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Effective extraction of temporal patterns is crucial for the recognition of temporally varying actions in video. We argue that the fixed-sized spatio-temporal convolution kernels used in convolutional neural networks (CNNs) can be improved…

Computer Vision and Pattern Recognition · Computer Science 2021-04-01 Alexandros Stergiou , Ronald Poppe

Video instance segmentation aims to detect, segment, and track objects in a video. Current approaches extend image-level segmentation algorithms to the temporal domain. However, this results in temporally inconsistent masks. In this work,…

Computer Vision and Pattern Recognition · Computer Science 2021-12-15 Anirudh S Chakravarthy , Won-Dong Jang , Zudi Lin , Donglai Wei , Song Bai , Hanspeter Pfister

We address the challenging task of cross-modal moment retrieval, which aims to localize a temporal segment from an untrimmed video described by a natural language query. It poses great challenges over the proper semantic alignment between…

Computer Vision and Pattern Recognition · Computer Science 2022-08-22 Kun Liu , Huadong Ma , Chuang Gan

We present IMAS, a method that segments the primary objects in videos without manual annotation in training or inference. Previous methods in unsupervised video object segmentation (UVOS) have demonstrated the effectiveness of motion as…

Computer Vision and Pattern Recognition · Computer Science 2022-12-20 Long Lian , Zhirong Wu , Stella X. Yu

This paper addresses the problem of how to exploit spatio-temporal information available in videos to improve the object detection precision. We propose a two stage object detector called FANet based on short-term spatio-temporal feature…

Computer Vision and Pattern Recognition · Computer Science 2020-11-09 Daniel Cores , Víctor M. Brea , Manuel Mucientes

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

Understanding and predicting video content is essential for planning and reasoning in dynamic environments. Despite advancements, unsupervised learning of object representations and dynamics remains challenging. We present VideoPCDNet, an…

Computer Vision and Pattern Recognition · Computer Science 2025-06-25 Noel José Rodrigues Vicente , Enrique Lehner , Angel Villar-Corrales , Jan Nogga , Sven Behnke

The current state-of-the-art methods for unsupervised video object segmentation (UVOS) require extensive training on video datasets with mask annotations, limiting their effectiveness in handling challenging scenarios. However, the Segment…

Computer Vision and Pattern Recognition · Computer Science 2025-07-09 Zhenghao Zhang , Shengfan Zhang , Zhichao Wei , Zuozhuo Dai , Siyu Zhu

We propose an end-to-end learning framework for segmenting generic objects in videos. Our method learns to combine appearance and motion information to produce pixel level segmentation masks for all prominent objects in videos. We formulate…

Computer Vision and Pattern Recognition · Computer Science 2017-04-13 Suyog Dutt Jain , Bo Xiong , Kristen Grauman

Recent advances in unsupervised video object segmentation have highlighted the potential of two-stream architectures that integrate appearance and motion cues. However, fully leveraging these complementary sources of information requires…

Computer Vision and Pattern Recognition · Computer Science 2026-04-17 Inseok Jeon , Suhwan Cho , Minhyeok Lee , Seunghoon Lee , Minseok Kang , Jungho Lee , Chaewon Park , Donghyeong Kim , Sangyoun Lee

Instance segmentation in videos, which aims to segment and track multiple objects in video frames, has garnered a flurry of research attention in recent years. In this paper, we present a novel weakly supervised framework with…

Computer Vision and Pattern Recognition · Computer Science 2022-12-16 Liqi Yan , Qifan Wang , Siqi Ma , Jingang Wang , Changbin Yu

Storing intermediate frame segmentations as memory for long-range context modeling, spatial-temporal memory-based methods have recently showcased impressive results in semi-supervised video object segmentation (SVOS). However, these methods…

Computer Vision and Pattern Recognition · Computer Science 2024-03-19 Hantao Zhou , Runze Hu , Xiu Li

In this work, we propose \textit{MVFuseNet}, a novel end-to-end method for joint object detection and motion forecasting from a temporal sequence of LiDAR data. Most existing methods operate in a single view by projecting data in either…

Computer Vision and Pattern Recognition · Computer Science 2021-04-23 Ankit Laddha , Shivam Gautam , Stefan Palombo , Shreyash Pandey , Carlos Vallespi-Gonzalez

Semi-supervised video object segmentation (VOS) aims to segment a few moving objects in a video sequence, where these objects are specified by annotation of first frame. The optical flow has been considered in many existing semi-supervised…

Computer Vision and Pattern Recognition · Computer Science 2021-11-23 Ziyang Liu , Jingmeng Liu , Weihai Chen , Xingming Wu , Zhengguo Li

Although deep networks have been widely adopted, one of their shortcomings has been their blackbox nature. One particularly difficult problem in machine learning is multivariate time series (MVTS) classification. MVTS data arise in many…

Machine Learning · Computer Science 2020-08-04 Naveen Madiraju , Homa Karimabadi

Few-Shot Video Object Segmentation (FSVOS) aims to segment objects in a query video with the same category defined by a few annotated support images. However, this task was seldom explored. In this work, based on IPMT, a state-of-the-art…

Computer Vision and Pattern Recognition · Computer Science 2023-09-21 Nian Liu , Kepan Nan , Wangbo Zhao , Yuanwei Liu , Xiwen Yao , Salman Khan , Hisham Cholakkal , Rao Muhammad Anwer , Junwei Han , Fahad Shahbaz Khan

We present a fast and accurate visual tracking algorithm based on the multi-domain convolutional neural network (MDNet). The proposed approach accelerates feature extraction procedure and learns more discriminative models for instance…

Computer Vision and Pattern Recognition · Computer Science 2018-08-28 Ilchae Jung , Jeany Son , Mooyeol Baek , Bohyung Han

In this work we propose a capsule-based approach for semi-supervised video object segmentation. Current video object segmentation methods are frame-based and often require optical flow to capture temporal consistency across frames which can…

Computer Vision and Pattern Recognition · Computer Science 2019-10-02 Kevin Duarte , Yogesh S Rawat , Mubarak Shah

We present an approach for object segmentation in videos that combines frame-level object detection with concepts from object tracking and motion segmentation. The approach extracts temporally consistent object tubes based on an…

Computer Vision and Pattern Recognition · Computer Science 2016-08-11 Benjamin Drayer , Thomas Brox

Space-time video super-resolution (STVSR) aims to increase the spatial and temporal resolutions of low-resolution and low-frame-rate videos. Recently, deformable convolution based methods have achieved promising STVSR performance, but they…

Computer Vision and Pattern Recognition · Computer Science 2021-05-03 Gang Xu , Jun Xu , Zhen Li , Liang Wang , Xing Sun , Ming-Ming Cheng
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