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Image Quality Assessment (IQA) is a long-standing problem in computer vision. Previous methods typically focus on predicting numerical scores without explanation or providing low-level descriptions lacking precise scores. Recent…

Computer Vision and Pattern Recognition · Computer Science 2026-01-16 Guoqiang Liang , Jianyi Wang , Zhonghua Wu , Shangchen Zhou

Purpose: Reliable image quality assessment is crucial for evaluating new motion correction methods for magnetic resonance imaging. In this work, we compare the performance of commonly used reference-based and reference-free image quality…

Medical Physics · Physics 2025-06-18 Elisa Marchetto , Hannah Eichhorn , Daniel Gallichan , Julia A. Schnabel , Melanie Ganz

Performance of blind image quality assessment (BIQA) models has been significantly boosted by end-to-end optimization of feature engineering and quality regression. Nevertheless, due to the distributional shift between images simulated in…

Computer Vision and Pattern Recognition · Computer Science 2021-04-07 Weixia Zhang , Kede Ma , Guangtao Zhai , Xiaokang Yang

Over the past decades, numerous Image Quality Assessment (IQA) models have emerged, aiming to predict the perceptual quality of images. However, individual models are often biased toward certain types of image content or distortions,…

Computer Vision and Pattern Recognition · Computer Science 2026-05-29 Zhongling Wang , Raymond Zhou , Shahrukh Athar , Wenbo Yang , Zhou Wang

Image quality assessment (IQA) has long been a fundamental challenge in image understanding. In recent years, deep learning-based IQA methods have shown promising performance. However, the lack of large amounts of labeled data in the IQA…

Computer Vision and Pattern Recognition · Computer Science 2024-07-08 Jinsong Shi , Pan Gao , Xiaojiang Peng , Jie Qin

Synthetic X-ray angiographies generated by modern generative models hold great potential to reduce the use of contrast agents in vascular interventional procedures. However, low-quality synthetic angiographies can significantly increase…

Computer Vision and Pattern Recognition · Computer Science 2025-08-14 Bo Wang , De-Xing Huang , Xiao-Hu Zhou , Mei-Jiang Gui , Nu-Fang Xiao , Jian-Long Hao , Ming-Yuan Liu , Zeng-Guang Hou

The rapid progress of multi-modal large language models (MLLMs) has boosted the task of image quality assessment (IQA). However, a key challenge arises from the inherent mismatch between the discrete token outputs of MLLMs and the…

Computer Vision and Pattern Recognition · Computer Science 2025-11-12 Zhenchen Tang , Songlin Yang , Bo Peng , Zichuan Wang , Jing Dong

In practical media distribution systems, visual content usually undergoes multiple stages of quality degradation along the delivery chain, but the pristine source content is rarely available at most quality monitoring points along the chain…

Image and Video Processing · Electrical Eng. & Systems 2021-10-29 Shahrukh Athar , Zhou Wang

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

UHD images, typically with resolutions equal to or higher than 4K, pose a significant challenge for efficient image quality assessment (IQA) algorithms, as adopting full-resolution images as inputs leads to overwhelming computational…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Wei Sun , Weixia Zhang , Yuqin Cao , Linhan Cao , Jun Jia , Zijian Chen , Zicheng Zhang , Xiongkuo Min , Guangtao Zhai

Assessing the quality of artificial intelligence-generated images (AIGIs) plays a crucial role in their application in real-world scenarios. However, traditional image quality assessment (IQA) algorithms primarily focus on low-level visual…

Computer Vision and Pattern Recognition · Computer Science 2024-12-23 Yu Tian , Yixuan Li , Baoliang Chen , Hanwei Zhu , Shiqi Wang , Sam Kwong

Recent years have witnessed the rapid development of image storage and transmission systems, in which image compression plays an important role. Generally speaking, image compression algorithms are developed to ensure good visual quality at…

Computer Vision and Pattern Recognition · Computer Science 2022-06-09 Zicheng Zhang , Wei Sun , Wei Wu , Ying Chen , Xiongkuo Min , Guangtao Zhai

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

Objective:To develop a no-reference image quality assessment method using automated distortion recognition to boost MRI-guided radiotherapy precision.Methods:We analyzed 106,000 MR images from 10 patients with liver metastasis,captured with…

Image and Video Processing · Electrical Eng. & Systems 2024-12-11 Zilin Wang , Shengqi Chen , Jianrong Dai , Shirui Qin , Ying Cao , Ruiao Zhao , Guohua Wu , Yuan Tang , Jiayun Chen

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

Image Super-Resolution (SR) techniques improve visual quality by enhancing the spatial resolution of images. Quality evaluation metrics play a critical role in comparing and optimizing SR algorithms, but current metrics achieve only limited…

Image and Video Processing · Electrical Eng. & Systems 2020-12-17 Tiesong Zhao , Yuting Lin , Yiwen Xu , Weiling Chen , Zhou Wang

Although subjective tests are most accurate image/video quality assessment tools, they are extremely time demanding. In the past two decades, a variety of objective tools, such as SSIM, IW-SSIM, SPSIM, FSIM, etc., have been devised, that…

Image and Video Processing · Electrical Eng. & Systems 2021-04-27 Majid Behzadpour , Mohammad Ghanbari

Image Quality Assessment (IQA) models are employed in many practical image and video processing pipelines to reduce storage, minimize transmission costs, and improve the Quality of Experience (QoE) of millions of viewers. These models are…

Computer Vision and Pattern Recognition · Computer Science 2025-07-24 Krishna Srikar Durbha , Asvin Kumar Venkataramanan , Rajesh Sureddi , Alan C. Bovik

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 recent years, Image Quality Assessment (IQA) for AI-generated images (AIGI) has advanced rapidly; however, existing methods primarily target portraits and artistic images, lacking a systematic evaluation of interior scenes. We introduce…

Computer Vision and Pattern Recognition · Computer Science 2025-12-05 Yuan Gao , Jin Song