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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…

计算机视觉与模式识别 · 计算机科学 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…

计算机视觉与模式识别 · 计算机科学 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…

计算机视觉与模式识别 · 计算机科学 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…

计算机视觉与模式识别 · 计算机科学 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…

计算机视觉与模式识别 · 计算机科学 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…

计算机视觉与模式识别 · 计算机科学 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…

计算机视觉与模式识别 · 计算机科学 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…

计算机视觉与模式识别 · 计算机科学 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…

计算机视觉与模式识别 · 计算机科学 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…

计算机视觉与模式识别 · 计算机科学 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).…

计算机视觉与模式识别 · 计算机科学 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…

计算机视觉与模式识别 · 计算机科学 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…

计算机视觉与模式识别 · 计算机科学 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…

计算机视觉与模式识别 · 计算机科学 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…

人机交互 · 计算机科学 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…

计算机视觉与模式识别 · 计算机科学 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…

人工智能 · 计算机科学 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…

计算机视觉与模式识别 · 计算机科学 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…

计算机视觉与模式识别 · 计算机科学 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…

计算机视觉与模式识别 · 计算机科学 2020-01-17 Marc Bosch , Joseph Nassar , Benjamin Ortiz , Brendan Lammers , David Lindenbaum , John Wahl , Robert Mangum , Margaret Smith