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In this paper, we address the challenges in unsupervised video object segmentation (UVOS) by proposing an efficient algorithm, termed MTNet, which concurrently exploits motion and temporal cues. Unlike previous methods that focus solely on…

Computer Vision and Pattern Recognition · Computer Science 2025-01-15 Yunzhi Zhuge , Hongyu Gu , Lu Zhang , Jinqing Qi , Huchuan Lu

We introduce a novel robotic system for improving unseen object instance segmentation in the real world by leveraging long-term robot interaction with objects. Previous approaches either grasp or push an object and then obtain the…

Recently developed deep learning models are able to learn to segment scenes into component objects without supervision. This opens many new and exciting avenues of research, allowing agents to take objects (or entities) as inputs, rather…

This work strives for the classification and localization of human actions in videos, without the need for any labeled video training examples. Where existing work relies on transferring global attribute or object information from seen to…

Computer Vision and Pattern Recognition · Computer Science 2021-04-13 Pascal Mettes , William Thong , Cees G. M. Snoek

We propose an efficient abnormal event detection model based on a lightweight masked auto-encoder (AE) applied at the video frame level. The novelty of the proposed model is threefold. First, we introduce an approach to weight tokens based…

Computer Vision and Pattern Recognition · Computer Science 2024-03-12 Nicolae-Catalin Ristea , Florinel-Alin Croitoru , Radu Tudor Ionescu , Marius Popescu , Fahad Shahbaz Khan , Mubarak Shah

The task of temporally detecting and segmenting actions in untrimmed videos has seen an increased attention recently. One problem in this context arises from the need to define and label action boundaries to create annotations for training…

Computer Vision and Pattern Recognition · Computer Science 2019-04-09 Anna Kukleva , Hilde Kuehne , Fadime Sener , Juergen Gall

Unsupervised learning is becoming more and more important recently. As one of its key components, the autoencoder (AE) aims to learn a latent feature representation of data which is more robust and discriminative. However, most AE based…

Machine Learning · Computer Science 2019-04-02 Jingcai Guo , Song Guo

The proliferation of video content on platforms like YouTube and Vimeo presents significant challenges in efficiently locating relevant information. Automatic video summarization aims to address this by extracting and presenting key content…

Computer Vision and Pattern Recognition · Computer Science 2024-08-28 Jia-Hong Huang

3D models of manufactured objects are important for populating virtual worlds and for synthetic data generation for vision and robotics. To be most useful, such objects should be articulated: their parts should move when interacted with.…

Graphics · Computer Science 2022-06-20 Xianghao Xu , Yifan Ruan , Srinath Sridhar , Daniel Ritchie

We consider the task of semi-supervised video object segmentation (VOS). Our approach mitigates shortcomings in previous VOS work by addressing detail preservation and temporal consistency using visual warping. In contrast to prior work…

Computer Vision and Pattern Recognition · Computer Science 2021-11-23 Julia Gong , F. Christopher Holsinger , Serena Yeung

We introduce a convolutional neural network model for unsupervised learning of depth and ego-motion from cylindrical panoramic video. Panoramic depth estimation is an important technology for applications such as virtual reality, 3D…

Computer Vision and Pattern Recognition · Computer Science 2020-08-20 Alisha Sharma , Jonathan Ventura

Video object segmentation is a fundamental step in many advanced vision applications. Most existing algorithms are based on handcrafted features such as HOG, super-pixel segmentation or texture-based techniques, while recently deep features…

Computer Vision and Pattern Recognition · Computer Science 2018-11-06 Maryam Sultana , Arif Mahmood , Sajid Javed , Soon Ki Jung

Unsupervised localization and segmentation are long-standing robot vision challenges that describe the critical ability for an autonomous robot to learn to decompose images into individual objects without labeled data. These tasks are…

Computer Vision and Pattern Recognition · Computer Science 2023-07-26 Xinyu Zhang , Abdeslam Boularias

YouTube users looking for instructions for a specific task may spend a long time browsing content trying to find the right video that matches their needs. Creating a visual summary (abridged version of a video) provides viewers with a quick…

Computer Vision and Pattern Recognition · Computer Science 2022-08-16 Medhini Narasimhan , Arsha Nagrani , Chen Sun , Michael Rubinstein , Trevor Darrell , Anna Rohrbach , Cordelia Schmid

Human actions in videos are 3D signals. However, there are a few methods available for multiple human action recognition. For long videos, it's difficult to search within a video for a specific action and/or person. For that, this paper…

Computer Vision and Pattern Recognition · Computer Science 2021-03-16 Noor Almaadeed , Omar Elharrouss , Somaya Al-Maadeed , Ahmed Bouridane , Azeddine Beghdadi

Video summarization aims to facilitate large-scale video browsing by producing short, concise summaries that are diverse and representative of original videos. In this paper, we formulate video summarization as a sequential decision-making…

Computer Vision and Pattern Recognition · Computer Science 2018-02-15 Kaiyang Zhou , Yu Qiao , Tao Xiang

We propose an unsupervised visual tracking method in this paper. Different from existing approaches using extensive annotated data for supervised learning, our CNN model is trained on large-scale unlabeled videos in an unsupervised manner.…

Computer Vision and Pattern Recognition · Computer Science 2019-04-04 Ning Wang , Yibing Song , Chao Ma , Wengang Zhou , Wei Liu , Houqiang Li

In this work we present an unsupervised approach to summarize sentences in abstractive way using Variational Autoencoder (VAE). VAE are known to learn a semantically rich latent variable, representing high dimensional input. VAEs are…

Computation and Language · Computer Science 2018-09-24 Raphael Schumann

The ability to localize and segment objects from unseen classes would open the door to new applications, such as autonomous object learning in active vision. Nonetheless, improving the performance on unseen classes requires additional…

Computer Vision and Pattern Recognition · Computer Science 2021-08-24 Yuming Du , Yang Xiao , Vincent Lepetit

Online unsupervised video object segmentation (UVOS) uses the previous frames as its input to automatically separate the primary object(s) from a streaming video without using any further manual annotation. A major challenge is that the…

Computer Vision and Pattern Recognition · Computer Science 2024-01-18 Lin Xi , Weihai Chen , Xingming Wu , Zhong Liu , Zhengguo Li