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Multimodal sentiment analysis has a wide range of applications due to its information complementarity in multimodal interactions. Previous works focus more on investigating efficient joint representations, but they rarely consider the…

Computer Vision and Pattern Recognition · Computer Science 2022-08-31 Rongfei Chen , Wenju Zhou , Yang Li , Huiyu Zhou

The temporal action segmentation task segments videos temporally and predicts action labels for all frames. Fully supervising such a segmentation model requires dense frame-wise action annotations, which are expensive and tedious to…

Computer Vision and Pattern Recognition · Computer Science 2022-12-20 Guodong Ding , Angela Yao

In this report, our approach to tackling the task of ActivityNet 2018 Kinetics-600 challenge is described in detail. Though spatial-temporal modelling methods, which adopt either such end-to-end framework as I3D \cite{i3d} or two-stage…

Computer Vision and Pattern Recognition · Computer Science 2018-06-28 Dongliang He , Fu Li , Qijie Zhao , Xiang Long , Yi Fu , Shilei Wen

In this paper, we address the challenging problem of spatial and temporal action detection in videos. We first develop an effective approach to localize frame-level action regions through integrating static and kinematic information by the…

Computer Vision and Pattern Recognition · Computer Science 2018-11-30 Yuancheng Ye , Xiaodong Yang , Yingli Tian

Contextual information has been shown to be powerful for semantic segmentation. This work proposes a novel Context-based Tandem Network (CTNet) by interactively exploring the spatial contextual information and the channel contextual…

Computer Vision and Pattern Recognition · Computer Science 2021-04-21 Zechao Li , Yanpeng Sun , Jinhui Tang

The ability to identify and temporally segment fine-grained human actions throughout a video is crucial for robotics, surveillance, education, and beyond. Typical approaches decouple this problem by first extracting local spatiotemporal…

Computer Vision and Pattern Recognition · Computer Science 2016-11-17 Colin Lea , Michael D. Flynn , Rene Vidal , Austin Reiter , Gregory D. Hager

Video data is with complex temporal dynamics due to various factors such as camera motion, speed variation, and different activities. To effectively capture this diverse motion pattern, this paper presents a new temporal adaptive module…

Computer Vision and Pattern Recognition · Computer Science 2021-08-19 Zhaoyang Liu , Limin Wang , Wayne Wu , Chen Qian , Tong Lu

The goal of video moment retrieval and highlight detection is to identify specific segments and highlights based on a given text query. With the rapid growth of video content and the overlap between these tasks, recent works have addressed…

Computer Vision and Pattern Recognition · Computer Science 2025-01-07 Sung Jin Um , Dongjin Kim , Sangmin Lee , Jung Uk Kim

The existing action recognition methods are mainly based on clip-level classifiers such as two-stream CNNs or 3D CNNs, which are trained from the randomly selected clips and applied to densely sampled clips during testing. However, this…

Computer Vision and Pattern Recognition · Computer Science 2020-08-26 Yin-Dong Zheng , Zhaoyang Liu , Tong Lu , Limin Wang

Human action recognition remains an important yet challenging task. This work proposes a novel action recognition system. It uses a novel Multiple View Region Adaptive Multi-resolution in time Depth Motion Map (MV-RAMDMM) formulation…

Computer Vision and Pattern Recognition · Computer Science 2019-04-15 Mahmoud Al-Faris , John P. Chiverton , Yanyan Yang , David L. Ndzi

Human actions captured in video sequences are three-dimensional signals characterizing visual appearance and motion dynamics. To learn action patterns, existing methods adopt Convolutional and/or Recurrent Neural Networks (CNNs and RNNs).…

Computer Vision and Pattern Recognition · Computer Science 2017-08-15 Lin Sun , Kui Jia , Kevin Chen , Dit Yan Yeung , Bertram E. Shi , Silvio Savarese

Spatial attention mechanism has been widely used in semantic segmentation of remote sensing images given its capability to model long-range dependencies. Many methods adopting spatial attention mechanism aggregate contextual information…

Computer Vision and Pattern Recognition · Computer Science 2023-04-25 Xiaowen Ma , Rui Che , Tingfeng Hong , Mengting Ma , Ziyan Zhao , Tian Feng , Wei Zhang

Classification of new class entities requires collecting and annotating hundreds or thousands of samples that is often prohibitively costly. Few-shot learning suggests learning to classify new classes using just a few examples. Only a small…

Computer Vision and Pattern Recognition · Computer Science 2021-07-20 Rami Ben-Ari , Mor Shpigel , Ophir Azulai , Udi Barzelay , Daniel Rotman

Most of human actions consist of complex temporal compositions of more simple actions. Action recognition tasks usually relies on complex handcrafted structures as features to represent the human action model. Convolutional Neural Nets…

Computer Vision and Pattern Recognition · Computer Science 2015-12-15 Mahdyar Ravanbakhsh , Hossein Mousavi , Mohammad Rastegari , Vittorio Murino , Larry S. Davis

Emotion recognition plays a crucial role in various domains of human-robot interaction. In long-term interactions with humans, robots need to respond continuously and accurately, however, the mainstream emotion recognition methods mostly…

Human-Computer Interaction · Computer Science 2024-01-23 Zihan Lin , Francisco Cruz , Eduardo Benitez Sandoval

In this paper we propose a geometry-aware model for video object detection. Specifically, we consider the setting that cameras can be well approximated as static, e.g. in video surveillance scenarios, and scene pseudo depth maps can…

Computer Vision and Pattern Recognition · Computer Science 2019-09-10 Dan Xu , Weidi Xie , Andrew Zisserman

With the rapid development of the Internet, users have increasingly higher expectations for the recommendation accuracy of online content consumption platforms. However, short videos often contain diverse segments, and users may not hold…

Artificial Intelligence · Computer Science 2026-04-29 Wenhao Li , Zihan Lin , Zhengxiao Guo , Jie Zhou , Shukai Liu , Yongqi Liu , Chuan Luo , Chaoyi Ma , Ruiming Tang , Han Li

Referring video object segmentation aims to segment objects within a video corresponding to a given text description. Existing transformer-based temporal modeling approaches face challenges related to query inconsistency and the limited…

Computer Vision and Pattern Recognition · Computer Science 2025-01-16 Sun-Hyuk Choi , Hayoung Jo , Seong-Whan Lee

We investigate architectures of discriminatively trained deep Convolutional Networks (ConvNets) for action recognition in video. The challenge is to capture the complementary information on appearance from still frames and motion between…

Computer Vision and Pattern Recognition · Computer Science 2014-11-13 Karen Simonyan , Andrew Zisserman

With the proliferation of imaging sensors, the volume of multi-modal imagery far exceeds the ability of human analysts to adequately consume and exploit it. Full motion video (FMV) possesses the extra challenge of containing large amounts…

Computer Vision and Pattern Recognition · Computer Science 2020-01-17 Marc Bosch , Joseph Nassar , Benjamin Ortiz , Brendan Lammers , David Lindenbaum , John Wahl , Robert Mangum , Margaret Smith