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We present a new public dataset with a focus on simulating robotic vision tasks in everyday indoor environments using real imagery. The dataset includes 20,000+ RGB-D images and 50,000+ 2D bounding boxes of object instances densely captured…

Computer Vision and Pattern Recognition · Computer Science 2017-03-07 Phil Ammirato , Patrick Poirson , Eunbyung Park , Jana Kosecka , Alexander C. Berg

In the context of fitness coaching or for rehabilitation purposes, the motor actions of a human participant must be observed and analyzed for errors in order to provide effective feedback. This task is normally carried out by human coaches,…

Artificial Intelligence · Computer Science 2017-09-27 Felix Hülsmann , Stefan Kopp , Mario Botsch

Developing a technique for the automatic analysis of surveillance videos in order to identify the presence of violence is of broad interest. In this work, we propose a deep neural network for the purpose of recognizing violent videos. A…

Computer Vision and Pattern Recognition · Computer Science 2017-09-20 Swathikiran Sudhakaran , Oswald Lanz

Visual saliency detection aims at identifying the most visually distinctive parts in an image, and serves as a pre-processing step for a variety of computer vision and image processing tasks. To this end, the saliency detection procedure…

Computer Vision and Pattern Recognition · Computer Science 2017-02-27 Xuanyang Xi , Yongkang Luo , Fengfu Li , Peng Wang , Hong Qiao

In this work, we contribute to video saliency research in two ways. First, we introduce a new benchmark for predicting human eye movements during dynamic scene free-viewing, which is long-time urged in this field. Our dataset, named DHF1K…

Computer Vision and Pattern Recognition · Computer Science 2018-05-29 Wenguan Wang , Jianbing Shen , Fang Guo , Ming-Ming Cheng , Ali Borji

This method introduces an efficient manner of learning action categories without the need of feature estimation. The approach starts from low-level values, in a similar style to the successful CNN methods. However, rather than extracting…

Computer Vision and Pattern Recognition · Computer Science 2018-03-20 Silvia L. Pintea , Pascal S. Mettes , Jan C. van Gemert , Arnold W. M. Smeulders

Video coding, which targets to compress and reconstruct the whole frame, and feature compression, which only preserves and transmits the most critical information, stand at two ends of the scale. That is, one is with compactness and…

Computer Vision and Pattern Recognition · Computer Science 2023-07-19 Ling-Yu Duan , Jiaying Liu , Wenhan Yang , Tiejun Huang , Wen Gao

We address the problem of action detection in videos. Driven by the latest progress in object detection from 2D images, we build action models using rich feature hierarchies derived from shape and kinematic cues. We incorporate appearance…

Computer Vision and Pattern Recognition · Computer Science 2014-11-25 Georgia Gkioxari , Jitendra Malik

This paper investigates the modeling of automated machine description on sports video, which has seen much progress recently. Nevertheless, state-of-the-art approaches fall quite short of capturing how human experts analyze sports scenes.…

Computer Vision and Pattern Recognition · Computer Science 2022-08-10 Dekun Wu , He Zhao , Xingce Bao , Richard P. Wildes

To date, machine learning for human action recognition in video has been widely implemented in sports activities. Although some studies have been successful in the past, precision is still the most significant concern. In this study, we…

Computer Vision and Pattern Recognition · Computer Science 2020-12-02 Cheng Yan , Xin Li , Guoqiang Li

Crime rate is increasing proportionally with the increasing rate of the population. The most prominent approach was to introduce Closed-Circuit Television (CCTV) camera-based surveillance to tackle the issue. Video surveillance cameras have…

Computer Vision and Pattern Recognition · Computer Science 2021-12-14 Tasnim Sakib Apon , Mushfiqul Islam Chowdhury , MD Zubair Reza , Arpita Datta , Syeda Tanjina Hasan , MD. Golam Rabiul Alam

Video captioning is a popular task that challenges models to describe events in videos using natural language. In this work, we investigate the ability of various visual feature representations derived from state-of-the-art convolutional…

Computer Vision and Pattern Recognition · Computer Science 2021-01-18 Praveen S , Akhilesh Bharadwaj , Harsh Raj , Janhavi Dadhania , Ganesh Samarth C. A , Nikhil Pareek , S R M Prasanna

Training robust deep video representations has proven to be much more challenging than learning deep image representations. This is in part due to the enormous size of raw video streams and the high temporal redundancy; the true and…

Computer Vision and Pattern Recognition · Computer Science 2018-04-02 Chao-Yuan Wu , Manzil Zaheer , Hexiang Hu , R. Manmatha , Alexander J. Smola , Philipp Krähenbühl

The recent advances in Deep Convolutional Neural Networks (DCNNs) have shown extremely good results for video human action classification, however, action detection is still a challenging problem. The current action detection approaches…

Computer Vision and Pattern Recognition · Computer Science 2018-05-22 Kevin Duarte , Yogesh S Rawat , Mubarak Shah

This paper presents a motorcycle classification system for urban scenarios using Convolutional Neural Network (CNN). Significant results on image classification has been achieved using CNNs at the expense of a high computational cost for…

Computer Vision and Pattern Recognition · Computer Science 2018-08-29 Jorge E. Espinosa , Sergio A. Velastin , John W. Branch

Action recognition is an important research topic in computer vision. It is the basic work for visual understanding and has been applied in many fields. Since human actions can vary in different environments, it is difficult to infer…

Computer Vision and Pattern Recognition · Computer Science 2019-10-23 Dong Cao , Lisha Xu , Dongdong Zhang

This paper explores the impact of occlusions in video action detection. We facilitate this study by introducing five new benchmark datasets namely O-UCF and O-JHMDB consisting of synthetically controlled static/dynamic occlusions, OVIS-UCF…

Computer Vision and Pattern Recognition · Computer Science 2024-10-28 Rajat Modi , Vibhav Vineet , Yogesh Singh Rawat

We introduce a lightweight and accurate architecture for resource-efficient visual correspondence. Our method, dubbed XFeat (Accelerated Features), revisits fundamental design choices in convolutional neural networks for detecting,…

Computer Vision and Pattern Recognition · Computer Science 2024-05-01 Guilherme Potje , Felipe Cadar , Andre Araujo , Renato Martins , Erickson R. Nascimento

Due to the automatic feature extraction procedure via multi-layer nonlinear transformations, the deep learning-based visual trackers have recently achieved great success in challenging scenarios for visual tracking purposes. Although many…

Computer Vision and Pattern Recognition · Computer Science 2020-12-23 Seyed Mojtaba Marvasti-Zadeh , Hossein Ghanei-Yakhdan , Shohreh Kasaei

In the field of complex action recognition in videos, the quality of the designed model plays a crucial role in the final performance. However, artificially designed network structures often rely heavily on the researchers' knowledge and…

Computer Vision and Pattern Recognition · Computer Science 2021-04-05 Pengzhen Ren , Gang Xiao , Xiaojun Chang , Yun Xiao , Zhihui Li , Xiaojiang Chen