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Digital humans are attracting more and more research interest during the last decade, the generation, representation, rendering, and animation of which have been put into large amounts of effort. However, the quality assessment of digital…

计算机视觉与模式识别 · 计算机科学 2023-03-01 Zicheng Zhang , Yingjie Zhou , Wei Sun , Xiongkuo Min , Yuzhe Wu , Guangtao Zhai

Simple quality metrics such as PSNR are known to not correlate well with subjective quality when tested across a wide spectrum of video content or quality regime. Recently, efforts have been made in designing objective quality metrics…

多媒体 · 计算机科学 2017-07-12 Zhi Li , Christos G. Bampis

Virtual Production (VP) technologies have continued to improve the flexibility of on-set filming and enhance the live concert experience. The core technology of VP relies on high-resolution, high-brightness LED panels to playback/render…

图像与视频处理 · 电气工程与系统科学 2024-11-04 Anil Kokaram , Vibhoothi Vibhoothi , Julien Zouein , François Pitié , Christopher Nash , James Bentley , Philip Coulam-Jones

Video gaming streaming services are growing rapidly due to new services such as passive video streaming, e.g. Twitch.tv, and cloud gaming, e.g. Nvidia Geforce Now. In contrast to traditional video content, gaming content has special…

多媒体 · 计算机科学 2020-05-05 Markus Utke , Saman Zadtootaghaj , Steven Schmidt , Sebastian Möller

In imaging systems, following acquisition, an image/video is transmitted or stored and eventually presented to human observers using different and often imperfect display devices. While the resulting quality of the output image may severely…

多媒体 · 计算机科学 2018-08-01 Yehuda Dar , Michael Elad , Alfred M. Bruckstein

We introduce a new large-scale dataset that links the assessment of image quality issues to two practical vision tasks: image captioning and visual question answering. First, we identify for 39,181 images taken by people who are blind…

计算机视觉与模式识别 · 计算机科学 2020-03-31 Tai-Yin Chiu , Yinan Zhao , Danna Gurari

The Bj{\o}ntegaard Delta (BD) method proposed in 2001 has become a popular tool for comparing video codec compression efficiency. It was initially proposed to compute bitrate and quality differences between two Rate-Distortion curves using…

多媒体 · 计算机科学 2024-01-09 Nabajeet Barman , Maria G. Martini , Yuriy Reznik

As video generation models advance rapidly, assessing the quality of generated videos has become increasingly critical. Existing metrics, such as Fr\'echet Video Distance (FVD), Inception Score (IS), and ClipSim, measure quality primarily…

计算机视觉与模式识别 · 计算机科学 2024-11-27 Zihan Wang , Songlin Li , Lingyan Hao , Xinyu Hu , Bowen Song

Video quality assessment tasks rely heavily on the rich features required for video understanding, such as semantic information, texture, and temporal motion. The existing video foundational model, InternVideo2, has demonstrated strong…

图像与视频处理 · 电气工程与系统科学 2025-02-27 Fengbin Guan , Zihao Yu , Yiting Lu , Xin Li , Zhibo Chen

Surveillance videos often suffer from blur and exposure distortions that occur during acquisition and storage, which can adversely influence following automatic image analysis results on video-analytic tasks. The purpose of this paper is to…

计算机视觉与模式识别 · 计算机科学 2018-10-30 Roger Gomez Nieto , Eugenio Tamura Morimitsu

The main focus of this document is to evaluate the performance of the existing LDR and HDR metrics on HDR video content which in turn will allow for a better understanding of how well each of these metrics work and if they can be applied in…

图像与视频处理 · 电气工程与系统科学 2018-03-16 Amin Banitalebi-Dehkordi , Maryam Azimi , Yuanyuan Dong , Mahsa T. Pourazad , Panos Nasiopoulos

Image restoration algorithms are typically evaluated by some distortion measure (e.g. PSNR, SSIM, IFC, VIF) or by human opinion scores that quantify perceived perceptual quality. In this paper, we prove mathematically that distortion and…

计算机视觉与模式识别 · 计算机科学 2020-10-27 Yochai Blau , Tomer Michaeli

Evaluating the quality of videos generated from text-to-video (T2V) models is important if they are to produce plausible outputs that convince a viewer of their authenticity. We examine some of the metrics used in this area and highlight…

计算机视觉与模式识别 · 计算机科学 2023-09-18 Iya Chivileva , Philip Lynch , Tomas E. Ward , Alan F. Smeaton

There is a growing consensus in the research community that the optimization of low-light image enhancement approaches should be guided by the visual quality perceived by end users. Despite the substantial efforts invested in the design of…

计算机视觉与模式识别 · 计算机科学 2024-06-24 Baoliang Chen , Lingyu Zhu , Hanwei Zhu , Wenhan Yang , Linqi Song , Shiqi Wang

Video Quality Assessment (VQA) aims to simulate the process of perceiving video quality by the human visual system (HVS). The judgments made by HVS are always influenced by human subjective feelings. However, most of the current VQA…

计算机视觉与模式识别 · 计算机科学 2023-11-14 Yachun Mi , Yu Li , Yan Shu , Chen Hui , Puchao Zhou , Shaohui Liu

In order to be able to deliver today's voluminous amount of video contents through limited bandwidth channels in a perceptually optimal way, it is important to consider perceptual trade-offs of compression and space-time downsampling…

图像与视频处理 · 电气工程与系统科学 2021-04-01 Dae Yeol Lee , Hyunsuk Ko , Jongho Kim , Alan C. Bovik

Many different parametric models for video quality assessment have been proposed in the past few years. This paper presents a review of nine recent models which cover a wide range of methodologies and have been validated for estimating…

多媒体 · 计算机科学 2017-07-03 Tiantian He , Yankai Liu , Rong Xie , Xin Tang , Li Song

We introduce HDRSDR-VQA, a large-scale video quality assessment dataset designed to facilitate comparative analysis between High Dynamic Range (HDR) and Standard Dynamic Range (SDR) content under realistic viewing conditions. The dataset…

计算机视觉与模式识别 · 计算机科学 2025-05-29 Bowen Chen , Cheng-han Lee , Yixu Chen , Zaixi Shang , Hai Wei , Alan C. Bovik

Quality assessment is a key element for the evaluation of hardware and software involved in image and video acquisition, processing, and visualization. In the medical field, user-based quality assessment is still considered more reliable…

The identification of source cameras from videos, though it is a highly relevant forensic analysis topic, has been studied much less than its counterpart that uses images. In this work we propose a method to identify the source camera of a…

计算机视觉与模式识别 · 计算机科学 2020-12-14 Derrick Timmerman , Swaroop Bennabhaktula , Enrique Alegre , George Azzopardi