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Perceptual optimization is primarily driven by the fidelity objective, which enforces both semantic consistency and overall visual realism, while the adversarial objective provides complementary refinement by enhancing perceptual sharpness…

Computer Vision and Pattern Recognition · Computer Science 2025-09-26 Jiabei Zhang , Qi Wang , Siyu Wu , Du Chen , Tianhe Wu

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

Existing deep network-based full-reference image quality assessment (FR-IQA) models typically work by performing pairwise comparisons of deep features from the reference and distorted images. In this paper, we approach this problem from a…

Computer Vision and Pattern Recognition · Computer Science 2026-05-29 Zhen Zhang , Jielei Chu , Tian Zhang , Lin Ma , Fengmao Lv , Weide Liu , Tianrui Li , Yuming Fang

Quantifying uncertainty in a model's predictions is important as it enables the safety of an AI system to be increased by acting on the model's output in an informed manner. This is crucial for applications where the cost of an error is…

Computer Vision and Pattern Recognition · Computer Science 2021-05-31 Aria Khoshsirat

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

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

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

In this paper, we introduce an image quality assessment (IQA) method for pediatric T1- and T2-weighted MR images. IQA is first performed slice-wise using a nonlocal residual neural network (NR-Net) and then volume-wise by agglomerating the…

Computer Vision and Pattern Recognition · Computer Science 2020-05-26 Siyuan Liu , Kim-Han Thung , Weili Lin , Pew-Thian Yap , Dinggang Shen

We propose a deep bilinear model for blind image quality assessment (BIQA) that handles both synthetic and authentic distortions. Our model consists of two convolutional neural networks (CNN), each of which specializes in one distortion…

Image and Video Processing · Electrical Eng. & Systems 2019-07-08 Weixia Zhang , Kede Ma , Jia Yan , Dexiang Deng , Zhou Wang

The goal of full-reference image quality assessment (FR-IQA) is to predict the quality of an image as perceived by human observers with using its pristine, reference counterpart. In this study, we explore a novel, combined approach which…

Computer Vision and Pattern Recognition · Computer Science 2020-12-04 Domonkos Varga

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

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

The 4K content can deliver a more immersive visual experience to consumers due to the huge improvement of spatial resolution. However, existing blind image quality assessment (BIQA) methods are not suitable for the original and upscaled 4K…

Multimedia · Computer Science 2022-06-10 Wei Lu , Wei Sun , Xiongkuo Min , Wenhan Zhu , Quan Zhou , Jun He , Qiyuan Wang , Zicheng Zhang , Tao Wang , Guangtao Zhai

The goal of No-Reference Image Quality Assessment (NR-IQA) is to predict the perceptual quality of an image in line with its subjective evaluation. To put the NR-IQA models into practice, it is essential to study their potential loopholes…

Computer Vision and Pattern Recognition · Computer Science 2024-02-29 Yu Ran , Ao-Xiang Zhang , Mingjie Li , Weixuan Tang , Yuan-Gen Wang

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

Recent advances in Image Quality Assessment (IQA) have leveraged Multi-modal Large Language Models (MLLMs) to generate descriptive explanations. However, despite their strong visual perception modules, these models often fail to reliably…

Computer Vision and Pattern Recognition · Computer Science 2025-12-11 Yuan Li , Zitang Sun , Yen-Ju Chen , Shin'ya Nishida

The performance of many medical image analysis tasks are strongly associated with image data quality. When developing modern deep learning algorithms, rather than relying on subjective (human-based) image quality assessment (IQA), task…

Embodied AI has developed rapidly in recent years, but it is still mainly deployed in laboratories, with various distortions in the Real-world limiting its application. Traditionally, Image Quality Assessment (IQA) methods are applied to…

Computer Vision and Pattern Recognition · Computer Science 2025-10-15 Chunyi Li , Jiaohao Xiao , Jianbo Zhang , Farong Wen , Zicheng Zhang , Yuan Tian , Xiangyang Zhu , Xiaohong Liu , Zhengxue Cheng , Weisi Lin , Guangtao Zhai

Deep Neural Networks have been successfully used for the task of Visual Question Answering for the past few years owing to the availability of relevant large scale datasets. However these datasets are created in artificial settings and…

Computer Vision and Pattern Recognition · Computer Science 2020-06-17 Shaunak Halbe

The current state-of-the-art No-Reference Image Quality Assessment (NR-IQA) methods typically rely on feature extraction from upstream semantic backbone networks, assuming that all extracted features are relevant. However, we make a key…

Computer Vision and Pattern Recognition · Computer Science 2025-06-17 Xudong Li , Timin Gao , Runze Hu , Yan Zhang , Shengchuan Zhang , Xiawu Zheng , Jingyuan Zheng , Yunhang Shen , Ke Li , Yutao Liu , Pingyang Dai , Rongrong Ji