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Digital images contain a lot of redundancies, therefore, compressions are applied to reduce the image size without the loss of reasonable image quality. The same become more prominent in the case of videos that contains image sequences and…

图像与视频处理 · 电气工程与系统科学 2021-12-30 Nisar Ahmed , Hafiz Muhammad Shahzad Asif , Hassan Khalid

While recent advancements in large multimodal models (LMMs) have significantly improved their abilities in image quality assessment (IQA) relying on absolute quality rating, how to transfer reliable relative quality comparison outputs to…

计算机视觉与模式识别 · 计算机科学 2024-05-30 Hanwei Zhu , Haoning Wu , Yixuan Li , Zicheng Zhang , Baoliang Chen , Lingyu Zhu , Yuming Fang , Guangtao Zhai , Weisi Lin , Shiqi Wang

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,…

计算机视觉与模式识别 · 计算机科学 2025-04-28 Fengjia Zhang , Samrudhdhi B. Rangrej , Tristan Aumentado-Armstrong , Afsaneh Fazly , Alex Levinshtein

Recent efforts have repurposed the Contrastive Language-Image Pre-training (CLIP) model for No-Reference Image Quality Assessment (NR-IQA) by measuring the cosine similarity between the image embedding and textual prompts such as "a good…

计算机视觉与模式识别 · 计算机科学 2026-02-03 Zhicheng Liao , Dongxu Wu , Zhenshan Shi , Sijie Mai , Hanwei Zhu , Lingyu Zhu , Yuncheng Jiang , Baoliang Chen

No-Reference Image Quality Assessment (NR-IQA) aims to predict image quality scores consistent with human perception without relying on pristine reference images, serving as a crucial component in various visual tasks. Ensuring the…

计算机视觉与模式识别 · 计算机科学 2024-04-29 Chenxi Yang , Yujia Liu , Dingquan Li , Tingting Jiang

With the rapid growth of User-Generated Content (UGC) exchanged between users and sharing platforms, the need for video quality assessment in the wild is increasingly evident. UGC is typically acquired using consumer devices and undergoes…

图像与视频处理 · 电气工程与系统科学 2025-03-14 Xinyi Wang , Angeliki Katsenou , David Bull

Development of perceptual image quality assessment (IQA) metrics has been of significant interest to computer vision community. The aim of these metrics is to model quality of an image as perceived by humans. Recent works in Full-reference…

图像与视频处理 · 电气工程与系统科学 2022-03-03 Saikat Dutta , Sourya Dipta Das , Nisarg A. Shah

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…

图像与视频处理 · 电气工程与系统科学 2021-08-24 Heliang Zheng , Huan Yang , Jianlong Fu , Zheng-Jun Zha , Jiebo Luo

Image Quality Assessment (IQA) remains an unresolved challenge in computer vision due to complex distortions, diverse image content, and limited data availability. Existing Blind IQA (BIQA) methods largely rely on extensive human…

计算机视觉与模式识别 · 计算机科学 2025-09-23 Xudong Li , Zihao Huang , Yan Zhang , Yunhang Shen , Ke Li , Xiawu Zheng , Liujuan Cao , Rongrong Ji

Existing medical image restoration (Med-IR) methods are typically modality-specific or degradation-specific, failing to generalize across the heterogeneous degradations encountered in clinical practice. We argue this limitation stems from…

计算机视觉与模式识别 · 计算机科学 2026-03-20 Jiyao Liu , Junzhi Ning , Wanying Qu , Lihao Liu , Chenglong Ma , Junjun He , Ningsheng Xu

Recently, increasing interest has been drawn in exploiting deep convolutional neural networks (DCNNs) for no-reference image quality assessment (NR-IQA). Despite of the notable success achieved, there is a broad consensus that training…

图像与视频处理 · 电气工程与系统科学 2020-04-14 Hancheng Zhu , Leida Li , Jinjian Wu , Weisheng Dong , Guangming Shi

Advances in image compression, storage, and display technologies have made high-quality images and videos widely accessible. At this level of quality, distinguishing between compressed and original content becomes difficult, highlighting…

计算机视觉与模式识别 · 计算机科学 2024-10-15 Michela Testolina , Mohsen Jenadeleh , Shima Mohammadi , Shaolin Su , Joao Ascenso , Touradj Ebrahimi , Jon Sneyers , Dietmar Saupe

Most modern No-Reference Image-Quality Assessment (NR-IQA) metrics are based on neural networks vulnerable to adversarial attacks. Attacks on such metrics lead to incorrect image/video quality predictions, which poses significant risks,…

图像与视频处理 · 电气工程与系统科学 2024-11-20 Ekaterina Shumitskaya , Mikhail Pautov , Dmitriy Vatolin , Anastasia Antsiferova

Learning-based image quality assessment (IQA) has made remarkable progress in the past decade, but nearly all consider the two key components -- model and data -- in isolation. Specifically, model-centric IQA focuses on developing…

计算机视觉与模式识别 · 计算机科学 2023-12-11 Peibei Cao , Dingquan Li , Kede Ma

Due to the existence of quality degradations introduced in various stages of visual signal acquisition, compression, transmission and display, image quality assessment (IQA) plays a vital role in image-based applications. According to…

图像与视频处理 · 电气工程与系统科学 2022-04-14 Dongxu Wang

Image compression has raised widespread interest recently due to its significant importance for multimedia storage and transmission. Meanwhile, a reliable image quality assessment (IQA) for compressed images can not only help to verify the…

计算机视觉与模式识别 · 计算机科学 2022-05-10 Jianzhao Liu , Xin Li , Yanding Peng , Tao Yu , Zhibo Chen

No-reference image quality assessment (NR-IQA) has received increasing attention in the IQA community since reference image is not always available. Real-world images generally suffer from various types of distortion. Unfortunately,…

图像与视频处理 · 电气工程与系统科学 2020-01-07 Fu-Zhao Ou , Yuan-Gen Wang , Jin Li , Guopu Zhu , Sam Kwong

Geometry quality assessment (GQA) of colorless point clouds is crucial for evaluating the performance of emerging point cloud-based solutions (e.g., watermarking, compression, and 3-Dimensional (3D) reconstruction). Unfortunately, existing…

计算机视觉与模式识别 · 计算机科学 2025-02-18 Zheng Li , Bingxu Xie , Chao Chu , Weiqing Li , Zhiyong Su

Light field image quality assessment (LF-IQA) plays a significant role due to its guidance to Light Field (LF) contents acquisition, processing and application. The LF can be represented as 4-D signal, and its quality depends on both…

图像与视频处理 · 电气工程与系统科学 2019-08-28 Ziyuan Luo , Wei Zhou , Likun Shi , Zhibo Chen

Document image quality assessment (DIQA) is an important and challenging problem in real applications. In order to predict the quality scores of document images, this paper proposes a novel no-reference DIQA method based on character…

计算机视觉与模式识别 · 计算机科学 2018-07-12 Hongyu Li , Fan Zhu , Junhua Qiu