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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,…

计算机视觉与模式识别 · 计算机科学 2026-04-16 Koffi Titus Sergio Aglin , Anthony K. Muchiri , Celestin Nkundineza

This paper presents a high-performance general-purpose no-reference (NR) image quality assessment (IQA) method based on image entropy. The image features are extracted from two domains. In the spatial domain, the mutual information between…

计算机视觉与模式识别 · 计算机科学 2018-12-31 Xiaoqiao Chen , Qingyi Zhang , Manhui Lin , Guangyi Yang , Chu He

No-reference image quality assessment (NR-IQA) aims to quantify how humans perceive visual distortions of digital images without access to their undistorted references. NR-IQA models are extensively studied in computational vision, and are…

计算机视觉与模式识别 · 计算机科学 2022-10-04 Weixia Zhang , Dingquan Li , Xiongkuo Min , Guangtao Zhai , Guodong Guo , Xiaokang Yang , Kede Ma

Contrast change is an important factor that affects the quality of images. During image capturing, unfavorable lighting conditions can cause contrast change and visual quality loss. While various methods have been proposed to assess the…

计算机视觉与模式识别 · 计算机科学 2025-10-07 Mohammad-Ali Mahmoudpour , Saeed Mahmoudpour

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…

计算机视觉与模式识别 · 计算机科学 2024-09-12 Ronghua Liao , Chen Hui , Lang Yuan , Haiqi Zhu , Feng Jiang

Image Quality Assessment (IQA) has long been a research hotspot in the field of image processing, especially No-Reference Image Quality Assessment (NR-IQA). Due to the powerful feature extraction ability, existing Convolution Neural Network…

计算机视觉与模式识别 · 计算机科学 2023-12-13 Jinsong Shi , Pan Gao , Jie Qin

The no-reference image quality assessment is a challenging domain that addresses estimating image quality without the original reference. We introduce an improved mechanism to extract local and non-local information from images via…

图像与视频处理 · 电气工程与系统科学 2024-09-12 Mohammed Alsaafin , Musab Alsheikh , Saeed Anwar , Muhammad Usman

Objective image quality evaluation is a challenging task, which aims to measure the quality of a given image automatically. According to the availability of the reference images, there are Full-Reference and No-Reference IQA tasks,…

计算机视觉与模式识别 · 计算机科学 2022-03-24 Chao Zeng , Sam Kwong

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

Recently, image quality assessment (IQA) has achieved remarkable progress with the success of deep learning. However, the strict pre-condition of full-reference (FR) methods has limited its application in real scenarios. And the…

图像与视频处理 · 电气工程与系统科学 2021-09-17 Jingyu Guo , Wei Wang , Wenming Yang , Qingmin Liao , Jie Zhou

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

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

Quality assessment of videos is crucial for many computer graphics applications, including video games, virtual reality, and augmented reality, where visual performance has a significant impact on user experience. When test videos cannot be…

计算机视觉与模式识别 · 计算机科学 2025-10-16 Sipeng Yang , Jiayu Ji , Qingchuan Zhu , Zhiyao Yang , Xiaogang Jin

Recent advancements in the field of No-Reference Image Quality Assessment (NR-IQA) using deep learning techniques demonstrate high performance across multiple open-source datasets. However, such models are typically very large and complex…

计算机视觉与模式识别 · 计算机科学 2024-09-09 Nasim Jamshidi Avanaki , Abhijay Ghildyal , Nabajeet Barman , Saman Zadtootaghaj

With the rising demand for high-resolution (HR) images, No-Reference Image Quality Assessment (NR-IQA) gains more attention, as it can ecaluate image quality in real-time on mobile devices and enhance user experience. However, existing…

计算机视觉与模式识别 · 计算机科学 2024-09-04 Zewen Chen , Sunhan Xu , Yun Zeng , Haochen Guo , Jian Guo , Shuai Liu , Juan Wang , Bing Li , Weiming Hu , Dehua Liu , Hesong Li

Image quality assessment (IQA) focuses on the perceptual visual quality of images, playing a crucial role in downstream tasks such as image reconstruction, compression, and generation. The rapid advancement of multi-modal large language…

计算机视觉与模式识别 · 计算机科学 2025-05-26 Weiqi Li , Xuanyu Zhang , Shijie Zhao , Yabin Zhang , Junlin Li , Li Zhang , Jian Zhang

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…

计算机视觉与模式识别 · 计算机科学 2016-09-05 Haoyi Liang , Daniel S. Weller

Full-reference (FR) image quality assessment (IQA) models assume a high quality "pristine" image as a reference against which to measure perceptual image quality. In many applications, however, the assumption that the reference image is of…

图像与视频处理 · 电气工程与系统科学 2018-02-12 Xiangxu Yu , Christos G. Bampis , Praful Gupta , Alan C. Bovik

Full-reference image quality assessment (FR-IQA) models generally operate by measuring the visual differences between a degraded image and its reference. However, existing FR-IQA models including both the classical ones (eg, PSNR and SSIM)…

计算机视觉与模式识别 · 计算机科学 2024-08-20 Kang Xiao , Xu Wang , Yulin He , Baoliang Chen , Xuelin Shen

Contemporary no-reference image quality assessment (NR-IQA) models can effectively quantify perceived image quality, often achieving strong correlations with human perceptual scores on standard IQA benchmarks. Yet, limited efforts have been…

计算机视觉与模式识别 · 计算机科学 2025-01-16 Weixia Zhang , Dingquan Li , Guangtao Zhai , Xiaokang Yang , Kede Ma