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Human pose estimation aims at locating the specific joints of humans from the images or videos. While existing deep learning-based methods have achieved high positioning accuracy, they often struggle with generalization in occlusion…

Computer Vision and Pattern Recognition · Computer Science 2024-10-15 Gangtao Han , Chunxiao Song , Song Wang , Hao Wang , Enqing Chen , Guanghui Wang

In this paper we deal with the problem of predicting action progress in videos. We argue that this is an extremely important task since it can be valuable for a wide range of interaction applications. To this end we introduce a novel…

Computer Vision and Pattern Recognition · Computer Science 2020-03-11 Federico Becattini , Tiberio Uricchio , Lorenzo Seidenari , Lamberto Ballan , Alberto Del Bimbo

We investigate architectures of discriminatively trained deep Convolutional Networks (ConvNets) for action recognition in video. The challenge is to capture the complementary information on appearance from still frames and motion between…

Computer Vision and Pattern Recognition · Computer Science 2014-11-13 Karen Simonyan , Andrew Zisserman

Segmenting highly-overlapping objects is challenging, because typically no distinction is made between real object contours and occlusion boundaries. Unlike previous two-stage instance segmentation methods, we model image formation as…

Computer Vision and Pattern Recognition · Computer Science 2021-03-24 Lei Ke , Yu-Wing Tai , Chi-Keung Tang

Accurate 3D object detection is essential for automated vehicles to navigate safely in complex real-world environments. Bird's Eye View (BEV) representations, which project multi-sensor data into a top-down spatial format, have emerged as a…

Computer Vision and Pattern Recognition · Computer Science 2025-11-07 Sanjay Kumar , Tim Brophy , Eoin Martino Grua , Ganesh Sistu , Valentina Donzella , Ciaran Eising

Anomalous activity recognition deals with identifying the patterns and events that vary from the normal stream. In a surveillance paradigm, these events range from abuse to fighting and road accidents to snatching, etc. Due to the sparse…

Computer Vision and Pattern Recognition · Computer Science 2021-01-05 R. Maqsood , UI. Bajwa , G. Saleem , Rana H. Raza , MW. Anwar

Video understanding usually requires expensive computation that prohibits its deployment, yet videos contain significant spatiotemporal redundancy that can be exploited. In particular, operating directly on the motion vectors and residuals…

Computer Vision and Pattern Recognition · Computer Science 2020-04-23 Barak Battash , Haim Barad , Hanlin Tang , Amit Bleiweiss

To effectively apply robots in working environments and assist humans, it is essential to develop and evaluate how visual grounding (VG) can affect machine performance on occluded objects. However, current VG works are limited in working…

Computation and Language · Computer Science 2021-04-15 Ke-Jyun Wang , Yun-Hsuan Liu , Hung-Ting Su , Jen-Wei Wang , Yu-Siang Wang , Winston H. Hsu , Wen-Chin Chen

Identifying oculomotor behaviors relevant for eye-tracking applications is a critical but often challenging task. Aiming to automatically learn and extract knowledge from existing eye-tracking data, we develop a novel method that creates…

Computer Vision and Pattern Recognition · Computer Science 2021-08-12 Beibin Li , Nicholas Nuechterlein , Erin Barney , Claire Foster , Minah Kim , Monique Mahony , Adham Atyabi , Li Feng , Quan Wang , Pamela Ventola , Linda Shapiro , Frederick Shic

Action recognition is a key problem in computer vision that labels videos with a set of predefined actions. Capturing both, semantic content and motion, along the video frames is key to achieve high accuracy performance on this task. Most…

Computer Vision and Pattern Recognition · Computer Science 2019-10-23 Xia Huang , Hossein Mousavi , Gemma Roig

Conventionally, spatiotemporal modeling network and its complexity are the two most concentrated research topics in video action recognition. Existing state-of-the-art methods have achieved excellent accuracy regardless of the complexity…

Computer Vision and Pattern Recognition · Computer Science 2021-01-06 Wenhao Wu , Dongliang He , Tianwei Lin , Fu Li , Chuang Gan , Errui Ding

Learning and predicting the pose parameters of a 3D hand model given an image, such as locations of hand joints, is challenging due to large viewpoint changes and articulations, and severe self-occlusions exhibited particularly in…

Computer Vision and Pattern Recognition · Computer Science 2018-05-23 Qi Ye , Tae-Kyun Kim

Actionness was introduced to quantify the likelihood of containing a generic action instance at a specific location. Accurate and efficient estimation of actionness is important in video analysis and may benefit other relevant tasks such as…

Computer Vision and Pattern Recognition · Computer Science 2016-04-26 Limin Wang , Yu Qiao , Xiaoou Tang , Luc Van Gool

Recently, attempts have been made to collect millions of videos to train CNN models for action recognition in videos. However, curating such large-scale video datasets requires immense human labor, and training CNNs on millions of videos…

Computer Vision and Pattern Recognition · Computer Science 2015-12-23 Shugao Ma , Sarah Adel Bargal , Jianming Zhang , Leonid Sigal , Stan Sclaroff

Given the enormous number of instructional videos available online, learning a diverse array of multi-step task models from videos is an appealing goal. We introduce a new pre-trained video model, VideoTaskformer, focused on representing…

Computer Vision and Pattern Recognition · Computer Science 2023-03-24 Medhini Narasimhan , Licheng Yu , Sean Bell , Ning Zhang , Trevor Darrell

Reasoning about potential occlusions is essential for robots to efficiently predict whether an object exists in an environment. Though existing work shows that a robot with active perception can achieve various tasks, it is still unclear if…

Robotics · Computer Science 2021-07-30 Mengdi Li , Cornelius Weber , Matthias Kerzel , Jae Hee Lee , Zheni Zeng , Zhiyuan Liu , Stefan Wermter

Online temporal action localization from an untrimmed video stream is a challenging problem in computer vision. It is challenging because of i) in an untrimmed video stream, more than one action instance may appear, including background…

Computer Vision and Pattern Recognition · Computer Science 2020-03-18 Da-Hye Yoon , Nam-Gyu Cho , Seong-Whan Lee

Video anomaly detection is a challenging task in the computer vision community. Most single task-based methods do not consider the independence of unique spatial and temporal patterns, while two-stream structures lack the exploration of the…

Computer Vision and Pattern Recognition · Computer Science 2022-07-28 Yang Liu , Jing Liu , Mengyang Zhao , Dingkang Yang , Xiaoguang Zhu , Liang Song

Occlusion handling is one of the challenges of object detection and segmentation, and scene understanding. Because objects appear differently when they are occluded in varying degree, angle, and locations. Therefore, determining the…

Computer Vision and Pattern Recognition · Computer Science 2022-04-28 Kaziwa Saleh , Zoltan Vamossy

Deep convolutional networks have achieved great success for object recognition in still images. However, for action recognition in videos, the improvement of deep convolutional networks is not so evident. We argue that there are two reasons…

Computer Vision and Pattern Recognition · Computer Science 2015-07-09 Limin Wang , Yuanjun Xiong , Zhe Wang , Yu Qiao