQA) aims to predict image quality scores consistent with human perception without relying on pristine reference images, serving as a crucial component in various visual tasks. Ensuring the…

Computer Vision and Pattern Recognition · Computer Science 2024-04-29 Chenxi Yang , Yujia Liu , Dingquan Li , Tingting Jiang

Face Image Quality Assessment (FIQA) aims to assess the recognition utility of face samples and is essential for reliable face recognition (FR) systems. Existing approaches require computationally expensive procedures such as multiple…

Computer Vision and Pattern Recognition · Computer Science 2026-04-28 Guray Ozgur , Tahar Chettaoui , Eduarda Caldeira , Jan Niklas Kolf , Marco Huber , Andrea Atzori , Naser Damer , Fadi Boutros

Human visual perception naturally evaluates image quality across multiple scales, a hierarchical process that existing blind image quality assessment (BIQA) algorithms struggle to replicate effectively. This limitation stems from a…

Computer Vision and Pattern Recognition · Computer Science 2026-02-13 Runze Hu , Zihao Huang , Xudong Li , Bohan Fu , Yan Zhang , Sicheng Zhao

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

Image Quality Assessment (IQA) measures and predicts perceived image quality by human observers. Although recent studies have highlighted the critical influence that variations in the scale of an image have on its perceived quality, this…

Computer Vision and Pattern Recognition · Computer Science 2025-08-14 Vlad Hosu , Lorenzo Agnolucci , Daisuke Iso , Dietmar Saupe

We introduce a novel Image Quality Assessment (IQA) dataset comprising 6073 UHD-1 (4K) images, annotated at a fixed width of 3840 pixels. Contrary to existing No-Reference (NR) IQA datasets, ours focuses on highly aesthetic photos of high…

Computer Vision and Pattern Recognition · Computer Science 2024-09-05 Vlad Hosu , Lorenzo Agnolucci , Oliver Wiedemann , Daisuke Iso , Dietmar Saupe