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With the exponential growth of video content, the need for automated video highlight detection to extract key moments or highlights from lengthy videos has become increasingly pressing. This technology has the potential to enhance user…

计算机视觉与模式识别 · 计算机科学 2025-05-16 Zahidul Islam , Sujoy Paul , Mrigank Rochan

Significant performance improvement has been achieved for fully-supervised video salient object detection with the pixel-wise labeled training datasets, which are time-consuming and expensive to obtain. To relieve the burden of data…

计算机视觉与模式识别 · 计算机科学 2021-04-07 Wangbo Zhao , Jing Zhang , Long Li , Nick Barnes , Nian Liu , Junwei Han

In low-level video analyses, effective representations are important to derive the correspondences between video frames. These representations have been learned in a self-supervised fashion from unlabeled images or videos, using carefully…

计算机视觉与模式识别 · 计算机科学 2023-06-23 Rui Li , Dong Liu

We address the problem of data augmentation for video action recognition. Standard augmentation strategies in video are hand-designed and sample the space of possible augmented data points either at random, without knowing which augmented…

计算机视觉与模式识别 · 计算机科学 2022-07-26 Shreyank N Gowda , Marcus Rohrbach , Frank Keller , Laura Sevilla-Lara

We present a novel approach for unsupervised activity segmentation which uses video frame clustering as a pretext task and simultaneously performs representation learning and online clustering. This is in contrast with prior works where…

计算机视觉与模式识别 · 计算机科学 2023-08-21 Sateesh Kumar , Sanjay Haresh , Awais Ahmed , Andrey Konin , M. Zeeshan Zia , Quoc-Huy Tran

Recent semi-supervised learning methods have shown to achieve comparable results to their supervised counterparts while using only a small portion of labels in image classification tasks thanks to their regularization strategies. In this…

机器学习 · 计算机科学 2020-09-25 Wei-Hong Li , Chuan-Sheng Foo , Hakan Bilen

The standard way of training video models entails sampling at each iteration a single clip from a video and optimizing the clip prediction with respect to the video-level label. We argue that a single clip may not have enough temporal…

计算机视觉与模式识别 · 计算机科学 2021-04-06 Xitong Yang , Haoqi Fan , Lorenzo Torresani , Larry Davis , Heng Wang

Most previous scene text spotting methods rely on high-quality manual annotations to achieve promising performance. To reduce their expensive costs, we study semi-supervised text spotting (SSTS) to exploit useful information from unlabeled…

计算机视觉与模式识别 · 计算机科学 2025-04-15 Dongliang Luo , Hanshen Zhu , Ziyang Zhang , Dingkang Liang , Xudong Xie , Yuliang Liu , Xiang Bai

A key challenge in self-supervised video representation learning is how to effectively capture motion information besides context bias. While most existing works implicitly achieve this with video-specific pretext tasks (e.g., predicting…

计算机视觉与模式识别 · 计算机科学 2021-04-05 Lianghua Huang , Yu Liu , Bin Wang , Pan Pan , Yinghui Xu , Rong Jin

Human action or activity recognition in videos is a fundamental task in computer vision with applications in surveillance and monitoring, self-driving cars, sports analytics, human-robot interaction and many more. Traditional supervised…

计算机视觉与模式识别 · 计算机科学 2024-04-10 Sharana Dharshikgan Suresh Dass , Hrishav Bakul Barua , Ganesh Krishnasamy , Raveendran Paramesran , Raphael C. -W. Phan

In video surveillance, person re-identification is the task of searching person images in non-overlapping cameras. Though supervised methods for person re-identification have attained impressive performance, obtaining large scale cross-view…

计算机视觉与模式识别 · 计算机科学 2019-10-10 T M Feroz Ali , Subhasis Chaudhuri

In this paper, we present a novel cross-consistency based semi-supervised approach for semantic segmentation. Consistency training has proven to be a powerful semi-supervised learning framework for leveraging unlabeled data under the…

计算机视觉与模式识别 · 计算机科学 2020-06-11 Yassine Ouali , Céline Hudelot , Myriam Tami

Deep co-training has recently been proposed as an effective approach for image segmentation when annotated data is scarce. In this paper, we improve existing approaches for semi-supervised segmentation with a self-paced and self-consistent…

计算机视觉与模式识别 · 计算机科学 2021-07-15 Ping Wang , Jizong Peng , Marco Pedersoli , Yuanfeng Zhou , Caiming Zhang , Christian Desrosiers

We propose a self-supervised learning approach for videos that learns representations of both the RGB frames and the accompanying audio without human supervision. In contrast to images that capture the static scene appearance, videos also…

计算机视觉与模式识别 · 计算机科学 2023-02-16 Simon Jenni , Alexander Black , John Collomosse

A steady momentum of innovations and breakthroughs has convincingly pushed the limits of unsupervised image representation learning. Compared to static 2D images, video has one more dimension (time). The inherent supervision existing in…

计算机视觉与模式识别 · 计算机科学 2021-01-28 Ting Yao , Yiheng Zhang , Zhaofan Qiu , Yingwei Pan , Tao Mei

Unsupervised multi-object segmentation has shown impressive results on images by utilizing powerful semantics learned from self-supervised pretraining. An additional modality such as depth or motion is often used to facilitate the…

计算机视觉与模式识别 · 计算机科学 2023-10-12 Görkay Aydemir , Weidi Xie , Fatma Güney

This paper studies the problem of semi-supervised video object segmentation(VOS). Multiple works have shown that memory-based approaches can be effective for video object segmentation. They are mostly based on pixel-level matching, both…

计算机视觉与模式识别 · 计算机科学 2021-04-12 Li Hu , Peng Zhang , Bang Zhang , Pan Pan , Yinghui Xu , Rong Jin

The success of existing salient object detection models relies on a large pixel-wise labeled training dataset, which is time-consuming and expensive to obtain. We study semi-supervised salient object detection, with access to a small number…

计算机视觉与模式识别 · 计算机科学 2023-11-28 Jiawei Liu , Jing Zhang , Nick Barnes

Weakly-supervised temporal action localization aims to learn detecting temporal intervals of action classes with only video-level labels. To this end, it is crucial to separate frames of action classes from the background frames (i.e.,…

计算机视觉与模式识别 · 计算机科学 2020-12-18 Pilhyeon Lee , Jinglu Wang , Yan Lu , Hyeran Byun

In this paper, we propose Spatio-TEmporal Progressive (STEP) action detector---a progressive learning framework for spatio-temporal action detection in videos. Starting from a handful of coarse-scale proposal cuboids, our approach…

计算机视觉与模式识别 · 计算机科学 2019-04-22 Xitong Yang , Xiaodong Yang , Ming-Yu Liu , Fanyi Xiao , Larry Davis , Jan Kautz