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Currently, to further improve visual enjoyment, Ultra-High-Definition (UHD) images are catching wide attention. Here, UHD images are usually referred to as having a resolution greater than or equal to $3840 \times 2160$. However, since the…

Computer Vision and Pattern Recognition · Computer Science 2023-12-04 Zhuoran Zheng , Boxue Xiao

Thanks to their temporal-spatial coverage and free access, Sentinel-2 images are very interesting for the community. However, a relatively coarse spatial resolution, compared to that of state-of-the-art commercial products, motivates the…

Computer Vision and Pattern Recognition · Computer Science 2019-02-08 Massimiliano Gargiulo

The need for ever-faster information processing requires extremely small devices operating at frequencies approaching the terahertz and petahertz regimes. For the diagnostics of such devices, researchers need a spatiotemporal tool that…

Applied Physics · Physics 2024-01-30 Maximilian Mattes , Mikhail Volkov , Peter Baum

Event cameras are a new type of vision sensor that incorporates asynchronous and independent pixels, offering advantages over traditional frame-based cameras such as high dynamic range and minimal motion blur. However, their output is not…

Computer Vision and Pattern Recognition · Computer Science 2024-04-08 Burak Ercan , Onur Eker , Aykut Erdem , Erkut Erdem

Image super-resolution is one of the most popular computer vision problems with many important applications to mobile devices. While many solutions have been proposed for this task, they are usually not optimized even for common smartphone…

In recent years, there has been significant interest in Super-Resolution (SR), which focuses on generating a high-resolution image from a low-resolution input. Deep learning-based methods for super-resolution have been particularly popular…

Image and Video Processing · Electrical Eng. & Systems 2024-12-05 Evgeney Bogatyrev , Ivan Molodetskikh , Dmitriy Vatolin

Real-time graphics is commonly thought of as anything exceeding about 30 fps, where the interactivity of the application becomes fluid enough for high rates of interaction. Inspired by esports and competitive gaming, where players regularly…

Graphics · Computer Science 2022-09-01 Josef Spjut , Arjun Madhusudan , Benjamin Watson , Ben Boudaoud , Joohwan Kim

Video diffusion models have achieved impressive realism and controllability but are limited by high computational demands, restricting their use on mobile devices. This paper introduces the first mobile-optimized video diffusion model.…

Computer Vision and Pattern Recognition · Computer Science 2024-12-11 Haitam Ben Yahia , Denis Korzhenkov , Ioannis Lelekas , Amir Ghodrati , Amirhossein Habibian

Various depth estimation models are now widely used on many mobile and IoT devices for image segmentation, bokeh effect rendering, object tracking and many other mobile tasks. Thus, it is very crucial to have efficient and accurate depth…

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

The emerging video applications greatly increase the demand in network bandwidth that is not easy to scale. To provide higher quality of experience (QoE) under limited bandwidth, a recent trend is to leverage the heterogeneity of quality…

Networking and Internet Architecture · Computer Science 2022-11-30 Xu Zhang , Paul Schmitt , Marshini Chetty , Nick Feamster , Junchen Jiang

Mobile (cellular) networks enable innovation, but can also stifle it and lead to user frustration when network performance falls below expectations. As mobile networks become the predominant method of Internet access, developer, research,…

Networking and Internet Architecture · Computer Science 2016-11-17 Utkarsh Goel , Mike P. Wittie , Kimberly C. Claffy , Andrew Le

The restrictions on the resolution of transmission devices formed by wire media (arrays of conductive cylinders) recently proposed in [Phys. Rev. B, 71, 193105 (2005)] and experimentally tested in [Phys. Rev. B, 73, 033108 (2006)] are…

Optics · Physics 2009-11-11 Pavel A. Belov , Mario G. Silveirinha

The rapid development of multimedia and communication technology has resulted in an urgent need for high-quality video streaming. However, robust video streaming under fluctuating network conditions and heterogeneous client computing…

Systems and Control · Electrical Eng. & Systems 2022-01-21 Junyan Yang , Yang Jiang , Shuoyao Wang

High Quality Mobile Virtual Reality (VR) is what the incoming graphics technology era demands: users around the world, regardless of their hardware and network conditions, can all enjoy the immersive virtual experience. However, the…

Hardware Architecture · Computer Science 2021-03-01 Chenhao Xie , Xie Li , Yang Hu , Huwan Peng , Michael Taylor , Shuaiwen Leon Song

This paper deals with the issue of the perceptual quality evaluation of user-generated videos shared online, which is an important step toward designing video-sharing services that maximize users' satisfaction in terms of quality. We first…

Multimedia · Computer Science 2018-09-17 Soobeom Jang , Jong-Seok Lee

3D hand pose estimation from monocular videos is a long-standing and challenging problem, which is now seeing a strong upturn. In this work, we address it for the first time using a single event camera, i.e., an asynchronous vision sensor…

Computer Vision and Pattern Recognition · Computer Science 2021-10-12 Viktor Rudnev , Vladislav Golyanik , Jiayi Wang , Hans-Peter Seidel , Franziska Mueller , Mohamed Elgharib , Christian Theobalt

HTTP video streaming is in wide use to deliver video over the Internet. With HTTP adaptive steaming, a video playback dynamically selects a video stream from a pre-encoded representation based on available bandwidth and viewport (screen)…

Multimedia · Computer Science 2017-10-17 Chao Chen , Yao-Chung Lin , Anil Kokaram , Steve Benting

Optical sensors offer precision, remote read-out, and immunity to electromagnetic interference but face adoption challenges due to complex and costly readout instrumentation, mostly based on high-resolution. This article challenges the…

The commercialization of Virtual Reality (VR) headsets has made immersive and 360-degree video streaming the subject of intense interest in the industry and research communities. While the basic principles of video streaming are the same,…

Multimedia · Computer Science 2021-02-17 Federico Chiariotti