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This paper presents a cross-layer video delivery scheme, StreamOptix, and proposes a joint optimization algorithm for video delivery that leverages the characteristics of the physical (PHY), medium access control (MAC), and application…

Multimedia · Computer Science 2024-06-10 Mufan Liu , Le Yang , Yifan Wang , Yiling Xu , Ye-Kui Wang , Yunfeng Guan

Video super-resolution (VSR) has many applications that pose strict causal, real-time, and latency constraints, including video streaming and TV. We address the VSR problem under these settings, which poses additional important challenges…

Image and Video Processing · Electrical Eng. & Systems 2022-04-07 Dario Fuoli , Martin Danelljan , Radu Timofte , Luc Van Gool

In recent years, videos and images in 720p (HD), 1080p (FHD) and 4K (UHD) resolution have become more popular for display devices such as TVs, mobile phones and VR. However, these high resolution images cannot achieve the expected visual…

Image and Video Processing · Electrical Eng. & Systems 2023-05-08 Jiaming Guo , Xueyi Zou , Yuyi Chen , Yi Liu , Jia Hao , Jianzhuang Liu , Youliang Yan

Virtual Reality (VR) applications require high data rate for a high-quality immersive experience, in addition to low latency to avoid dizziness and motion sickness. One of the key wireless VR challenges is providing seamless connectivity…

Networking and Internet Architecture · Computer Science 2021-10-07 Mostafa Abdelrahman , Mohammed Elbamby , Vilho Räisänen

Recently, end-to-end trainable deep neural networks have significantly improved stereo depth estimation for perspective images. However, 360{\deg} images captured under equirectangular projection cannot benefit from directly adopting…

Computer Vision and Pattern Recognition · Computer Science 2020-03-27 Ning-Hsu Wang , Bolivar Solarte , Yi-Hsuan Tsai , Wei-Chen Chiu , Min Sun

eXtended reality (XR) technologies such as virtual reality and 360{\deg} stereoscopic streaming enable the concept of the Metaverse, an immersive virtual space for collaboration and interaction. To ensure high fidelity display of immersive…

Multimedia · Computer Science 2023-01-20 Haiwei Dong , Jeannie S. A. Lee

Spatial convolutions are widely used in numerous deep video models. It fundamentally assumes spatio-temporal invariance, i.e., using shared weights for every location in different frames. This work presents Temporally-Adaptive Convolutions…

Computer Vision and Pattern Recognition · Computer Science 2022-03-18 Ziyuan Huang , Shiwei Zhang , Liang Pan , Zhiwu Qing , Mingqian Tang , Ziwei Liu , Marcelo H. Ang

Video compression is a critical component of Internet video delivery. Recent work has shown that deep learning techniques can rival or outperform human-designed algorithms, but these methods are significantly less compute and…

Computer Vision and Pattern Recognition · Computer Science 2021-04-07 Mehrdad Khani , Vibhaalakshmi Sivaraman , Mohammad Alizadeh

Fully immersive experiences that tightly integrate 6-DoF visual and auditory interaction are essential for virtual and augmented reality. While such experiences can be achieved through computer-generated content, constructing them directly…

Computer Vision and Pattern Recognition · Computer Science 2026-04-13 Zhengxian Yang , Shengqi Wang , Shi Pan , Hongshuai Li , Haoxiang Wang , Lin Li , Guanjun Li , Zhengqi Wen , Borong Lin , Jianhua Tao , Tao Yu

The growing interest in omnidirectional videos (ODVs) that capture the full field-of-view (FOV) has gained 360-degree saliency prediction importance in computer vision. However, predicting where humans look in 360-degree scenes presents…

Computer Vision and Pattern Recognition · Computer Science 2023-08-28 Mert Cokelek , Nevrez Imamoglu , Cagri Ozcinar , Erkut Erdem , Aykut Erdem

Volumetric video, which offers immersive viewing experiences, is gaining increasing prominence. With its six degrees of freedom, it provides viewers with greater immersion and interactivity compared to traditional videos. Despite their…

Multimedia · Computer Science 2024-12-19 Yili Jin , Kaiyuan Hu , Junhua Liu , Fangxin Wang , Xue Liu

Virtual Reality systems provide many opportunities for scientific research and consumer enjoyment; however, they are more demanding than traditional desktop applications and require a wired connection to desktops in order to enjoy maximum…

Graphics · Computer Science 2023-03-30 Ville Cantory , Nathan Ringo

Video streaming today accounts for up to 55\% of mobile traffic. In this paper, we explore streaming videos encoded using Scalable Video Coding scheme (SVC) over highly variable bandwidth conditions such as cellular networks. SVC's unique…

Networking and Internet Architecture · Computer Science 2018-06-14 Anis Elgabli , Vaneet Aggarwal , Shuai Hao , Feng Qian , Subhabrata Sen

The increase in video streaming has presented a challenge of handling stream request effectively, especially over networks that are variable. This paper describes a new adaptive video streaming architecture capable of changing the video…

Networking and Internet Architecture · Computer Science 2025-02-05 Mohammad Tarik , Qutaiba Ibrahim

Efficient video processing is a critical component in many IoMT applications to detect events of interest. Presently, many window optimization techniques have been proposed in event processing with an underlying assumption that the incoming…

Computer Vision and Pattern Recognition · Computer Science 2021-05-10 Piyush Yadav , Dhaval Salwala , Edward Curry

Most of the existing works in supervised spatio-temporal video super-resolution (STVSR) heavily rely on a large-scale external dataset consisting of paired low-resolution low-frame rate (LR-LFR)and high-resolution high-frame-rate (HR-HFR)…

Image and Video Processing · Electrical Eng. & Systems 2021-08-09 Akash Gupta , Padmaja Jonnalagedda , Bir Bhanu , Amit K. Roy-Chowdhury

Spherical 360{\deg} video is a novel media format, rapidly becoming adopted in media production and consumption of immersive media. Due to its novelty, there is a lack of tools for producing highly engaging interactive 360{\deg} video for…

We introduce a method to convert stereo 360{\deg} (omnidirectional stereo) imagery into a layered, multi-sphere image representation for six degree-of-freedom (6DoF) rendering. Stereo 360{\deg} imagery can be captured from multi-camera…

Computer Vision and Pattern Recognition · Computer Science 2020-08-18 Benjamin Attal , Selena Ling , Aaron Gokaslan , Christian Richardt , James Tompkin

Classical pixel-based Visual Servoing (VS) approaches offer high accuracy but suffer from a limited convergence area due to optimization nonlinearity. Modern deep learning-based VS methods overcome traditional vision issues but lack…

Robotics · Computer Science 2023-10-03 Salar Asayesh , Hossein Sheikhi Darani , Mo chen , Mehran Mehrandezh , Kamal Gupta

We provide a unified framework using which we design scalable dynamic adaptive video streaming algorithms based on index based policies (dubbed DAS-IP) to maximize the Quality of Experience (QoE) provided to clients using video streaming…

Networking and Internet Architecture · Computer Science 2016-12-20 Rahul Singh , P. R. Kumar