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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

We introduce NExT-QA, a rigorously designed video question answering (VideoQA) benchmark to advance video understanding from describing to explaining the temporal actions. Based on the dataset, we set up multi-choice and open-ended QA tasks…

Computer Vision and Pattern Recognition · Computer Science 2021-05-25 Junbin Xiao , Xindi Shang , Angela Yao , Tat-Seng Chua

As super-resolution (SR) techniques advance, we observe a growing distrust of evaluation metrics in recent SR research. An inconsistency often emerges between certain evaluation criteria and human perceptual preference. Although current SR…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Shaolin Su , Josep M. Rocafort , Danna Xue , David Serrano-Lozano , Lei Sun , Javier Vazquez-Corral

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…

Image and Video Processing · Electrical Eng. & Systems 2024-09-12 Mohammed Alsaafin , Musab Alsheikh , Saeed Anwar , Muhammad Usman

Quality assessment of in-the-wild videos is a challenging problem because of the absence of reference videos and shooting distortions. Knowledge of the human visual system can help establish methods for objective quality assessment of…

Multimedia · Computer Science 2019-10-08 Dingquan Li , Tingting Jiang , Ming Jiang

We consider the problem of capturing distortions arising from changes in frame rate as part of Video Quality Assessment (VQA). Variable frame rate (VFR) videos have become much more common, and streamed videos commonly range from 30 frames…

Image and Video Processing · Electrical Eng. & Systems 2022-05-24 Pavan C. Madhusudana , Neil Birkbeck , Yilin Wang , Balu Adsumilli , Alan C. Bovik

Accurately estimating humans' subjective feedback on video fluency, e.g., motion consistency and frame continuity, is crucial for various applications like streaming and gaming. Yet, it has long been overlooked, as prior arts have focused…

Computer Vision and Pattern Recognition · Computer Science 2026-03-30 Qizhi Xie , Kun Yuan , Yunpeng Qu , Ming Sun , Chao Zhou , Jihong Zhu

In recent years, Neural Radiance Fields (NeRF) have demonstrated significant advantages in representing and synthesizing 3D scenes. Explicit NeRF models facilitate the practical NeRF applications with faster rendering speed, and also…

Image and Video Processing · Electrical Eng. & Systems 2024-09-23 Yuke Xing , Qi Yang , Kaifa Yang , Yilin Xu , Zhu Li

This short paper proposes a new database - NeRF-QA - containing 48 videos synthesized with seven NeRF based methods, along with their perceived quality scores, resulting from subjective assessment tests; for the videos selection, both real…

Multimedia · Computer Science 2025-06-18 Pedro Martin , António Rodrigues , João Ascenso , Maria Paula Queluz

While there exists a wide variety of Low Dynamic Range (LDR) quality metrics, only a limited number of metrics are designed specifically for the High Dynamic Range (HDR) content. With the introduction of HDR video compression…

Image and Video Processing · Electrical Eng. & Systems 2018-03-14 Maryam Azimi , Amin Banitalebi-Dehkordi , Yuanyuan Dong , Mahsa T. Pourazad , Panos Nasiopoulos

The visual quality of point clouds has been greatly emphasized since the ever-increasing 3D vision applications are expected to provide cost-effective and high-quality experiences for users. Looking back on the development of point cloud…

Computer Vision and Pattern Recognition · Computer Science 2023-04-25 Zicheng Zhang , Wei Sun , Xiongkuo Min , Quan Zhou , Jun He , Qiyuan Wang , Guangtao Zhai

We propose a no-reference image quality assessment (NR-IQA) approach that learns from rankings (RankIQA). To address the problem of limited IQA dataset size, we train a Siamese Network to rank images in terms of image quality by using…

Computer Vision and Pattern Recognition · Computer Science 2017-07-27 Xialei Liu , Joost van de Weijer , Andrew D. Bagdanov

Recent works in video quality assessment (VQA) typically employ monolithic models that typically predict a single quality score for each test video. These approaches cannot provide diagnostic, interpretable feedback, offering little insight…

Computer Vision and Pattern Recognition · Computer Science 2025-12-03 Chen Feng , Tianhao Peng , Fan Zhang , David Bull

Non-reference metrics (NRMs) can assess the visual quality of images and videos without a reference, making them well-suited for the evaluation of user-generated content. Nonetheless, rate-distortion optimization (RDO) in video coding is…

Image and Video Processing · Electrical Eng. & Systems 2026-02-18 Xin Xiong , Samuel Fernández-Menduiña , Eduardo Pavez , Antonio Ortega , Neil Birkbeck , Balu Adsumilli

Text-to-video (T2V) synthesis has advanced rapidly, yet current evaluation metrics primarily capture visual quality and temporal consistency, offering limited insight into how synthetic videos perform in downstream tasks such as…

Computer Vision and Pattern Recognition · Computer Science 2025-07-04 Zecheng Zhao , Selena Song , Tong Chen , Zhi Chen , Shazia Sadiq , Yadan Luo

Face video quality assessment (FVQA) deserves to be explored in addition to general video quality assessment (VQA), as face videos are the primary content on social media platforms and human visual system (HVS) is particularly sensitive to…

Computer Vision and Pattern Recognition · Computer Science 2025-10-07 Sijing Wu , Yunhao Li , Ziwen Xu , Yixuan Gao , Huiyu Duan , Wei Sun , Guangtao Zhai

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…

Computer Vision and Pattern Recognition · Computer Science 2024-04-29 Chenxi Yang , Yujia Liu , Dingquan Li , Tingting Jiang

Video Quality Assessment (VQA) is evolving beyond single-number mean opinion score toward richer, multi-faceted evaluations of video content. In this paper, we present a large-scale multi-dimensional VQA dataset UltraVQA that encompasses…

Computer Vision and Pattern Recognition · Computer Science 2026-02-20 Boda Lin , Yongjie Zhu , Wenyu Qin , Meng Wang , Pengfei Wan

Text-driven video editing has recently experienced rapid development. Despite this, evaluating edited videos remains a considerable challenge. Current metrics tend to fail to align with human perceptions, and effective quantitative metrics…

Computer Vision and Pattern Recognition · Computer Science 2024-12-19 Shangkun Sun , Xiaoyu Liang , Songlin Fan , Wenxu Gao , Wei Gao

Perceptual video quality assessment plays a vital role in the field of video processing due to the existence of quality degradations introduced in various stages of video signal acquisition, compression, transmission and display. With the…

Multimedia · Computer Science 2024-02-07 Xiongkuo Min , Huiyu Duan , Wei Sun , Yucheng Zhu , Guangtao Zhai