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Related papers: Learning Representative Temporal Features for Acti…

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The objective of this paper is self-supervised learning of spatio-temporal embeddings from video, suitable for human action recognition. We make three contributions: First, we introduce the Dense Predictive Coding (DPC) framework for…

Computer Vision and Pattern Recognition · Computer Science 2019-09-30 Tengda Han , Weidi Xie , Andrew Zisserman

With the advent of 2-dimensional Convolution Neural Networks (2D CNNs), the face recognition accuracy has reached above 99%. However, face recognition is still a challenge in real world conditions. A video, instead of an image, as an input…

Computer Vision and Pattern Recognition · Computer Science 2021-02-03 Nayaneesh Kumar Mishra , Satish Kumar Singh

Convolutional neural networks (CNNs) have been extensively applied for image recognition problems giving state-of-the-art results on recognition, detection, segmentation and retrieval. In this work we propose and evaluate several deep…

Computer Vision and Pattern Recognition · Computer Science 2015-04-14 Joe Yue-Hei Ng , Matthew Hausknecht , Sudheendra Vijayanarasimhan , Oriol Vinyals , Rajat Monga , George Toderici

In this paper, we are interested in self-supervised learning the motion cues in videos using dynamic motion filters for a better motion representation to finally boost human action recognition in particular. Thus far, the vision community…

Computer Vision and Pattern Recognition · Computer Science 2019-04-26 Ali Diba , Vivek Sharma , Luc Van Gool , Rainer Stiefelhagen

Human activity recognition is one of the most important tasks in computer vision and has proved useful in different fields such as healthcare, sports training and security. There are a number of approaches that have been explored to solve…

Computer Vision and Pattern Recognition · Computer Science 2023-05-01 Sheryl Mathew , Annapoorani Subramanian , Pooja , Balamurugan MS , Manoj Kumar Rajagopal

The success of deep neural networks generally requires a vast amount of training data to be labeled, which is expensive and unfeasible in scale, especially for video collections. To alleviate this problem, in this paper, we propose…

Computer Vision and Pattern Recognition · Computer Science 2019-04-05 Longlong Jing , Xiaodong Yang , Jingen Liu , Yingli Tian

Infrared human action recognition has many advantages, i.e., it is insensitive to illumination change, appearance variability, and shadows. Existing methods for infrared action recognition are either based on spatial or local temporal…

Computer Vision and Pattern Recognition · Computer Science 2019-09-19 Yang Liu , Zhaoyang Lu , Jing Li , Tao Yang , Chao Yao

The abundance of instructional videos and their narrations over the Internet offers an exciting avenue for understanding procedural activities. In this work, we propose to learn video representation that encodes both action steps and their…

Computer Vision and Pattern Recognition · Computer Science 2023-04-03 Yiwu Zhong , Licheng Yu , Yang Bai , Shangwen Li , Xueting Yan , Yin Li

We present a new data-driven video inpainting method for recovering missing regions of video frames. A novel deep learning architecture is proposed which contains two sub-networks: a temporal structure inference network and a spatial detail…

Computer Vision and Pattern Recognition · Computer Science 2018-12-04 Chuan Wang , Haibin Huang , Xiaoguang Han , Jue Wang

Understanding human actions in wild videos is an important task with a broad range of applications. In this paper we propose a novel approach named Hierarchical Attention Network (HAN), which enables to incorporate static spatial…

Computer Vision and Pattern Recognition · Computer Science 2016-07-22 Yilin Wang , Suhang Wang , Jiliang Tang , Neil O'Hare , Yi Chang , Baoxin Li

Understanding accurate information on human behaviours is one of the most important tasks in machine intelligence. Human Activity Recognition that aims to understand human activities from a video is a challenging task due to various…

Computer Vision and Pattern Recognition · Computer Science 2021-06-25 Ivaxi Sheth

Effective processing of video input is essential for the recognition of temporally varying events such as human actions. Motivated by the often distinctive temporal characteristics of actions in either horizontal or vertical direction, we…

Computer Vision and Pattern Recognition · Computer Science 2020-06-24 Alexandros Stergiou , Ronald Poppe

While egocentric video is becoming increasingly popular, browsing it is very difficult. In this paper we present a compact 3D Convolutional Neural Network (CNN) architecture for long-term activity recognition in egocentric videos.…

Computer Vision and Pattern Recognition · Computer Science 2017-01-06 Yair Poleg , Ariel Ephrat , Shmuel Peleg , Chetan Arora

Supervised (pre-)training currently yields state-of-the-art performance for representation learning for visual recognition, yet it comes at the cost of (1) intensive manual annotations and (2) an inherent restriction in the scope of data…

Computer Vision and Pattern Recognition · Computer Science 2016-12-05 Ruohan Gao , Dinesh Jayaraman , Kristen Grauman

Robust video scene classification models should capture the spatial (pixel-wise) and temporal (frame-wise) characteristics of a video effectively. Transformer models with self-attention which are designed to get contextualized…

Computer Vision and Pattern Recognition · Computer Science 2021-10-28 Saurabh Sahu , Palash Goyal

We introduce a novel self-supervised contrastive learning method to learn representations from unlabelled videos. Existing approaches ignore the specifics of input distortions, e.g., by learning invariance to temporal transformations.…

Computer Vision and Pattern Recognition · Computer Science 2021-12-08 Simon Jenni , Hailin Jin

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

We propose a soft attention based model for the task of action recognition in videos. We use multi-layered Recurrent Neural Networks (RNNs) with Long Short-Term Memory (LSTM) units which are deep both spatially and temporally. Our model…

Machine Learning · Computer Science 2016-02-16 Shikhar Sharma , Ryan Kiros , Ruslan Salakhutdinov

Contrastive learning has nearly closed the gap between supervised and self-supervised learning of image representations, and has also been explored for videos. However, prior work on contrastive learning for video data has not explored the…

Computer Vision and Pattern Recognition · Computer Science 2022-03-31 Ishan Dave , Rohit Gupta , Mamshad Nayeem Rizve , Mubarak Shah

In this paper, we introduce Coarse-Fine Networks, a two-stream architecture which benefits from different abstractions of temporal resolution to learn better video representations for long-term motion. Traditional Video models process…

Computer Vision and Pattern Recognition · Computer Science 2021-04-02 Kumara Kahatapitiya , Michael S. Ryoo
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