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We propose TAL-Net, an improved approach to temporal action localization in video that is inspired by the Faster R-CNN object detection framework. TAL-Net addresses three key shortcomings of existing approaches: (1) we improve receptive…

Computer Vision and Pattern Recognition · Computer Science 2018-04-23 Yu-Wei Chao , Sudheendra Vijayanarasimhan , Bryan Seybold , David A. Ross , Jia Deng , Rahul Sukthankar

Action segmentation is a challenging task in high-level process analysis, typically performed on video or kinematic data obtained from various sensors. This work presents two contributions related to action segmentation on kinematic data.…

Computer Vision and Pattern Recognition · Computer Science 2024-07-15 Adam Goldbraikh , Omer Shubi , Or Rubin , Carla M Pugh , Shlomi Laufer

Action detection is an essential and challenging task, especially for densely labelled datasets of untrimmed videos. There are many real-world challenges in those datasets, such as composite action, co-occurring action, and high temporal…

Computer Vision and Pattern Recognition · Computer Science 2022-07-12 Rui Dai , Srijan Das , Francois Bremond

The multi-modality and stochastic characteristics of human behavior make motion prediction a highly challenging task, which is critical for autonomous driving. While deep learning approaches have demonstrated their great potential in this…

Computer Vision and Pattern Recognition · Computer Science 2024-03-04 Xiaqiang Tang , Weigao Sun , Siyuan Hu , Yiyang Sun , Yafeng Guo

In this paper, we proposed a effective but extensible residual one-dimensional convolution neural network as base network, based on the this network, we proposed four subnets to explore the features of skeleton sequences from each aspect.…

Computer Vision and Pattern Recognition · Computer Science 2018-08-01 Yangyang Xu , Lei Wang

Facial action units (AUs) are essential to decode human facial expressions. Researchers have focused on training AU detectors with a variety of features and classifiers. However, several issues remain. These are spatial representation,…

Computer Vision and Pattern Recognition · Computer Science 2016-08-03 Wen-Sheng Chu , Fernando De la Torre , Jeffrey F. Cohn

We propose a Few-shot Learning pipeline for 3D skeleton-based action recognition by Joint tEmporal and cAmera viewpoiNt alIgnmEnt (JEANIE). To factor out misalignment between query and support sequences of 3D body joints, we propose an…

Computer Vision and Pattern Recognition · Computer Science 2022-11-01 Lei Wang , Piotr Koniusz

Emotion recognition in user-generated videos plays an important role in human-centered computing. Existing methods mainly employ traditional two-stage shallow pipeline, i.e. extracting visual and/or audio features and training classifiers.…

Computer Vision and Pattern Recognition · Computer Science 2020-03-03 Sicheng Zhao , Yunsheng Ma , Yang Gu , Jufeng Yang , Tengfei Xing , Pengfei Xu , Runbo Hu , Hua Chai , Kurt Keutzer

In the task of emotion recognition from videos, a key improvement has been to focus on emotions over time rather than a single frame. There are many architectures to address this task such as GRUs, LSTMs, Self-Attention, Transformers, and…

Computer Vision and Pattern Recognition · Computer Science 2024-01-09 Alexander Mehta , William Yang

Graph convolutional networks (GCNs) have been widely used and achieved remarkable results in skeleton-based action recognition. We think the key to skeleton-based action recognition is a skeleton hanging in frames, so we focus on how the…

Computer Vision and Pattern Recognition · Computer Science 2023-12-07 Nguyen Huu Bao Long

Weakly-supervised temporal action localization aims to localize action instances temporal boundary and identify the corresponding action category with only video-level labels. Traditional methods mainly focus on foreground and background…

Computer Vision and Pattern Recognition · Computer Science 2021-04-08 Sanqing Qu , Guang Chen , Zhijun Li , Lijun Zhang , Fan Lu , Alois Knoll

Recognizing human actions in videos requires spatial and temporal understanding. Most existing action recognition models lack a balanced spatio-temporal understanding of videos. In this work, we propose a novel two-stream architecture,…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Dongho Lee , Jongseo Lee , Jinwoo Choi

Advanced driver assistance and automated driving systems rely on risk estimation modules to predict and avoid dangerous situations. Current methods use expensive sensor setups and complex processing pipeline, limiting their availability and…

Computer Vision and Pattern Recognition · Computer Science 2020-02-04 Ekim Yurtsever , Yongkang Liu , Jacob Lambert , Chiyomi Miyajima , Eijiro Takeuchi , Kazuya Takeda , John H. L. Hansen

Recent methods based on 3D skeleton data have achieved outstanding performance due to its conciseness, robustness, and view-independent representation. With the development of deep learning, Convolutional Neural Networks (CNN) and Long…

Computer Vision and Pattern Recognition · Computer Science 2017-07-11 Chuankun Li , Pichao Wang , Shuang Wang , Yonghong Hou , Wanqing Li

Unlike typical video action recognition, Dynamic Facial Expression Recognition (DFER) does not involve distinct moving targets but relies on localized changes in facial muscles. Addressing this distinctive attribute, we propose a…

Computer Vision and Pattern Recognition · Computer Science 2024-04-15 Linhuang Wang , Xin Kang , Fei Ding , Satoshi Nakagawa , Fuji Ren

Humans can effectively find salient regions in complex scenes. Self-attention mechanisms were introduced into Computer Vision (CV) to achieve this. Attention Augmented Convolutional Network (AANet) is a mixture of convolution and…

Computer Vision and Pattern Recognition · Computer Science 2022-06-07 Runqing Zhang , Tianshu Zhu

3D convolutional neural networks have achieved promising results for video tasks in computer vision, including video saliency prediction that is explored in this paper. However, 3D convolution encodes visual representation merely on fixed…

Computer Vision and Pattern Recognition · Computer Science 2022-01-19 Ziqiang Wang , Zhi Liu , Gongyang Li , Yang Wang , Tianhong Zhang , Lihua Xu , Jijun Wang

Despite the steady progress in video analysis led by the adoption of convolutional neural networks (CNNs), the relative improvement has been less drastic as that in 2D static image classification. Three main challenges exist including…

Computer Vision and Pattern Recognition · Computer Science 2018-07-30 Saining Xie , Chen Sun , Jonathan Huang , Zhuowen Tu , Kevin Murphy

Action recognition is an open and challenging problem in computer vision. While current state-of-the-art models offer excellent recognition results, their computational expense limits their impact for many real-world applications. In this…

Computer Vision and Pattern Recognition · Computer Science 2020-08-03 Yue Meng , Chung-Ching Lin , Rameswar Panda , Prasanna Sattigeri , Leonid Karlinsky , Aude Oliva , Kate Saenko , Rogerio Feris

Convolutional Neural Networks (CNN) have been regarded as a powerful class of models for image recognition problems. Nevertheless, it is not trivial when utilizing a CNN for learning spatio-temporal video representation. A few studies have…

Computer Vision and Pattern Recognition · Computer Science 2017-11-29 Zhaofan Qiu , Ting Yao , Tao Mei
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