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Video Quality Assessment (VQA), which intends to predict the perceptual quality of videos, has attracted increasing attention. Due to factors like motion blur or specific distortions, the quality of different regions in a video varies.…

Computer Vision and Pattern Recognition · Computer Science 2025-03-14 Yunpeng Qu , Kun Yuan , Qizhi Xie , Ming Sun , Chao Zhou , Jian Wang

In object recognition applications, object images usually appear with different quality levels. Practically, it is very important to indicate object image qualities for better application performance, e.g. filtering out low-quality object…

Computer Vision and Pattern Recognition · Computer Science 2020-05-28 Jing Lu , Baorui Zou , Zhanzhan Cheng , Shiliang Pu , Shuigeng Zhou , Yi Niu , Fei Wu

Deep-learning based techniques have contributed to the remarkable progress in the field of automatic image quality assessment (IQA). Existing IQA methods are designed to measure the quality of an image in terms of Mean Opinion Score (MOS)…

Image and Video Processing · Electrical Eng. & Systems 2022-06-15 Wook-Hyung Kim , Cheul-hee Hahm , Anant Baijal , Namuk Kim , Ilhyun Cho , Jayoon Koo

Performance of blind image quality assessment (BIQA) models has been significantly boosted by end-to-end optimization of feature engineering and quality regression. Nevertheless, due to the distributional shift between images simulated in…

Computer Vision and Pattern Recognition · Computer Science 2021-04-07 Weixia Zhang , Kede Ma , Guangtao Zhai , Xiaokang Yang

Virtual Reality (VR), which brings immersive experiences to viewers, has been gaining popularity in recent years. A key feature in VR systems is the use of omnidirectional content, which provides 360-degree views of scenes. In this work, we…

Image and Video Processing · Electrical Eng. & Systems 2019-11-18 Huyen T. T. Tran , Duc V. Nguyen , Nam Pham Ngoc , Trang H. Hoang , Truong Thu Huong , Truong Cong Thang

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

In this paper, we propose a Physical Imaging Guided perceptual framework for Underwater Image Quality Assessment (UIQA), termed PIGUIQA. First, we formulate UIQA as a comprehensive problem that considers the combined effects of direct…

Image and Video Processing · Electrical Eng. & Systems 2025-12-23 Weizhi Xian , Mingliang Zhou , Leong Hou U , Zhengguo Li

Image quality assessment (IQA) algorithm aims to quantify the human perception of image quality. Unfortunately, there is a performance drop when assessing the distortion images generated by generative adversarial network (GAN) with…

Computer Vision and Pattern Recognition · Computer Science 2022-04-25 Shanshan Lao , Yuan Gong , Shuwei Shi , Sidi Yang , Tianhe Wu , Jiahao Wang , Weihao Xia , Yujiu Yang

Understanding semantic information is an essential step in knowing what is being learned in both full-reference (FR) and no-reference (NR) image quality assessment (IQA) methods. However, especially for many severely distorted images, even…

Computer Vision and Pattern Recognition · Computer Science 2023-03-21 Pengxiang Xiao , Shuai He , Limin Liu , Anlong Ming

Image Quality Assessment (IQA) is a fundamental task in computer vision that has witnessed remarkable progress with deep neural networks. Inspired by the characteristics of the human visual system, existing methods typically use a…

Computer Vision and Pattern Recognition · Computer Science 2023-08-08 Chaofeng Chen , Jiadi Mo , Jingwen Hou , Haoning Wu , Liang Liao , Wenxiu Sun , Qiong Yan , Weisi Lin

In the research of video quality assessment (VQA), two-branch network has emerged as a promising solution. It decouples VQA with separate technical and aesthetic branches to measure the perception of low-level distortions and high-level…

Computer Vision and Pattern Recognition · Computer Science 2025-03-05 Guotao Shen , Ziheng Yan , Xin Jin , Longhai Wu , Jie Chen , Ilhyun Cho , Cheul-Hee Hahm

Completely blind video quality assessment (VQA) refers to a class of quality assessment methods that do not use any reference videos, human opinion scores or training videos from the target database to learn a quality model. The design of…

Image and Video Processing · Electrical Eng. & Systems 2024-06-25 Shankhanil Mitra , Rajiv Soundararajan

We introduce a novel Image Quality Assessment (IQA) dataset comprising 6073 UHD-1 (4K) images, annotated at a fixed width of 3840 pixels. Contrary to existing No-Reference (NR) IQA datasets, ours focuses on highly aesthetic photos of high…

Computer Vision and Pattern Recognition · Computer Science 2024-09-05 Vlad Hosu , Lorenzo Agnolucci , Oliver Wiedemann , Daisuke Iso , Dietmar Saupe

Image quality assessment (IQA) is inherently complex, as it reflects both the quantification and interpretation of perceptual quality rooted in the human visual system. Conventional approaches typically rely on fixed models to output scalar…

Computer Vision and Pattern Recognition · Computer Science 2025-10-02 Hanwei Zhu , Yu Tian , Keyan Ding , Baoliang Chen , Bolin Chen , Shiqi Wang , Weisi Lin

Image quality assessment is a fundamental problem in the field of image processing, and due to the lack of reference images in most practical scenarios, no-reference image quality assessment (NR-IQA), has gained increasing attention…

Computer Vision and Pattern Recognition · Computer Science 2023-05-17 Jinsong Shi , Pan Gao , Aljosa Smolic

Existing full-reference image quality assessment (FR-IQA) methods achieve high-precision evaluation by analysing feature differences between reference and distorted images. However, their performance is constrained by the quality of the…

Computer Vision and Pattern Recognition · Computer Science 2026-02-23 Xuting Lan , Mingliang Zhou , Xuekai Wei , Jielu Yan , Yueting Huang , Huayan Pu , Jun Luo , Weijia Jia

Image Quality Assessment (IQA) measures and predicts perceived image quality by human observers. Although recent studies have highlighted the critical influence that variations in the scale of an image have on its perceived quality, this…

Computer Vision and Pattern Recognition · Computer Science 2025-08-14 Vlad Hosu , Lorenzo Agnolucci , Daisuke Iso , Dietmar Saupe

Image Quality Assessment (IQA) is a long-standing problem in computer vision. Previous methods typically focus on predicting numerical scores without explanation or providing low-level descriptions lacking precise scores. Recent…

Computer Vision and Pattern Recognition · Computer Science 2026-01-16 Guoqiang Liang , Jianyi Wang , Zhonghua Wu , Shangchen Zhou

Blind video quality assessment (BVQA) is a highly challenging task due to the intrinsic complexity of video content and visual distortions, especially given the high popularity of social media videos, which originate from a wide range of…

Image and Video Processing · Electrical Eng. & Systems 2026-01-06 Wei Sun , Linhan Cao , Jun Jia , Zhichao Zhang , Zicheng Zhang , Xiongkuo Min , Guangtao Zhai

Deep networks have demonstrated promising results in the field of Image Quality Assessment (IQA). However, there has been limited research on understanding how deep models in IQA work. This study introduces a novel positional masked…

Computer Vision and Pattern Recognition · Computer Science 2023-11-07 Junyong You , Yuan Lin , Jari Korhonen