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Recently, video object segmentation (VOS) networks typically use memory-based methods: for each query frame, the mask is predicted by space-time matching to memory frames. Despite these methods having superior performance, they suffer from…

计算机视觉与模式识别 · 计算机科学 2024-05-08 Yadang Chen , Wentao Zhu , Zhi-Xin Yang , Enhua Wu

Generating temporally-consistent high-fidelity videos can be computationally expensive, especially over longer temporal spans. More-recent Diffusion Transformers (DiTs) -- despite making significant headway in this context -- have only…

计算机视觉与模式识别 · 计算机科学 2024-11-08 Kumara Kahatapitiya , Haozhe Liu , Sen He , Ding Liu , Menglin Jia , Chenyang Zhang , Michael S. Ryoo , Tian Xie

Although adaptive optimization algorithms such as Adam show fast convergence in many machine learning tasks, this paper identifies a problem of Adam by analyzing its performance in a simple non-convex synthetic problem, showing that Adam's…

机器学习 · 计算机科学 2020-05-06 Wenjie Li , Zhaoyang Zhang , Xinjiang Wang , Ping Luo

360-degree panoramic videos have gained considerable attention in recent years due to the rapid development of head-mounted displays (HMDs) and panoramic cameras. One major problem in streaming panoramic videos is that panoramic videos are…

计算机视觉与模式识别 · 计算机科学 2022-12-21 Yuang Jiang , Konstantinos Poularakis , Diego Kiedanski , Sastry Kompella , Leandros Tassiulas

The rapid evolution of multimedia and computer vision technologies requires adaptive visual model deployment strategies to effectively handle diverse tasks and varying environments. This work introduces AxiomVision, a novel framework that…

多媒体 · 计算机科学 2024-07-31 Xiangxiang Dai , Zeyu Zhang , Peng Yang , Yuedong Xu , Xutong Liu , John C. S. Lui

Visual token reduction is critical for accelerating Vision-Language Models (VLMs), yet most existing approaches rely on a fixed budget shared across all inputs, overlooking the substantial variation in image information density. We propose…

计算机视觉与模式识别 · 计算机科学 2026-03-09 Jialuo He , Huangxun Chen

Many deep learning based video compression artifact removal algorithms have been proposed to recover high-quality videos from low-quality compressed videos. Recently, methods were proposed to mine spatiotemporal information via utilizing…

图像与视频处理 · 电气工程与系统科学 2021-06-01 Yi Xu , Minyi Zhao , Jing Liu , Xinjian Zhang , Longwen Gao , Shuigeng Zhou , Huyang Sun

Existing supervised action segmentation methods depend on the quality of frame-wise classification using attention mechanisms or temporal convolutions to capture temporal dependencies. Even boundary detection-based methods primarily depend…

计算机视觉与模式识别 · 计算机科学 2025-02-18 Kamel Aouaidjia , Wenhao Zhang , Aofan Li , Chongsheng Zhang

It is well known that we need to choose the hyper-parameters in Momentum, AdaGrad, AdaDelta, and other alternative stochastic optimizers. While in many cases, the hyper-parameters are tuned tediously based on experience becoming more of an…

机器学习 · 计算机科学 2022-04-05 Jun Lu

In this paper, the main task we aim to tackle is the multi-instance semi-supervised video object segmentation across a sequence of frames where only the first-frame box-level ground-truth is provided. Detection-based algorithms are widely…

计算机视觉与模式识别 · 计算机科学 2020-04-17 Mingjie Sun , Jimin Xiao , Eng Gee Lim , Bingfeng Zhang , Yao Zhao

Recent years have seen remarkable progress in semantic segmentation. Yet, it remains a challenging task to apply segmentation techniques to video-based applications. Specifically, the high throughput of video streams, the sheer cost of…

计算机视觉与模式识别 · 计算机科学 2018-04-03 Yule Li , Jianping Shi , Dahua Lin

Our goal in this work is to generate realistic videos given just one initial frame as input. Existing unsupervised approaches to this task do not consider the fact that a video typically shows a 3D environment, and that this should remain…

计算机视觉与模式识别 · 计算机科学 2021-06-18 Paul Henderson , Christoph H. Lampert , Bernd Bickel

Image classification is one of the most fundamental tasks in Computer Vision. In practical applications, the datasets are usually not as abundant as those in the laboratory and simulation, which is always called as Data Hungry. How to…

计算机视觉与模式识别 · 计算机科学 2023-06-08 Feiyang Han , Yun Miao , Zhaoyi Sun , Yimin Wei

We propose a neural network model to estimate the current frame from two reference frames, using affine transformation and adaptive spatially-varying filters. The estimated affine transformation allows for using shorter filters compared to…

图像与视频处理 · 电气工程与系统科学 2021-02-18 Hyomin Choi , Ivan V. Bajić

Recent advances in video processing utilizing deep learning primitives achieved breakthroughs in fundamental problems in video analysis such as frame classification and object detection enabling an array of new applications. In this paper…

数据库 · 计算机科学 2020-02-26 Nick Koudas , Raymond Li , Ioannis Xarchakos

This paper studies deep network architectures to address the problem of video classification. A multi-stream framework is proposed to fully utilize the rich multimodal information in videos. Specifically, we first train three Convolutional…

计算机视觉与模式识别 · 计算机科学 2015-11-12 Zuxuan Wu , Yu-Gang Jiang , Xi Wang , Hao Ye , Xiangyang Xue , Jun Wang

Spatial convolutions are extensively 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…

计算机视觉与模式识别 · 计算机科学 2023-08-14 Ziyuan Huang , Shiwei Zhang , Liang Pan , Zhiwu Qing , Yingya Zhang , Ziwei Liu , Marcelo H. Ang

Link prediction is a fundamental problem of data science, which usually calls for unfolding the mechanisms that govern the micro-dynamics of networks. In this regard, using features obtained from network embedding for predicting links has…

社会与信息网络 · 计算机科学 2021-11-16 Chuanting Zhang , Ke-ke Shang , Jingping Qiao

In Active Domain Adaptation (ADA), one uses Active Learning (AL) to select a subset of images from the target domain, which are then annotated and used for supervised domain adaptation (DA). Given the large performance gap between…

计算机视觉与模式识别 · 计算机科学 2022-10-14 Sharat Agarwal , Saket Anand , Chetan Arora

One of the greatest challenges in the design of a real-time perception system for autonomous driving vehicles and drones is the conflicting requirement of safety (high prediction accuracy) and efficiency. Traditional approaches use a single…

计算机视觉与模式识别 · 计算机科学 2018-11-27 Ziyao Tang , Yongxi Lu , Tara Javidi
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