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Recently, transformer-based image segmentation methods have achieved notable success against previous solutions. While for video domains, how to effectively model temporal context with the attention of object instances across frames remains…

Computer Vision and Pattern Recognition · Computer Science 2022-06-08 Xiang Li , Jinglu Wang , Xiao Li , Yan Lu

Current state-of-the-art human activity recognition is focused on the classification of temporally trimmed videos in which only one action occurs per frame. We propose a simple, yet effective, method for the temporal detection of activities…

Computer Vision and Pattern Recognition · Computer Science 2016-07-14 Gurkirt Singh , Fabio Cuzzolin

This work introduces a dataset, benchmark, and challenge for the problem of video copy detection and localization. The problem comprises two distinct but related tasks: determining whether a query video shares content with a reference video…

Computer Vision and Pattern Recognition · Computer Science 2023-06-19 Ed Pizzi , Giorgos Kordopatis-Zilos , Hiral Patel , Gheorghe Postelnicu , Sugosh Nagavara Ravindra , Akshay Gupta , Symeon Papadopoulos , Giorgos Tolias , Matthijs Douze

We propose a novel scheme for human action recognition in videos, using a 3-dimensional Convolutional Neural Network (3D CNN) based classifier. Traditionally in deep learning based human activity recognition approaches, either a few random…

Computer Vision and Pattern Recognition · Computer Science 2020-02-10 S. H. Shabbeer Basha , Viswanath Pulabaigari , Snehasis Mukherjee

We address an essential problem in computer vision, that of unsupervised object segmentation in video, where a main object of interest in a video sequence should be automatically separated from its background. An efficient solution to this…

Computer Vision and Pattern Recognition · Computer Science 2017-04-20 Emanuela Haller , Marius Leordeanu

This study proposes a method for the real-time detection and recognition of targets in streetscape videos. The proposed method is based on separation confidence computation and scale synthesis optimization. We use the proposed method to…

Image and Video Processing · Electrical Eng. & Systems 2018-06-12 Liu Jian-min

In this study, we develop an unsupervised coarse-to-fine video analysis framework and prototype system to extract a salient object in a video sequence. This framework starts from tracking grid-sampled points along temporal frames, typically…

Multimedia · Computer Science 2018-09-30 Chi Zhang , Alexander Loui

High frame video (HFV) is an important investigational tool in sciences, engineering and military. In ultra-high speed imaging, the obtainable temporal, spatial and spectral resolutions are limited by the sustainable throughput of in-camera…

Multimedia · Computer Science 2015-06-16 Reza Pournaghi , Xiaolin Wu

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

Video Moment Retrieval and Highlight Detection aim to find corresponding content in the video based on a text query. Existing models usually first use contrastive learning methods to align video and text features, then fuse and extract…

Computer Vision and Pattern Recognition · Computer Science 2025-01-22 Pengcheng Zhao , Zhixian He , Fuwei Zhang , Shujin Lin , Fan Zhou

We propose a novel video object segmentation algorithm based on pixel-level matching using Convolutional Neural Networks (CNN). Our network aims to distinguish the target area from the background on the basis of the pixel-level similarity…

Computer Vision and Pattern Recognition · Computer Science 2017-08-18 Jae Shin Yoon , Francois Rameau , Junsik Kim , Seokju Lee , Seunghak Shin , In So Kweon

Detecting deepfake videos is highly challenging given the complexity of characterizing spatio-temporal artifacts. Most existing methods rely on binary classifiers trained using real and fake image sequences, therefore hindering their…

Computer Vision and Pattern Recognition · Computer Science 2025-07-22 Dat Nguyen , Marcella Astrid , Anis Kacem , Enjie Ghorbel , Djamila Aouada

In this paper, we tackle the problem of temporally consistent boundary detection and hierarchical segmentation in videos. While finding the best high-level reasoning of region assignments in videos is the focus of much recent research,…

Computer Vision and Pattern Recognition · Computer Science 2016-06-09 Margret Keuper , Thomas Brox

Real-time video analysis remains a challenging problem in computer vision, requiring efficient processing of both spatial and temporal information while maintaining computational efficiency. Existing approaches often struggle to balance…

Computer Vision and Pattern Recognition · Computer Science 2025-07-31 Shahla John

Recent co-part segmentation methods mostly operate in a supervised learning setting, which requires a large amount of annotated data for training. To overcome this limitation, we propose a self-supervised deep learning method for co-part…

Computer Vision and Pattern Recognition · Computer Science 2021-04-12 Aliaksandr Siarohin , Subhankar Roy , Stéphane Lathuilière , Sergey Tulyakov , Elisa Ricci , Nicu Sebe

Video Instance Segmentation is a fundamental computer vision task that deals with segmenting and tracking object instances across a video sequence. Most existing methods typically accomplish this task by employing a multi-stage top-down…

Computer Vision and Pattern Recognition · Computer Science 2022-04-25 Jyoti Kini , Mubarak Shah

We present a novel approach for the detection of deepfake videos using a pair of vision transformers pre-trained by a self-supervised masked autoencoding setup. Our method consists of two distinct components, one of which focuses on…

Computer Vision and Pattern Recognition · Computer Science 2024-02-12 Sayantan Das , Mojtaba Kolahdouzi , Levent Özparlak , Will Hickie , Ali Etemad

Generic event boundary detection aims to localize the generic, taxonomy-free event boundaries that segment videos into chunks. Existing methods typically require video frames to be decoded before feeding into the network, which contains…

Computer Vision and Pattern Recognition · Computer Science 2023-09-28 Libo Zhang , Xin Gu , Congcong Li , Tiejian Luo , Heng Fan

Referring Video Object Segmentation (RefVOS) seeks to segment target objects in videos guided by natural language descriptions, demanding both temporal reasoning and fine-grained visual comprehension. Existing sampling strategies for…

Computer Vision and Pattern Recognition · Computer Science 2025-10-13 Ming Dai , Sen Yang , Boqiang Duan , Wankou Yang , Jingdong Wang

Nowadays, the videos on the Internet are prevailing. The precise and in-depth understanding of the videos is a difficult but valuable problem for both platforms and researchers. The existing video understand models do well in object…

Computer Vision and Pattern Recognition · Computer Science 2021-06-02 Fan Huang