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In videos, the human's actions are of three-dimensional (3D) signals. These videos investigate the spatiotemporal knowledge of human behavior. The promising ability is investigated using 3D convolution neural networks (CNNs). The 3D CNNs…

Computer Vision and Pattern Recognition · Computer Science 2022-07-26 Arslan Syed , Eman A. Aldhahri , Muhammad Munawar Iqbal , Abid Ali , Ammar Muthanna , Harun Jamil , Faisal Jamil

Joint segmentation and classification of fine-grained actions is important for applications of human-robot interaction, video surveillance, and human skill evaluation. However, despite substantial recent progress in large-scale action…

Computer Vision and Pattern Recognition · Computer Science 2016-10-03 Colin Lea , Austin Reiter , Rene Vidal , Gregory D. Hager

Motion is a salient cue to recognize actions in video. Modern action recognition models leverage motion information either explicitly by using optical flow as input or implicitly by means of 3D convolutional filters that simultaneously…

Computer Vision and Pattern Recognition · Computer Science 2020-05-28 Heng Wang , Du Tran , Lorenzo Torresani , Matt Feiszli

We present pure-transformer based models for video classification, drawing upon the recent success of such models in image classification. Our model extracts spatio-temporal tokens from the input video, which are then encoded by a series of…

Computer Vision and Pattern Recognition · Computer Science 2021-11-02 Anurag Arnab , Mostafa Dehghani , Georg Heigold , Chen Sun , Mario Lučić , Cordelia Schmid

The video and action classification have extremely evolved by deep neural networks specially with two stream CNN using RGB and optical flow as inputs and they present outstanding performance in terms of video analysis. One of the…

Computer Vision and Pattern Recognition · Computer Science 2016-09-05 Ali Diba , Ali Mohammad Pazandeh , Luc Van Gool

Deep models, such as convolutional neural networks (CNNs) and vision transformer (ViT), demonstrate remarkable performance in image classification. However, those deep models require large data to fine-tune, which is impractical in the…

Computer Vision and Pattern Recognition · Computer Science 2025-05-30 Yihang Wu , Muhammad Owais , Reem Kateb , Ahmad Chaddad

Recent advancements in diffusion models have significantly enhanced the quality of video generation. However, fine-grained control over camera pose remains a challenge. While U-Net-based models have shown promising results for camera…

Computer Vision and Pattern Recognition · Computer Science 2024-10-15 Soon Yau Cheong , Duygu Ceylan , Armin Mustafa , Andrew Gilbert , Chun-Hao Paul Huang

Ever-increasing smartphone-generated video content demands intelligent techniques to edit and enhance videos on power-constrained devices. Most of the best performing algorithms for video understanding tasks like action recognition,…

Computer Vision and Pattern Recognition · Computer Science 2021-10-05 Rishubh Parihar , Gaurav Ramola , Ranajit Saha , Ravi Kini , Aniket Rege , Sudha Velusamy

Video diffusion models have recently made great progress in generation quality, but are still limited by the high memory and computational requirements. This is because current video diffusion models often attempt to process…

Computer Vision and Pattern Recognition · Computer Science 2024-03-22 Sihyun Yu , Weili Nie , De-An Huang , Boyi Li , Jinwoo Shin , Anima Anandkumar

This paper presents a deep learning framework for medical video segmentation. Convolution neural network (CNN) and transformer-based methods have achieved great milestones in medical image segmentation tasks due to their incredible semantic…

Computer Vision and Pattern Recognition · Computer Science 2024-02-13 Chengxi Zeng , Xinyu Yang , David Smithard , Majid Mirmehdi , Alberto M Gambaruto , Tilo Burghardt

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

Typical human actions last several seconds and exhibit characteristic spatio-temporal structure. Recent methods attempt to capture this structure and learn action representations with convolutional neural networks. Such representations,…

Computer Vision and Pattern Recognition · Computer Science 2017-06-05 Gül Varol , Ivan Laptev , Cordelia Schmid

Video is a rich and scalable source of 3D/4D visual observations, and camera control is a key capability for video generation models to produce geometrically meaningful content. Existing approaches typically learn a mapping from camera…

Computer Vision and Pattern Recognition · Computer Science 2026-05-15 Chen Hou , Christian Rupprecht

For deepfake detection, video-level detectors have not been explored as extensively as image-level detectors, which do not exploit temporal data. In this paper, we empirically show that existing approaches on image and sequence classifiers…

Computer Vision and Pattern Recognition · Computer Science 2020-10-23 Ipek Ganiyusufoglu , L. Minh Ngô , Nedko Savov , Sezer Karaoglu , Theo Gevers

We propose a novel scheme for human action recognition in videos, using a 3-dimensional Convolutional Neural Network (3D CNN) based classifier. Traditionally in deep learning based human activity recognition approaches, either a few random…

Computer Vision and Pattern Recognition · Computer Science 2020-02-10 S. H. Shabbeer Basha , Viswanath Pulabaigari , Snehasis Mukherjee

Transformer models have shown great success handling long-range interactions, making them a promising tool for modeling video. However, they lack inductive biases and scale quadratically with input length. These limitations are further…

Computer Vision and Pattern Recognition · Computer Science 2023-02-14 Javier Selva , Anders S. Johansen , Sergio Escalera , Kamal Nasrollahi , Thomas B. Moeslund , Albert Clapés

Moments capture a huge part of our lives. Accurate recognition of these moments is challenging due to the diverse and complex interpretation of the moments. Action recognition refers to the act of classifying the desired action/activity…

Computer Vision and Pattern Recognition · Computer Science 2018-09-14 Ankit Shah , Harini Kesavamoorthy , Poorva Rane , Pramati Kalwad , Alexander Hauptmann , Florian Metze

In this work, we investigate the influence of labeling methods on the classification of human movements on data recorded using a marker-based motion capture system. The dataset is labeled using two different approaches, one based on video…

Computer Vision and Pattern Recognition · Computer Science 2022-02-08 Sadique Adnan Siddiqui , Lisa Gutzeit , Frank Kirchner

Computational modeling of visual saliency has become an important research problem in recent years, with applications in video quality estimation, video compression, object tracking, retargeting, summarization, and so on. While most visual…

Multimedia · Computer Science 2016-04-26 Sayed Hossein Khatoonabadi , Ivan V. Bajic , Yufeng Shan

Real-time video surveillance, through CCTV camera systems has become essential for ensuring public safety which is a priority today. Although CCTV cameras help a lot in increasing security, these systems require constant human interaction…

Computer Vision and Pattern Recognition · Computer Science 2023-02-23 Labib Ahmed Siddique , Rabita Junhai , Tanzim Reza , Salman Sayeed Khan , Tanvir Rahman