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Generally, humans are more skilled at perceiving differences between high-quality (HQ) and low-quality (LQ) images than directly judging the quality of a single LQ image. This situation also applies to image quality assessment (IQA).…

计算机视觉与模式识别 · 计算机科学 2022-03-01 Guanghao Yin , Wei Wang , Zehuan Yuan , Chuchu Han , Wei Ji , Shouqian Sun , Changhu Wang

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

Self-supervised image denoising implies restoring the signal from a noisy image without access to the ground truth. State-of-the-art solutions for this task rely on predicting masked pixels with a fully-convolutional neural network. This…

计算机视觉与模式识别 · 计算机科学 2024-12-31 Mikhail Papkov , Pavel Chizhov , Leopold Parts

Image composition involves extracting a foreground object from one image and pasting it into another image through Image harmonization algorithms (IHAs), which aim to adjust the appearance of the foreground object to better match the…

计算机视觉与模式识别 · 计算机科学 2025-01-03 Zitong Xu , Huiyu Duan , Guangji Ma , Liu Yang , Jiarui Wang , Qingbo Wu , Xiongkuo Min , Guangtao Zhai , Patrick Le Callet

Omnidirectional image quality assessment (OIQA) aims to predict the perceptual quality of omnidirectional images that cover the whole 180$\times$360$^{\circ}$ viewing range of the visual environment. Here we propose a blind/no-reference…

多媒体 · 计算机科学 2023-02-27 Wei Zhou , Zhou Wang

Diffusion-based models have recently revolutionized image generation, achieving unprecedented levels of fidelity. However, consistent generation of high-quality images remains challenging partly due to the lack of conditioning mechanisms…

计算机视觉与模式识别 · 计算机科学 2025-03-18 Khaled Abud , Sergey Lavrushkin , Alexey Kirillov , Dmitriy Vatolin

To display low-quality broadcast content on high-resolution screens in full-screen format, the application of Super-Resolution (SR), a key consumer technology, is essential. Recently, SR methods have been developed that not only increase…

图像与视频处理 · 电气工程与系统科学 2025-11-19 Yongrok Kim , Junha Shin , Juhyun Lee , Hyunsuk Ko

UHD images, typically with resolutions equal to or higher than 4K, pose a significant challenge for efficient image quality assessment (IQA) algorithms, as adopting full-resolution images as inputs leads to overwhelming computational…

计算机视觉与模式识别 · 计算机科学 2024-09-04 Wei Sun , Weixia Zhang , Yuqin Cao , Linhan Cao , Jun Jia , Zijian Chen , Zicheng Zhang , Xiongkuo Min , Guangtao Zhai

\textbf{Purpose} This study aims to address the growing challenge of distinguishing computer-generated imagery (CGI) from authentic digital images in the RGB color space. Given the limitations of existing classification methods in handling…

计算机视觉与模式识别 · 计算机科学 2024-09-10 Preetu Mehta , Aman Sagar , Suchi Kumari

This paper proposes a new end-to-end trainable model for lossy image compression, which includes several novel components. The method incorporates 1) an adequate perceptual similarity metric; 2) saliency in the images; 3) a hierarchical…

图像与视频处理 · 电气工程与系统科学 2020-11-10 Yash Patel , Srikar Appalaraju , R. Manmatha

Visual (image, video) quality assessments can be modelled by visual features in different domains, e.g., spatial, frequency, and temporal domains. Perceptual mechanisms in the human visual system (HVS) play a crucial role in generation of…

图像与视频处理 · 电气工程与系统科学 2022-08-23 Junyong You , Zheng Zhang

The optimization objective of regression-based blind image quality assessment (IQA) models is to minimize the mean prediction error across the training dataset, which can lead to biased parameter estimation due to potential training data…

计算机视觉与模式识别 · 计算机科学 2023-10-24 Xiaoqi Wang , Jian Xiong , Hao Gao , Weisi Lin

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

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…

计算机视觉与模式识别 · 计算机科学 2022-04-22 Sidi Yang , Tianhe Wu , Shuwei Shi , Shanshan Lao , Yuan Gong , Mingdeng Cao , Jiahao Wang , Yujiu Yang

It has long been considered a significant problem to improve the visual quality of lossy image and video compression. Recent advances in computing power together with the availability of large training data sets has increased interest in…

多媒体 · 计算机科学 2017-03-30 Aaditya Prakash , Nick Moran , Solomon Garber , Antonella DiLillo , James Storer

The main challenge in applying state-of-the-art deep learning methods to predict image quality in-the-wild is the relatively small size of existing quality scored datasets. The reason for the lack of larger datasets is the massive resources…

计算机视觉与模式识别 · 计算机科学 2020-05-26 Hanhe Lin , Vlad Hosu , Dietmar Saupe

In this paper, we consider image quality assessment (IQA) as a measure of how images are amenable with respect to a given downstream task, or task amenability. When the task is performed using machine learning algorithms, such as a…

Image Quality Assessment (IQA) algorithms evaluate the perceptual quality of an image using evaluation scores that assess the similarity or difference between two images. We propose a new low-level feature based IQA technique, which applies…

多媒体 · 计算机科学 2017-12-04 Navaneeth K. Kottayil , Irene Cheng , Frederic Dufaux , Anup Basu

The emergent ecosystems of intelligent edge devices in diverse Internet of Things (IoT) applications, from automatic surveillance to precision agriculture, increasingly rely on recording and processing variety of image data. Due to resource…

计算机视觉与模式识别 · 计算机科学 2020-09-16 Prabuddha Chakraborty , Jonathan Cruz , Swarup Bhunia

Image quality assessment (IQA) algorithms aim to reproduce the human's perception of the image quality. The growing popularity of image enhancement, generation, and recovery models instigated the development of many methods to assess their…

图像与视频处理 · 电气工程与系统科学 2023-02-17 Segrey Kastryulin , Jamil Zakirov , Nicola Pezzotti , Dmitry V. Dylov