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For $360^{\circ}$ video streaming, FoV-adaptive coding that allocates more bits for the predicted user's field of view (FoV) is an effective way to maximize the rendered video quality under the limited bandwidth. We develop a low-latency…

Image and Video Processing · Electrical Eng. & Systems 2024-03-19 Yixiang Mao , Liyang Sun , Yong Liu , Yao Wang

Training-free video object editing aims to achieve precise object-level manipulation, including object insertion, swapping, and deletion. However, it faces significant challenges in maintaining fidelity and temporal consistency. Existing…

Computer Vision and Pattern Recognition · Computer Science 2025-11-26 Yiyang Chen , Xuanhua He , Xiujun Ma , Yue Ma

While the backpropagation of error algorithm enables deep neural network training, it implies (i) bidirectional synaptic weight transport and (ii) update locking until the forward and backward passes are completed. Not only do these…

Machine Learning · Statistics 2021-01-19 Charlotte Frenkel , Martin Lefebvre , David Bol

Despite some successful applications of goal-driven navigation, existing deep reinforcement learning (DRL)-based approaches notoriously suffers from poor data efficiency issue. One of the reasons is that the goal information is decoupled…

Robotics · Computer Science 2023-11-09 Wenhui Huang , Yanxin Zhou , Xiangkun He , Chen Lv

Efficiently predicting motion plans directly from vision remains a fundamental challenge in robotics, where planning typically requires explicit goal specification and task-specific design. Recent vision-language-action (VLA) models infer…

Adaptive bitrate (ABR) streaming is the de facto solution for achieving smooth viewing experiences under unstable network conditions. However, most of the existing rate adaptation approaches for ABR are content-agnostic, without considering…

Multimedia · Computer Science 2018-11-19 Guanyu Gao , Linsen Dong , Huaizheng Zhang , Yonggang Wen , Wenjun Zeng

This paper aims to tackle a novel task - Temporal Sentence Grounding in Streaming Videos (TSGSV). The goal of TSGSV is to evaluate the relevance between a video stream and a given sentence query. Unlike regular videos, streaming videos are…

Computer Vision and Pattern Recognition · Computer Science 2023-08-15 Tian Gan , Xiao Wang , Yan Sun , Jianlong Wu , Qingpei Guo , Liqiang Nie

We address unsupervised optical flow estimation for ego-centric motion. We argue that optical flow can be cast as a geometrical warping between two successive video frames and devise a deep architecture to estimate such transformation in…

Computer Vision and Pattern Recognition · Computer Science 2017-10-31 Stefano Alletto , Davide Abati , Simone Calderara , Rita Cucchiara , Luca Rigazio

In this paper, hypernetworks are trained to generate behaviors across a range of unseen task conditions, via a novel TD-based training objective and data from a set of near-optimal RL solutions for training tasks. This work relates to meta…

Machine Learning · Computer Science 2023-01-04 Sahand Rezaei-Shoshtari , Charlotte Morissette , Francois Robert Hogan , Gregory Dudek , David Meger

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

Diffusion-based video generation has advanced substantially in visual fidelity and temporal coherence, but practical deployment remains limited by the quadratic complexity of full attention. Training-free sparse attention is attractive…

Computer Vision and Pattern Recognition · Computer Science 2026-05-15 Xuzhe Zheng , Yuexiao Ma , Jing Xu , Xiawu Zheng , Rongrong Ji , Fei Chao

The rise of capturing systems for objects and scenes in 3D with increased fidelity and immersion has led to the popularity of volumetric video contents that can be seen from any position and angle in 6 degrees of freedom navigation. Such…

Multimedia · Computer Science 2022-09-07 Irene Viola , Pablo Cesar

The simplicity of the visual servoing approach makes it an attractive option for tasks dealing with vision-based control of robots in many real-world applications. However, attaining precise alignment for unseen environments pose a…

In this paper, we propose a training-free framework for vision-and-language navigation (VLN). Existing zero-shot VLN methods are mainly designed for discrete environments or involve unsupervised training in continuous simulator…

Robotics · Computer Science 2025-09-15 Hang Yin , Haoyu Wei , Xiuwei Xu , Wenxuan Guo , Jie Zhou , Jiwen Lu

Given an untrimmed video and a language query depicting a specific temporal moment in the video, video grounding aims to localize the time interval by understanding the text and video simultaneously. One of the most challenging issues is an…

Computer Vision and Pattern Recognition · Computer Science 2022-10-25 Dahye Kim , Jungin Park , Jiyoung Lee , Seongheon Park , Kwanghoon Sohn

Wireless Virtual Reality (VR) users are able to enjoy immersive experience from anywhere at anytime. However, providing full spherical VR video with high quality under limited VR interaction latency is challenging. If the viewpoint of the…

Signal Processing · Electrical Eng. & Systems 2020-12-24 Xiaonan Liu , Xinyu Li , Yansha Deng

The ability to promptly respond to environmental changes is crucial for the perception system of autonomous driving. Recently, a new task called streaming perception was proposed. It jointly evaluate the latency and accuracy into a single…

Computer Vision and Pattern Recognition · Computer Science 2024-10-17 Changcai Li , Zonghua Gu , Gang Chen , Libo Huang , Wei Zhang , Huihui Zhou

Vision language models (VLMs) like CLIP show stellar zero-shot capability on classification benchmarks. However, selecting the VLM with the highest performance on the unlabeled downstream task is non-trivial. Existing VLM selection methods…

Computer Vision and Pattern Recognition · Computer Science 2024-12-31 Yuhe Ding , Bo Jiang , Aihua Zheng , Qin Xu , Jian Liang

In this paper, we investigate the visual tracking problem for robotic systems without image-space velocity measurement, simultaneously taking into account the uncertainties of the camera model and the manipulator kinematics and dynamics. We…

Robotics · Computer Science 2015-06-15 Hanlei Wang

Scene flow estimation is the task of describing the 3D motion field between temporally successive point clouds. State-of-the-art methods use strong priors and test-time optimization techniques, but require on the order of tens of seconds to…

Computer Vision and Pattern Recognition · Computer Science 2024-03-15 Kyle Vedder , Neehar Peri , Nathaniel Chodosh , Ishan Khatri , Eric Eaton , Dinesh Jayaraman , Yang Liu , Deva Ramanan , James Hays