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Existing blind image quality assessment (BIQA) methods are mostly designed in a disposable way and cannot evolve with unseen distortions adaptively, which greatly limits the deployment and application of BIQA models in real-world scenarios.…

Multimedia · Computer Science 2021-04-30 Jianzhao Liu , Wei Zhou , Jiahua Xu , Xin Li , Shukun An , Zhibo Chen

Magnetic resonance imaging (MRI) is increasingly utilized for image-guided radiotherapy due to its outstanding soft-tissue contrast and lack of ionizing radiation. However, geometric distortions caused by gradient nonlinearity (GNL) limit…

It is well-known that there is no universal metric for image quality evaluation. In this case, distortion-specific metrics can be more reliable. The artifact imposed by image compression can be considered as a combination of various…

Image and Video Processing · Electrical Eng. & Systems 2024-02-05 S. Farhad Hosseini-Benvidi , Hossein Motamednia , Azadeh Mansouri , Mohammadreza Raei , Ahmad Mahmoudi-Aznaveh

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

This article identifies and addresses a fundamental bottleneck in data-driven 360-degree image quality assessment (IQA): the lack of intelligent, sample-level data selection. Hence, we propose a novel framework that introduces a critical…

Computer Vision and Pattern Recognition · Computer Science 2025-12-22 Abderrezzaq Sendjasni , Seif-Eddine Benkabou , Mohamed-Chaker Larabi

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 learning techniques have revolutionized the fields of image restoration and image quality assessment in recent years. While image restoration methods typically utilize synthetically distorted training data for training, deep quality…

Image and Video Processing · Electrical Eng. & Systems 2023-11-29 Hakan Emre Gedik , Abhinau K. Venkataramanan , Alan C. Bovik

A key problem in blind image quality assessment (BIQA) is how to effectively model the properties of human visual system in a data-driven manner. In this paper, we propose a simple and efficient BIQA model based on a novel framework which…

Computer Vision and Pattern Recognition · Computer Science 2019-03-12 Da Pan , Ping Shi , Ming Hou , Zefeng Ying , Sizhe Fu , Yuan Zhang

The image Super-Resolution (SR) technique has greatly improved the visual quality of images by enhancing their resolutions. It also calls for an efficient SR Image Quality Assessment (SR-IQA) to evaluate those algorithms or their generated…

Image and Video Processing · Electrical Eng. & Systems 2022-05-10 Keke Zhang , Tiesong Zhao , Weiling Chen , Yuzhen Niu , Jinsong Hu

Latest advances in Super-Resolution (SR) have been tested with general purpose images such as faces, landscapes and objects, mainly unused for the task of super-resolving Earth Observation (EO) images. In this research paper, we benchmark…

Computer Vision and Pattern Recognition · Computer Science 2022-10-17 David Berga , Pau Gallés , Katalin Takáts , Eva Mohedano , Laura Riordan-Chen , Clara Garcia-Moll , David Vilaseca , Javier Marín

Recently, convolutional neural network (CNN) has demonstrated significant success for image restoration (IR) tasks (e.g., image super-resolution, image deblurring, rain streak removal, and dehazing). However, existing CNN based models are…

Computer Vision and Pattern Recognition · Computer Science 2020-10-30 Feng Li , Runmin Cong , Huihui Bai , Yifan He , Yao Zhao , Ce Zhu

Despite significant progress in no-reference image quality assessment (NR-IQA), dataset biases and reliance on subjective labels continue to hinder their generalization performance. We propose HiRQA (Hierarchical Ranking and Quality…

Computer Vision and Pattern Recognition · Computer Science 2026-05-28 Vaishnav Ramesh , Haining Wang , Md Jahidul Islam

Recent years have witnessed the great success of convolutional neural network (CNN) based models in the field of computer vision. CNN is able to learn hierarchically abstracted features from images in an end-to-end training manner. However,…

Computer Vision and Pattern Recognition · Computer Science 2017-08-16 Xin Li , Zequn Jie , Jiashi Feng , Changsong Liu , Shuicheng Yan

The process of rendering high dynamic range (HDR) images to be viewed on conventional displays is called tone mapping. However, tone mapping introduces distortions in the final image which may lead to visual displeasure. To quantify these…

The statistical regularities of natural images, referred to as natural scene statistics, play an important role in no-reference image quality assessment. However, it has been widely acknowledged that screen content images (SCIs), which are…

Computer Vision and Pattern Recognition · Computer Science 2024-04-23 Baoliang Chen , Hanwei Zhu , Lingyu Zhu , Shiqi Wang , Sam Kwong

Reasoning-induced vision-language models (VLMs) advance image quality assessment (IQA) with textual reasoning, yet their scalar scores often lack sensitivity and collapse to a few values, so-called discrete collapse. We introduce ME-IQA, a…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Kanglong Fan , Tianhe Wu , Wen Wen , Jianzhao Liu , Le Yang , Yabin Zhang , Yiting Liao , Junlin Li , Li Zhang

Deep image prior (DIP) is a recently proposed technique for solving imaging inverse problems by fitting the reconstructed images to the output of an untrained convolutional neural network. Unlike pretrained feedforward neural networks, the…

Computer Vision and Pattern Recognition · Computer Science 2022-09-20 Kevin Zhang , Mingyang Xie , Maharshi Gor , Yi-Ting Chen , Yvonne Zhou , Christopher A. Metzler

Document image quality assessment (DIQA) is an important component for various applications, including optical character recognition (OCR), document restoration, and the evaluation of document image processing systems. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2025-09-23 Zhichao Ma , Fan Huang , Lu Zhao , Fengjun Guo , Guangtao Zhai , Xiongkuo Min

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

Convolutional Neural Network is good at image classification. However, it is found to be vulnerable to image quality degradation. Even a small amount of distortion such as noise or blur can severely hamper the performance of these CNN…

Computer Vision and Pattern Recognition · Computer Science 2020-08-07 Md Tahmid Hossain , Shyh Wei Teng , Dengsheng Zhang , Suryani Lim , Guojun Lu
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