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Video live streaming is gaining prevalence among video streaming services, especially for the delivery of popular sporting events. Many objective Video Quality Assessment (VQA) models have been developed to predict the perceptual quality of…

Image and Video Processing · Electrical Eng. & Systems 2021-06-17 Zaixi Shang , Joshua P. Ebenezer , Alan C. Bovik , Yongjun Wu , Hai Wei , Sriram Sethuraman

Video Quality Assessment (VQA) aims to evaluate video quality based on perceptual distortions and human preferences. Despite the promising performance of existing methods using Convolutional Neural Networks (CNNs) and Vision Transformers…

Computer Vision and Pattern Recognition · Computer Science 2025-05-07 Wei-Ting Chen , Yu-Jiet Vong , Yi-Tsung Lee , Sy-Yen Kuo , Qiang Gao , Sizhuo Ma , Jian Wang

AI-driven video generation techniques have made significant progress in recent years. However, AI-generated videos (AGVs) involving human activities often exhibit substantial visual and semantic distortions, hindering the practical…

Computer Vision and Pattern Recognition · Computer Science 2025-07-24 Zhichao Zhang , Wei Sun , Xinyue Li , Yunhao Li , Qihang Ge , Jun Jia , Zicheng Zhang , Zhongpeng Ji , Fengyu Sun , Shangling Jui , Xiongkuo Min , Guangtao Zhai

We present a no-reference video quality model and algorithm that delivers standout performance for High Dynamic Range (HDR) videos, which we call HDR-ChipQA. HDR videos represent wider ranges of luminances, details, and colors than Standard…

Image and Video Processing · Electrical Eng. & Systems 2023-04-27 Joshua P. Ebenezer , Zaixi Shang , Yongjun Wu , Hai Wei , Sriram Sethuraman , Alan C. Bovik

Omnidirectional images and videos can provide immersive experience of real-world scenes in Virtual Reality (VR) environment. We present a perceptual omnidirectional image quality assessment (IQA) study in this paper since it is extremely…

Computer Vision and Pattern Recognition · Computer Science 2022-07-07 Huiyu Duan , Guangtao Zhai , Xiongkuo Min , Yucheng Zhu , Yi Fang , Xiaokang Yang

We study the visual quality judgments of human subjects on digital human avatars (sometimes referred to as "holograms" in the parlance of virtual reality [VR] and augmented reality [AR] systems) that have been subjected to distortions. We…

Image and Video Processing · Electrical Eng. & Systems 2024-10-04 Yu-Chih Chen , Avinab Saha , Alexandre Chapiro , Christian Häne , Jean-Charles Bazin , Bo Qiu , Stefano Zanetti , Ioannis Katsavounidis , Alan C. Bovik

We propose a perceptual video quality assessment (PVQA) metric for distorted videos by analyzing the power spectral density (PSD) of a group of pictures. This is an estimation approach that relies on the changes in video dynamic calculated…

Computer Vision and Pattern Recognition · Computer Science 2018-12-14 Mohammed A. Aabed , Gukyeong Kwon , Ghassan AlRegib

Assessing the visual quality of High Dynamic Range (HDR) images is an unexplored and an interesting research topic that has become relevant with the current boom in HDR technology. We propose a new convolutional neural network based model…

Multimedia · Computer Science 2017-12-21 Navaneeth Kamballur Kottayil , Giuseppe Valenzise , Frederic Dufaux , Irene Cheng

The Audio-to-3D-Gesture (A2G) task has enormous potential for various applications in virtual reality and computer graphics, etc. However, current evaluation metrics, such as Fr\'echet Gesture Distance or Beat Constancy, fail at reflecting…

Multimedia · Computer Science 2026-03-27 Zhilin Gao , Yunhao Li , Sijing Wu , Yuqin Cao , Huiyu Duan , Guangtao Zhai

Recent advancements in image quality assessment (IQA), driven by sophisticated deep neural network designs, have significantly improved the ability to approach human perceptions. However, most existing methods are obsessed with fitting the…

Computer Vision and Pattern Recognition · Computer Science 2025-08-26 Shunyu Yao , Ming Liu , Zhilu Zhang , Zhaolin Wan , Zhilong Ji , Jinfeng Bai , Wangmeng Zuo

User-generated content (UGC) live videos are often bothered by various distortions during capture procedures and thus exhibit diverse visual qualities. Such source videos are further compressed and transcoded by media server providers…

Computer Vision and Pattern Recognition · Computer Science 2023-04-20 Zicheng Zhang , Wei Wu , Wei Sun , Dangyang Tu , Wei Lu , Xiongkuo Min , Ying Chen , Guangtao Zhai

The proliferation of in-the-wild videos has greatly expanded the Video Quality Assessment (VQA) problem. Unlike early definitions that usually focus on limited distortion types, VQA on in-the-wild videos is especially challenging as it…

Computer Vision and Pattern Recognition · Computer Science 2023-08-04 Haoning Wu , Erli Zhang , Liang Liao , Chaofeng Chen , Jingwen Hou , Annan Wang , Wenxiu Sun , Qiong Yan , Weisi Lin

With the development of rendering techniques, computer graphics generated images (CGIs) have been widely used in practical application scenarios such as architecture design, video games, simulators, movies, etc. Different from natural scene…

Graphics · Computer Science 2022-06-13 Tao Wang , Zicheng Zhang , Wei Sun , Xiongkuo Min , Wei Lu , Guangtao Zhai

With the rapid development of e-commerce and digital fashion, image-based virtual try-on (VTON) has attracted increasing attention. However, existing VTON models often suffer from artifacts such as garment distortion and body inconsistency,…

Computer Vision and Pattern Recognition · Computer Science 2026-01-07 Xinyi Wei , Sijing Wu , Zitong Xu , Yunhao Li , Huiyu Duan , Xiongkuo Min , Guangtao Zhai

Over the past decade, 3D graphics have become highly detailed to mimic the real world, exploding their size and complexity. Certain applications and device constraints necessitate their simplification and/or lossy compression, which can…

Perceptual quality assessment of the videos acquired in the wilds is of vital importance for quality assurance of video services. The inaccessibility of reference videos with pristine quality and the complexity of authentic distortions pose…

Image and Video Processing · Electrical Eng. & Systems 2022-04-06 Bowen Li , Weixia Zhang , Meng Tian , Guangtao Zhai , Xianpei Wang

As multimedia services such as video streaming, video conferencing, virtual reality (VR), and online gaming continue to expand, ensuring high perceptual visual quality becomes a priority to maintain user satisfaction and competitiveness.…

Multimedia · Computer Science 2025-03-04 Wei Zhou , Hadi Amirpour , Christian Timmerer , Guangtao Zhai , Patrick Le Callet , Alan C. Bovik

The great variations of videographic skills, camera designs, compression and processing protocols, and displays lead to an enormous variety of video impairments. Current no-reference (NR) video quality models are unable to handle this…

Image and Video Processing · Electrical Eng. & Systems 2018-11-06 Zeina Sinno , Alan C. Bovik

While high data quality (DQ) is critical for analytics, compliance, and AI performance, data quality management (DQM) remains a complex, resource-intensive, and often manual process. This study investigates the extent to which existing…

Databases · Computer Science 2025-06-30 Heidi Carolina Tamm , Anastasija Nikiforova

Video quality assessment (VQA) is an important problem in computer vision. The videos in computer vision applications are usually captured in the wild. We focus on automatically assessing the quality of in-the-wild videos, which is a…

Computer Vision and Pattern Recognition · Computer Science 2021-02-11 Dingquan Li , Tingting Jiang , Ming Jiang