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Action recognition is computationally expensive. In this paper, we address the problem of frame selection to improve the accuracy of action recognition. In particular, we show that selecting good frames helps in action recognition…

Computer Vision and Pattern Recognition · Computer Science 2020-12-22 Shreyank N Gowda , Marcus Rohrbach , Laura Sevilla-Lara

Deep neural networks have become the primary learning technique for object recognition. Videos, unlike still images, are temporally coherent which makes the application of deep networks non-trivial. Here, we investigate how motion can aid…

Computer Vision and Pattern Recognition · Computer Science 2015-09-08 Ivan Bogun , Anelia Angelova , Navdeep Jaitly

This paper proposes a hybrid fusion-based deep learning approach based on two different modalities, audio and video, to improve human activity recognition and violence detection in public places. To take advantage of audiovisual fusion,…

Computer Vision and Pattern Recognition · Computer Science 2024-08-06 Pooya Janani , Amirabolfazl Suratgar , Afshin Taghvaeipour

Learning actions from human demonstration video is promising for intelligent robotic systems. Extracting the exact section and re-observing the extracted video section in detail is important for imitating complex skills because human…

Computer Vision and Pattern Recognition · Computer Science 2021-01-14 Iori Yanokura , Naoki Wake , Kazuhiro Sasabuchi , Katsushi Ikeuchi , Masayuki Inaba

Understanding human behavior and activity facilitates advancement of numerous real-world applications, and is critical for video analysis. Despite the progress of action recognition algorithms in trimmed videos, the majority of real-world…

Computer Vision and Pattern Recognition · Computer Science 2021-10-04 Elahe Vahdani , Yingli Tian

In recent years, the field of learned video compression has witnessed rapid advancement, exemplified by the latest neural video codecs DCVC-DC that has outperformed the upcoming next-generation codec ECM in terms of compression ratio.…

Image and Video Processing · Electrical Eng. & Systems 2024-07-24 Zidian Qiu , Zongyao He , Zhi Jin

The computer vision community is currently focusing on solving action recognition problems in real videos, which contain thousands of samples with many challenges. In this process, Deep Convolutional Neural Networks (D-CNNs) have played a…

Computer Vision and Pattern Recognition · Computer Science 2018-03-22 Huy-Hieu Pham , Louahdi Khoudour , Alain Crouzil , Pablo Zegers , Sergio A. Velastin

We propose an action recognition framework using Gen- erative Adversarial Networks. Our model involves train- ing a deep convolutional generative adversarial network (DCGAN) using a large video activity dataset without la- bel information.…

Computer Vision and Pattern Recognition · Computer Science 2018-01-23 Unaiza Ahsan , Chen Sun , Irfan Essa

The popularity of Deep Learning for real-world applications is ever-growing. With the introduction of high performance hardware, applications are no longer limited to image recognition. With the introduction of more complex problems comes…

Machine Learning · Computer Science 2019-09-13 Liam Hiley , Alun Preece , Yulia Hicks

We consider the task of dimensional emotion recognition on video data using deep learning. While several previous methods have shown the benefits of training temporal neural network models such as recurrent neural networks (RNNs) on…

Computer Vision and Pattern Recognition · Computer Science 2017-01-11 Pooya Khorrami , Tom Le Paine , Kevin Brady , Charlie Dagli , Thomas S. Huang

Deep learning for human action recognition in videos is making significant progress, but is slowed down by its dependency on expensive manual labeling of large video collections. In this work, we investigate the generation of synthetic…

Computer Vision and Pattern Recognition · Computer Science 2017-07-20 César Roberto de Souza , Adrien Gaidon , Yohann Cabon , Antonio Manuel López Peña

One key challenge to learning-based video compression is that motion predictive coding, a very effective tool for video compression, can hardly be trained into a neural network. In this paper we propose the concept of PixelMotionCNN (PMCNN)…

Multimedia · Computer Science 2019-01-15 Zhibo Chen , Tianyu He , Xin Jin , Feng Wu

With the increasing demand for video content at higher resolutions, it is evermore critical to find ways to limit the complexity of video encoding tasks in order to reduce costs, power consumption and environmental impact of video services.…

Image and Video Processing · Electrical Eng. & Systems 2020-06-25 Maria Santamaria , Saverio Blasi , Ebroul Izquierdo , Marta Mrak

Video-based human action recognition is currently one of the most active research areas in computer vision. Various research studies indicate that the performance of action recognition is highly dependent on the type of features being…

Computer Vision and Pattern Recognition · Computer Science 2019-10-02 Lei Wang , Du Q. Huynh , Piotr Koniusz

As the success of deep models has led to their deployment in all areas of computer vision, it is increasingly important to understand how these representations work and what they are capturing. In this paper, we shed light on deep…

Computer Vision and Pattern Recognition · Computer Science 2018-01-08 Christoph Feichtenhofer , Axel Pinz , Richard P. Wildes , Andrew Zisserman

Deeplearning has been used to solve complex problems in various domains. As it advances, it also creates applications which become a major threat to our privacy, security and even to our Democracy. Such an application which is being…

Computer Vision and Pattern Recognition · Computer Science 2020-09-17 Rahul U , Ragul M , Raja Vignesh K , Tejeswinee K

Action recognition is so far mainly focusing on the problem of classification of hand selected preclipped actions and reaching impressive results in this field. But with the performance even ceiling on current datasets, it also appears that…

Computer Vision and Pattern Recognition · Computer Science 2019-06-05 Hilde Kuehne , Ahsan Iqbal , Alexander Richard , Juergen Gall

Video motion magnification is a technique to capture and amplify subtle motion in a video that is invisible to the naked eye. The deep learning-based prior work successfully demonstrates the modelling of the motion magnification problem…

Computer Vision and Pattern Recognition · Computer Science 2024-03-05 Hyunwoo Ha , Oh Hyun-Bin , Kim Jun-Seong , Kwon Byung-Ki , Kim Sung-Bin , Linh-Tam Tran , Ji-Yun Kim , Sung-Ho Bae , Tae-Hyun Oh

Analyzing human motion is a challenging task with a wide variety of applications in computer vision and in graphics. One such application, of particular importance in computer animation, is the retargeting of motion from one performer to…

Computer Vision and Pattern Recognition · Computer Science 2019-05-13 Kfir Aberman , Rundi Wu , Dani Lischinski , Baoquan Chen , Daniel Cohen-Or

Conventional video compression approaches use the predictive coding architecture and encode the corresponding motion information and residual information. In this paper, taking advantage of both classical architecture in the conventional…

Image and Video Processing · Electrical Eng. & Systems 2019-04-09 Guo Lu , Wanli Ouyang , Dong Xu , Xiaoyun Zhang , Chunlei Cai , Zhiyong Gao