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No-reference point cloud quality assessment (NR-PCQA) aims to automatically evaluate the perceptual quality of distorted point clouds without available reference, which have achieved tremendous improvements due to the utilization of deep…

Computer Vision and Pattern Recognition · Computer Science 2024-03-28 Ziyu Shan , Yujie Zhang , Qi Yang , Haichen Yang , Yiling Xu , Jenq-Neng Hwang , Xiaozhong Xu , Shan Liu

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

Blind Image Quality Assessment (BIQA) is a fundamental task in computer vision, which however remains unresolved due to the complex distortion conditions and diversified image contents. To confront this challenge, we in this paper propose a…

Computer Vision and Pattern Recognition · Computer Science 2023-04-12 Guanyi Qin , Runze Hu , Yutao Liu , Xiawu Zheng , Haotian Liu , Xiu Li , Yan Zhang

Existing full-reference image quality assessment (FR-IQA) methods achieve high-precision evaluation by analysing feature differences between reference and distorted images. However, their performance is constrained by the quality of the…

Computer Vision and Pattern Recognition · Computer Science 2026-02-23 Xuting Lan , Mingliang Zhou , Xuekai Wei , Jielu Yan , Yueting Huang , Huayan Pu , Jun Luo , Weijia Jia

The no-reference image quality assessment is a challenging domain that addresses estimating image quality without the original reference. We introduce an improved mechanism to extract local and non-local information from images via…

Image and Video Processing · Electrical Eng. & Systems 2024-09-12 Mohammed Alsaafin , Musab Alsheikh , Saeed Anwar , Muhammad Usman

No-reference image quality assessment (NR-IQA) is a fundamental yet challenging task in low-level computer vision community. The difficulty is particularly pronounced for the limited information, for which the corresponding reference for…

Computer Vision and Pattern Recognition · Computer Science 2018-04-06 Kwan-Yee Lin , Guanxiang Wang

In this paper, we propose a no-reference (NR) image quality assessment (IQA) method via feature level pseudo-reference (PR) hallucination. The proposed quality assessment framework is grounded on the prior models of natural image…

Image and Video Processing · Electrical Eng. & Systems 2022-10-26 Baoliang Chen , Lingyu Zhu , Chenqi Kong , Hanwei Zhu , Shiqi Wang , Zhu Li

Traditional deep neural network (DNN)-based image quality assessment (IQA) models leverage convolutional neural networks (CNN) or Transformer to learn the quality-aware feature representation, achieving commendable performance on natural…

Computer Vision and Pattern Recognition · Computer Science 2024-08-06 Puyi Wang , Wei Sun , Zicheng Zhang , Jun Jia , Yanwei Jiang , Zhichao Zhang , Xiongkuo Min , Guangtao Zhai

Blind image quality assessment (IQA) in the wild, which assesses the quality of images with complex authentic distortions and no reference images, presents significant challenges. Given the difficulty in collecting large-scale training…

Computer Vision and Pattern Recognition · Computer Science 2026-03-11 Honghao Fu , Yufei Wang , Wenhan Yang , Alex C. Kot , Bihan Wen

Image Quality Assessment (IQA) is a critical task in a wide range of applications but remains challenging due to the subjective nature of human perception and the complexity of real-world image distortions. This study proposes MetaQAP, a…

Computer Vision and Pattern Recognition · Computer Science 2025-10-17 Nisar Ahmed , Gulshan Saleem , Nazik Alturki , Nada Alasbali

Recent advancements in image quality assessment (IQA), driven by sophisticated deep neural network designs, have significantly improved the ability to approach human perceptions. However, most existing methods are obsessed with fitting the…

Computer Vision and Pattern Recognition · Computer Science 2025-08-26 Shunyu Yao , Ming Liu , Zhilu Zhang , Zhaolin Wan , Zhilong Ji , Jinfeng Bai , Wangmeng Zuo

Assessing the visual quality of video game graphics presents unique challenges due to the absence of reference images and the distinct types of distortions, such as aliasing, texture blur, and geometry level of detail (LOD) issues, which…

Computer Vision and Pattern Recognition · Computer Science 2025-05-20 Kai Zhu , Vignesh Edithal , Le Zhang , Ilia Blank , Imran Junejo

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

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

Image quality assessment(IQA) is of increasing importance for image-based applications. Its purpose is to establish a model that can replace humans for accurately evaluating image quality. According to whether the reference image is…

Image and Video Processing · Electrical Eng. & Systems 2022-01-12 Lanjiang Wang

Image Quality Assessment (IQA) with references plays an important role in optimizing and evaluating computer vision tasks. Traditional methods assume that all pixels of the reference and test images are fully aligned. Such Aligned-Reference…

Computer Vision and Pattern Recognition · Computer Science 2024-12-30 Keke Zhang , Weiling Chen , Tiesong Zhao , Zhou Wang

Contrast change is an important factor that affects the quality of images. During image capturing, unfavorable lighting conditions can cause contrast change and visual quality loss. While various methods have been proposed to assess the…

Computer Vision and Pattern Recognition · Computer Science 2025-10-07 Mohammad-Ali Mahmoudpour , Saeed Mahmoudpour

In this work we investigate the use of deep learning for distortion-generic blind image quality assessment. We report on different design choices, ranging from the use of features extracted from pre-trained Convolutional Neural Networks…

Computer Vision and Pattern Recognition · Computer Science 2018-10-03 Simone Bianco , Luigi Celona , Paolo Napoletano , Raimondo Schettini

Recently, due to the strength of deep convolutional neural networks (CNN), many CNN-based image quality assessment (IQA) models have been studied. However, previous CNN-based IQA models likely have yet to utilize the characteristics of the…

Computer Vision and Pattern Recognition · Computer Science 2020-10-19 Soomin Seo , Sehwan Ki , Munchurl Kim

Estimating quality of transmitted speech is known to be a non-trivial task. While traditionally, test participants are asked to rate the quality of samples; nowadays, automated methods are available. These methods can be divided into: 1)…

Sound · Computer Science 2021-12-14 H. Tilkorn , G. Mittag , S. Möller