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Spatio-temporal action recognition has been a challenging task that involves detecting where and when actions occur. Current state-of-the-art action detectors are mostly anchor-based, requiring sensitive anchor designs and huge computations…

Computer Vision and Pattern Recognition · Computer Science 2022-03-22 Shentong Mo , Jingfei Xia , Xiaoqing Tan , Bhiksha Raj

Online continuous motion recognition is a hot topic of research since it is more practical in real life application cases. Recently, Skeleton-based approaches have become increasingly popular, demonstrating the power of using such 3D…

Computer Vision and Pattern Recognition · Computer Science 2025-11-10 Mohamed Sanim Akremi , Rim Slama , Hedi Tabia

Instance segmentation with neural networks is an essential task in environment perception. In many works, it has been observed that neural networks can predict false positive instances with high confidence values and true positives with low…

Computer Vision and Pattern Recognition · Computer Science 2026-01-13 Kira Maag , Matthias Rottmann , Serin Varghese , Fabian Hueger , Peter Schlicht , Hanno Gottschalk

Objects in videos are typically characterized by continuous smooth motion. We exploit continuous smooth motion in three ways. 1) Improved accuracy by using object motion as an additional source of supervision, which we obtain by…

Computer Vision and Pattern Recognition · Computer Science 2023-08-10 Xin Liu , Fatemeh Karimi Nejadasl , Jan C. van Gemert , Olaf Booij , Silvia L. Pintea

This paper introduces key machine learning operations that allow the realization of robust, joint 6D pose estimation of multiple instances of objects either densely packed or in unstructured piles from RGB-D data. The first objective is to…

Robotics · Computer Science 2019-10-14 Chaitanya Mitash , Bowen Wen , Kostas Bekris , Abdeslam Boularias

We introduce completion moment detection for actions - the problem of locating the moment of completion, when the action's goal is confidently considered achieved. The paper proposes a joint classification-regression recurrent model that…

Computer Vision and Pattern Recognition · Computer Science 2018-07-25 Farnoosh Heidarivincheh , Majid Mirmehdi , Dima Damen

Gestures form an important medium of communication between humans and machines. An overwhelming majority of existing gesture recognition methods are tailored to a scenario where humans and machines are located very close to each other. This…

Computer Vision and Pattern Recognition · Computer Science 2023-12-25 Shubhang Bhatnagar , Sharath Gopal , Narendra Ahuja , Liu Ren

This paper presents a user interface designed to enable computer cursor control through hand detection and gesture classification. A comprehensive hand dataset comprising 6720 image samples was collected, encompassing four distinct classes:…

Computer Vision and Pattern Recognition · Computer Science 2023-06-13 Yalda Foroutan , Ahmad Kalhor , Saeid Mohammadi Nejati , Samad Sheikhaei

Action recognition from videos, i.e., classifying a video into one of the pre-defined action types, has been a popular topic in the communities of artificial intelligence, multimedia, and signal processing. However, existing methods usually…

Computer Vision and Pattern Recognition · Computer Science 2022-09-05 Xiaodong Chen , Xinchen Liu , Wu Liu , Kun Liu , Dong Wu , Yongdong Zhang , Tao Mei

In this work, we bridge the gap between recent pose estimation and tracking work to develop a powerful method for robots to track objects in their surroundings. Motion-Nets use a segmentation model to segment the scene, and separate…

Robotics · Computer Science 2019-10-31 Felix Leeb , Arunkumar Byravan , Dieter Fox

Hand gesture-based human-computer interaction is an important problem that is well explored using color camera data. In this work we proposed a hand gesture detection system using thermal images. Our system is capable of handling multiple…

Computer Vision and Pattern Recognition · Computer Science 2023-03-07 James Ballow , Soumyabrata Dey

We propose an effective approach for spatio-temporal action localization in realistic videos. The approach first detects proposals at the frame-level and scores them with a combination of static and motion CNN features. It then tracks…

Computer Vision and Pattern Recognition · Computer Science 2015-09-29 Philippe Weinzaepfel , Zaid Harchaoui , Cordelia Schmid

Estimating the pose of a moving camera from monocular video is a challenging problem, especially due to the presence of moving objects in dynamic environments, where the performance of existing camera pose estimation methods are susceptible…

Computer Vision and Pattern Recognition · Computer Science 2022-07-20 Wang Zhao , Shaohui Liu , Hengkai Guo , Wenping Wang , Yong-Jin Liu

Markerless motion capture has become an active field of research in computer vision in recent years. Its extensive applications are known in a great variety of fields, including computer animation, human motion analysis, biomedical…

Computer Vision and Pattern Recognition · Computer Science 2022-01-10 Doan Duy Vo , Russell Butler

Defining methods for the automatic understanding of gestures is of paramount importance in many application contexts and in Virtual Reality applications for creating more natural and easy-to-use human-computer interaction methods. In this…

Computer Vision and Pattern Recognition · Computer Science 2020-09-03 Katia Lupinetti , Andrea Ranieri , Franca Giannini , Marina Monti

Different from traditional action recognition based on video segments, online action recognition aims to recognize actions from unsegmented streams of data in a continuous manner. One way for online recognition is based on the evidence…

Computer Vision and Pattern Recognition · Computer Science 2017-07-07 Chang Tang , Pichao Wang , Wanqing Li

Automatically recognizing surgical gestures is a crucial step towards a thorough understanding of surgical skill. Possible areas of application include automatic skill assessment, intra-operative monitoring of critical surgical steps, and…

Computer Vision and Pattern Recognition · Computer Science 2019-07-29 Isabel Funke , Sebastian Bodenstedt , Florian Oehme , Felix von Bechtolsheim , Jürgen Weitz , Stefanie Speidel

The employment of convolutional neural networks has led to significant performance improvement on the task of object detection. However, when applying existing detectors to continuous frames in a video, we often encounter momentary…

Computer Vision and Pattern Recognition · Computer Science 2020-01-17 Yusuke Hosoya , Masanori Suganuma , Takayuki Okatani

Gestures are essential for enhancing co-speech communication, offering visual emphasis and complementing verbal interactions. While prior work has concentrated on point-level motion or fully supervised data-driven methods, we focus on…

Computer Vision and Pattern Recognition · Computer Science 2025-03-28 Jiahui Chen , Yang Huan , Runhua Shi , Chanfan Ding , Xiaoqi Mo , Siyu Xiong , Yinong He

This work proposes a process for efficiently training a point-wise object detector that enables localizing objects and computing their 6D poses in cluttered and occluded scenes. Accurate pose estimation is typically a requirement for robust…

Computer Vision and Pattern Recognition · Computer Science 2019-02-22 Jean-Philippe Mercier , Chaitanya Mitash , Philippe Giguère , Abdeslam Boularias