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The success of deep neural networks generally requires a vast amount of training data to be labeled, which is expensive and unfeasible in scale, especially for video collections. To alleviate this problem, in this paper, we propose…

计算机视觉与模式识别 · 计算机科学 2019-04-05 Longlong Jing , Xiaodong Yang , Jingen Liu , Yingli Tian

We address the problem of temporal localization of repetitive activities in a video, i.e., the problem of identifying all segments of a video that contain some sort of repetitive or periodic motion. To do so, the proposed method represents…

计算机视觉与模式识别 · 计算机科学 2019-10-15 Giorgos Karvounas , Iason Oikonomidis , Antonis Argyros

Recently, the applications of person re-identification in visual surveillance and human-computer interaction are sharply increasing, which signifies the critical role of such a problem. In this paper, we propose a two-stream convolutional…

信息检索 · 计算机科学 2019-05-29 Peixian Chen , Pingyang Dai , Qiong Wu , Yuyu Huang

Applying resolution-preserving blocks is a common practice to maximize information preservation in video prediction, yet their high memory consumption greatly limits their application scenarios. We propose CrevNet, a Conditionally…

计算机视觉与模式识别 · 计算机科学 2019-10-28 Wei Yu , Yichao Lu , Steve Easterbrook , Sanja Fidler

The goal of video-based person re-identification is to match two input videos, so that the distance of the two videos is small if two videos contain the same person. A common approach for person re-identification is to first extract image…

计算机视觉与模式识别 · 计算机科学 2019-04-11 Tanzila Rahman , Mrigank Rochan , Yang Wang

Weakly supervised learning has emerged as a compelling tool for object detection by reducing the need for strong supervision during training. However, major challenges remain: (1) differentiation of object instances can be ambiguous; (2)…

计算机视觉与模式识别 · 计算机科学 2020-10-22 Zhongzheng Ren , Zhiding Yu , Xiaodong Yang , Ming-Yu Liu , Yong Jae Lee , Alexander G. Schwing , Jan Kautz

Current semi-supervised video object segmentation (VOS) methods usually leverage the entire features of one frame to predict object masks and update memory. This introduces significant redundant computations. To reduce redundancy, we…

计算机视觉与模式识别 · 计算机科学 2022-07-22 Bo Miao , Mohammed Bennamoun , Yongsheng Gao , Ajmal Mian

Deep learning and convolutional neural networks (ConvNets) have been successfully applied to most relevant tasks in the computer vision community. However, these networks are computationally demanding and not suitable for embedded devices…

计算机视觉与模式识别 · 计算机科学 2016-06-20 Jose Alvarez , Lars Petersson

By converting low-frame-rate, low-resolution videos into high-frame-rate, high-resolution ones, space-time video super-resolution techniques can enhance visual experiences and facilitate more efficient information dissemination. We propose…

图像与视频处理 · 电气工程与系统科学 2024-07-12 Congrui Fu , Hui Yuan , Shiqi Jiang , Guanghui Zhang , Liquan Shen , Raouf Hamzaoui

Object reconstruction from 3D point clouds has been a long-standing research problem in computer vision and computer graphics, and achieved impressive progress. However, reconstruction from time-varying point clouds (a.k.a. 4D point clouds)…

计算机视觉与模式识别 · 计算机科学 2023-10-18 Tuan-Anh Vu , Duc Thanh Nguyen , Binh-Son Hua , Quang-Hieu Pham , Sai-Kit Yeung

We propose a simple yet effective method to learn to segment new indoor scenes from video frames: State-of-the-art methods trained on one dataset, even as large as the SUNRGB-D dataset, can perform poorly when applied to images that are not…

计算机视觉与模式识别 · 计算机科学 2020-01-09 Sinisa Stekovic , Friedrich Fraundorfer , Vincent Lepetit

In this paper, we introduce a self-supervised approach for video object segmentation without human labeled data.Specifically, we present Robust Pixel-level Matching Net-works (RPM-Net), a novel deep architecture that matches pixels between…

计算机视觉与模式识别 · 计算机科学 2019-10-11 Youngeun Kim , Seokeon Choi , Hankyeol Lee , Taekyung Kim , Changick Kim

Recent video recognition models utilize Transformer models for long-range spatio-temporal context modeling. Video transformer designs are based on self-attention that can model global context at a high computational cost. In comparison,…

计算机视觉与模式识别 · 计算机科学 2023-10-30 Syed Talal Wasim , Muhammad Uzair Khattak , Muzammal Naseer , Salman Khan , Mubarak Shah , Fahad Shahbaz Khan

We propose a novel self-supervised Video Object Segmentation (VOS) approach that strives to achieve better object-background discriminability for accurate object segmentation. Distinct from previous self-supervised VOS methods, our approach…

计算机视觉与模式识别 · 计算机科学 2022-04-25 Jyoti Kini , Fahad Shahbaz Khan , Salman Khan , Mubarak Shah

Recently vision transformer has achieved tremendous success on image-level visual recognition tasks. To effectively and efficiently model the crucial temporal information within a video clip, we propose a Temporally Efficient Vision…

计算机视觉与模式识别 · 计算机科学 2022-04-19 Shusheng Yang , Xinggang Wang , Yu Li , Yuxin Fang , Jiemin Fang , Wenyu Liu , Xun Zhao , Ying Shan

Vision transformers (ViTs) have been successfully applied in image classification tasks recently. In this paper, we show that, unlike convolution neural networks (CNNs)that can be improved by stacking more convolutional layers, the…

计算机视觉与模式识别 · 计算机科学 2021-04-20 Daquan Zhou , Bingyi Kang , Xiaojie Jin , Linjie Yang , Xiaochen Lian , Zihang Jiang , Qibin Hou , Jiashi Feng

Deep Convolution Neural Networks (CNNs) have shown impressive performance in various vision tasks such as image classification, object detection and semantic segmentation. For object detection, particularly in still images, the performance…

计算机视觉与模式识别 · 计算机科学 2017-03-07 Kai Kang , Wanli Ouyang , Hongsheng Li , Xiaogang Wang

This paper addresses the task of segmenting class-agnostic objects in semi-supervised setting. Although previous detection based methods achieve relatively good performance, these approaches extract the best proposal by a greedy strategy,…

计算机视觉与模式识别 · 计算机科学 2020-12-11 Daizong Liu , Shuangjie Xu , Xiao-Yang Liu , Zichuan Xu , Wei Wei , Pan Zhou

We present a novel unsupervised method for face identity learning from video sequences. The method exploits the ResNet deep network for face detection and VGGface fc7 face descriptors together with a smart learning mechanism that exploits…

计算机视觉与模式识别 · 计算机科学 2017-08-14 Federico Pernici , Alberto Del Bimbo

The current popular methods for video object segmentation (VOS) implement feature matching through several hand-crafted modules that separately perform feature extraction and matching. However, the above hand-crafted designs empirically…

计算机视觉与模式识别 · 计算机科学 2023-08-22 Qiangqiang Wu , Tianyu Yang , Wei WU , Antoni Chan