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Image Quality Assessment (IQA) and Image Aesthetic Assessment (IAA) aim to simulate human subjective perception of image visual quality and aesthetic appeal. Despite distinct learning objectives, they have underlying interconnectedness due…

Computer Vision and Pattern Recognition · Computer Science 2025-07-15 Hantao Zhou , Longxiang Tang , Rui Yang , Guanyi Qin , Yan Zhang , Yutao Li , Xiu Li , Runze Hu , Guangtao Zhai

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

This tutorial provides the audience with the basic theories, methodologies, and current progresses of image quality assessment (IQA). From an actionable perspective, we will first revisit several subjective quality assessment methodologies,…

Computer Vision and Pattern Recognition · Computer Science 2021-10-20 Kede Ma , Yuming Fang

Generative models for image restoration, enhancement, and generation have significantly improved the quality of the generated images. Surprisingly, these models produce more pleasant images to the human eye than other methods, yet, they may…

Image and Video Processing · Electrical Eng. & Systems 2022-04-28 Marcos V. Conde , Maxime Burchi , Radu Timofte

We introduce a Depicted image Quality Assessment method (DepictQA), overcoming the constraints of traditional score-based methods. DepictQA allows for detailed, language-based, human-like evaluation of image quality by leveraging…

Computer Vision and Pattern Recognition · Computer Science 2024-07-16 Zhiyuan You , Zheyuan Li , Jinjin Gu , Zhenfei Yin , Tianfan Xue , Chao Dong

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

Image quality assessment (IQA) is traditionally classified into full-reference (FR) IQA and no-reference (NR) IQA according to whether the original image is required. Although NR-IQA is widely used in practical applications, room for…

Computer Vision and Pattern Recognition · Computer Science 2016-09-05 Haoyi Liang , Daniel S. Weller

In no-reference image quality assessment (NR-IQA), the challenge of limited dataset sizes hampers the development of robust and generalizable models. Conventional methods address this issue by utilizing large datasets to extract rich…

Computer Vision and Pattern Recognition · Computer Science 2024-10-08 Daekyu Kwon , Dongyoung Kim , Sehwan Ki , Younghyun Jo , Hyong-Euk Lee , Seon Joo Kim

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

Accurate and efficient Video Quality Assessment (VQA) has long been a key research challenge. Current mainstream VQA methods typically improve performance by pretraining on large-scale classification datasets (e.g., ImageNet, Kinetics-400),…

Computer Vision and Pattern Recognition · Computer Science 2025-10-10 Yachun Mi , Yu Li , Yanting Li , Chen Hui , Tong Zhang , Zhixuan Li , Chenyue Song , Wei Yang Bryan Lim , Shaohui Liu

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

While abundant research has been conducted on improving high-level visual understanding and reasoning capabilities of large multimodal models~(LMMs), their visual quality assessment~(IQA) ability has been relatively under-explored. Here we…

Computer Vision and Pattern Recognition · Computer Science 2024-02-05 Hanwei Zhu , Xiangjie Sui , Baoliang Chen , Xuelin Liu , Peilin Chen , Yuming Fang , Shiqi Wang

Traditional deep neural network (DNN)-based image quality assessment (IQA) models leverage convolutional neural networks (CNN) or Transformer to learn the quality-aware feature representation, achieving commendable performance on natural…

Computer Vision and Pattern Recognition · Computer Science 2024-08-06 Puyi Wang , Wei Sun , Zicheng Zhang , Jun Jia , Yanwei Jiang , Zhichao Zhang , Xiongkuo Min , Guangtao Zhai

Image quality assessment (IQA) is very important for both end-users and service providers since a high-quality image can significantly improve the user's quality of experience (QoE) and also benefit lots of computer vision algorithms. Most…

Multimedia · Computer Science 2023-04-28 Wei Sun , Xiongkuo Min , Danyang Tu , Guangtao Zhai , Siwei Ma

The visual quality of an image is confounded by a number of intertwined factors including its semantic content, distortion characteristics and appearance properties such as brightness, contrast, sharpness, and colourfulness. Distilling high…

Computer Vision and Pattern Recognition · Computer Science 2024-12-11 Fei Zhou , Tianhao Gu , Zhicong Huang , Guoping Qiu

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

Existing Image Quality Assessment (IQA) methods achieve remarkable success in analyzing quality for overall image, but few works explore quality analysis for Regions of Interest (ROIs). The quality analysis of ROIs can provide fine-grained…

Computer Vision and Pattern Recognition · Computer Science 2024-11-18 Zewen Chen , Juan Wang , Wen Wang , Sunhan Xu , Hang Xiong , Yun Zeng , Jian Guo , Shuxun Wang , Chunfeng Yuan , Bing Li , Weiming Hu

Image quality assessment (IQA) plays a critical role in optimizing radiation dose and developing novel medical imaging techniques in computed tomography (CT). Traditional IQA methods relying on hand-crafted features have limitations in…

Image and Video Processing · Electrical Eng. & Systems 2023-11-15 Tao Song , Ruizhi Hou , Lisong Dai , Lei Xiang

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

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