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The annotation of blind image quality assessment (BIQA) is labor-intensive and time-consuming, especially for authentic images. Training on synthetic data is expected to be beneficial, but synthetically trained models often suffer from poor…

Computer Vision and Pattern Recognition · Computer Science 2024-05-08 Aobo Li , Jinjian Wu , Yongxu Liu , Leida Li

This paper explores how the image quality assessment (IQA) task affects the cognitive processes of people from the perspective of pupil size and studies the relationship between pupil size and image quality. Specifically, we first invited…

Image and Video Processing · Electrical Eng. & Systems 2025-05-21 Yixuan Gao , Xiongkuo Min , Guangtao Zhai

Computer graphics images (CGIs) are artificially generated by means of computer programs and are widely perceived under various scenarios, such as games, streaming media, etc. In practice, the quality of CGIs consistently suffers from poor…

Computer Vision and Pattern Recognition · Computer Science 2023-11-02 Zicheng Zhang , Wei Sun , Yingjie Zhou , Jun Jia , Zhichao Zhang , Jing Liu , Xiongkuo Min , Guangtao Zhai

Image quality that is consistent with human opinion is assessed by a perceptual image quality assessment (IQA) that defines/utilizes a computational model. A good model should take effectiveness and efficiency into consideration, but most…

Computer Vision and Pattern Recognition · Computer Science 2018-10-17 Huizhen Jia , Lu Zhang , Tonghan Wang

Action quality assessment (AQA) applies computer vision to quantitatively assess the performance or execution of a human action. Current AQA approaches are end-to-end neural models, which lack transparency and tend to be biased because they…

Computer Vision and Pattern Recognition · Computer Science 2024-05-27 Lauren Okamoto , Paritosh Parmar

Existing AGIQA models typically estimate image quality by measuring and aggregating the similarities between image embeddings and text embeddings derived from multi-grade quality descriptions. Although effective, we observe that such…

Computer Vision and Pattern Recognition · Computer Science 2025-12-30 Zhicheng Liao , Baoliang Chen , Hanwei Zhu , Lingyu Zhu , Shiqi Wang , Weisi Lin

Positron Emission Tomography / Computed Tomography (PET/CT) plays a critical role in medical imaging, combining functional and anatomical information to aid in accurate diagnosis. However, image quality degradation due to noise, compression…

Image and Video Processing · Electrical Eng. & Systems 2025-06-26 Siqiao Li , Chen Hui , Wei Zhang , Rui Liang , Chenyue Song , Feng Jiang , Haiqi Zhu , Zhixuan Li , Hong Huang , Xiang Li

No-Reference Image Quality Assessment (NR-IQA) aims to assess the perceptual quality of images in accordance with human subjective perception. Unfortunately, existing NR-IQA methods are far from meeting the needs of predicting accurate…

Computer Vision and Pattern Recognition · Computer Science 2022-04-22 Sidi Yang , Tianhe Wu , Shuwei Shi , Shanshan Lao , Yuan Gong , Mingdeng Cao , Jiahao Wang , Yujiu Yang

In recent years, the rapid advancement of Artificial Intelligence Generated Content (AIGC) has attracted widespread attention. Among the AIGC, AI generated omnidirectional images hold significant potential for Virtual Reality (VR) and…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Liu Yang , Huiyu Duan , Long Teng , Yucheng Zhu , Xiaohong Liu , Menghan Hu , Xiongkuo Min , Guangtao Zhai , Patrick Le Callet

Blind 360{\deg}image quality assessment (IQA) aims to predict perceptual quality for panoramic images without a pristine reference. Unlike conventional planar images, 360{\deg}content in immersive environments restricts viewers to a limited…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Yujia Wang , Yuyan Li , Jiuming Liu , Fang-Lue Zhang , Xinhu Zheng , Neil. A Dodgson

One major problem of objective Image Quality Assessment (IQA) methods is the lack of linearity of their quality estimates with respect to scores expressed by human subjects. For this reason, usually IQA metrics undergo a calibration process…

Computer Vision and Pattern Recognition · Computer Science 2022-05-25 Elio D. Di Claudio , Paolo Giannitrapani , Giovanni Jacovitti

Image quality scoring and interpreting are two fundamental components of Image Quality Assessment (IQA). The former quantifies image quality, while the latter enables descriptive question answering about image quality. Traditionally, these…

Computer Vision and Pattern Recognition · Computer Science 2025-03-13 Zicheng Zhang , Haoning Wu , Ziheng Jia , Weisi Lin , Guangtao Zhai

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

Subjective perceptual image quality can be assessed in lab studies by human observers. Objective image quality assessment (IQA) refers to algorithms for estimation of the mean subjective quality ratings. Many such methods have been…

Computer Vision and Pattern Recognition · Computer Science 2019-08-20 Markus Wagner , Hanhe Lin , Shujun Li , Dietmar Saupe

Image quality assessment (IQA) serves as the golden standard for all models' performance in nearly all computer vision fields. However, it still suffers from poor out-of-distribution generalization ability and expensive training costs. To…

Computer Vision and Pattern Recognition · Computer Science 2024-10-11 Kai Liu , Ziqing Zhang , Wenbo Li , Renjing Pei , Fenglong Song , Xiaohong Liu , Linghe Kong , Yulun Zhang

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

The rapid expansion of mobile internet has resulted in a substantial increase in user-generated content (UGC) images, thereby making the thorough assessment of UGC images both urgent and essential. Recently, multimodal large language models…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Mingxing Li , Rui Wang , Lei Sun , Yancheng Bai , Xiangxiang Chu

Blind image quality assessment (BIQA) is a task that predicts the perceptual quality of an image without its reference. Research on BIQA attracts growing attention due to the increasing amount of user-generated images and emerging mobile…

Image and Video Processing · Electrical Eng. & Systems 2023-03-24 Zhanxuan Mei , Yun-Cheng Wang , Xingze He , Yong Yan , C. -C. Jay Kuo

Blind image quality assessment (BIQA) remains a very challenging problem due to the unavailability of a reference image. Deep learning based BIQA methods have been attracting increasing attention in recent years, yet it remains a difficult…

Computer Vision and Pattern Recognition · Computer Science 2017-12-06 Hui Zeng , Lei Zhang , Alan C. Bovik

Super-resolution (SR), a classical inverse problem in computer vision, is inherently ill-posed, inducing a distribution of plausible solutions for every input. However, the desired result is not simply the expectation of this distribution,…

Computer Vision and Pattern Recognition · Computer Science 2025-04-28 Fengjia Zhang , Samrudhdhi B. Rangrej , Tristan Aumentado-Armstrong , Afsaneh Fazly , Alex Levinshtein