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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

Omnidirectional images and videos can provide immersive experience of real-world scenes in Virtual Reality (VR) environment. We present a perceptual omnidirectional image quality assessment (IQA) study in this paper since it is extremely…

Computer Vision and Pattern Recognition · Computer Science 2022-07-07 Huiyu Duan , Guangtao Zhai , Xiongkuo Min , Yucheng Zhu , Yi Fang , Xiaokang Yang

Image quality assessment (IQA) is an important research topic for understanding and improving visual experience. The current state-of-the-art IQA methods are based on convolutional neural networks (CNNs). The performance of CNN-based models…

Computer Vision and Pattern Recognition · Computer Science 2021-08-16 Junjie Ke , Qifei Wang , Yilin Wang , Peyman Milanfar , Feng Yang

Recent advances in reasoning-induced image quality assessment (IQA) have demonstrated the power of reinforcement learning to rank (RL2R) for training vision-language models (VLMs) to assess perceptual quality. However, existing approaches…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Xiangyong Chen , Xiaochuan Lin , Haoran Liu , Xuan Li , Yichen Su , Xiangwei Guo

Recent years have witnessed remarkable achievements in perceptual image restoration (IR), creating an urgent demand for accurate image quality assessment (IQA), which is essential for both performance comparison and algorithm optimization.…

Image and Video Processing · Electrical Eng. & Systems 2026-04-01 Xiangfei Sheng , Xiaofeng Pan , Zhichao Yang , Pengfei Chen , Leida Li

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

In this paper, we present a novel method of no-reference image quality assessment (NR-IQA), which is to predict the perceptual quality score of a given image without using any reference image. The proposed method harnesses three functions…

Computer Vision and Pattern Recognition · Computer Science 2017-05-30 Diqi Chen , Yizhou Wang , Tianfu Wu , Wen Gao

Blind image quality assessment (BIQA) remains challenging due to the diversity of distortion and image content variation, which complicate the distortion patterns crossing different scales and aggravate the difficulty of the regression…

Image and Video Processing · Electrical Eng. & Systems 2023-11-06 Qingyi Pan , Ning Guo , Letu Qingge , Jingyi Zhang , Pei Yang

Image quality plays an important role in the performance of deep neural networks (DNNs) that have been widely shown to exhibit sensitivity to changes in imaging conditions. Conventional image quality assessment (IQA) seeks to measure and…

Computer Vision and Pattern Recognition · Computer Science 2025-08-06 Nathan Drenkow , Mathias Unberath

Image quality assessment (IQA) is the key factor for the fast development of image restoration (IR) algorithms. The most recent IR methods based on Generative Adversarial Networks (GANs) have achieved significant improvement in visual…

Image and Video Processing · Electrical Eng. & Systems 2020-09-29 Jinjin Gu , Haoming Cai , Haoyu Chen , Xiaoxing Ye , Jimmy Ren , Chao Dong

The widespread image applications have greatly promoted the vision-based tasks, in which the Image Quality Assessment (IQA) technique has become an increasingly significant issue. For user enjoyment in multimedia systems, the IQA exploits…

Computer Vision and Pattern Recognition · Computer Science 2022-05-10 Weiling Chen , Rongfu Lin , Honggang Liao , Tiesong Zhao , Ke Gu , Patrick Le Callet

Image quality assessment (IQA) aims to assess the perceptual quality of images. The outputs of the IQA algorithms are expected to be consistent with human subjective perception. In image restoration and enhancement tasks, images generated…

Computer Vision and Pattern Recognition · Computer Science 2021-04-26 Shuwei Shi , Qingyan Bai , Mingdeng Cao , Weihao Xia , Jiahao Wang , Yifan Chen , Yujiu Yang

An important scenario for image quality assessment (IQA) is to evaluate image restoration (IR) algorithms. The state-of-the-art approaches adopt a full-reference paradigm that compares restored images with their corresponding…

Image and Video Processing · Electrical Eng. & Systems 2021-08-24 Heliang Zheng , Huan Yang , Jianlong Fu , Zheng-Jun Zha , Jiebo Luo

While recent advancements in large multimodal models (LMMs) have significantly improved their abilities in image quality assessment (IQA) relying on absolute quality rating, how to transfer reliable relative quality comparison outputs to…

Computer Vision and Pattern Recognition · Computer Science 2024-05-30 Hanwei Zhu , Haoning Wu , Yixuan Li , Zicheng Zhang , Baoliang Chen , Lingyu Zhu , Yuming Fang , Guangtao Zhai , Weisi Lin , Shiqi Wang

Objective image quality evaluation is a challenging task, which aims to measure the quality of a given image automatically. According to the availability of the reference images, there are Full-Reference and No-Reference IQA tasks,…

Computer Vision and Pattern Recognition · Computer Science 2022-03-24 Chao Zeng , Sam Kwong

Computational models for blind image quality assessment (BIQA) are typically trained in well-controlled laboratory environments with limited generalizability to realistically distorted images. Similarly, BIQA models optimized for images…

Computer Vision and Pattern Recognition · Computer Science 2020-05-21 Weixia Zhang , Kede Ma , Guangtao Zhai , Xiaokang Yang

Image Quality Assessment (IQA) has long been a research hotspot in the field of image processing, especially No-Reference Image Quality Assessment (NR-IQA). Due to the powerful feature extraction ability, existing Convolution Neural Network…

Computer Vision and Pattern Recognition · Computer Science 2023-12-13 Jinsong Shi , Pan Gao , Jie Qin

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

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

Blind or no-reference image quality assessment (NR-IQA) is a fundamental, unsolved, and yet challenging problem due to the unavailability of a reference image. It is vital to the streaming and social media industries that impact billions of…

Computer Vision and Pattern Recognition · Computer Science 2020-06-09 S. Alireza Golestaneh , Kris Kitani
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