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Structured representations such as keypoints are widely used in pose transfer, conditional image generation, animation, and 3D reconstruction. However, their supervised learning requires expensive annotation for each target domain. We…

Computer Vision and Pattern Recognition · Computer Science 2023-03-27 Xingzhe He , Bastian Wandt , Helge Rhodin

Skeleton data carries valuable motion information and is widely explored in human action recognition. However, not only the motion information but also the interaction with the environment provides discriminative cues to recognize the…

Computer Vision and Pattern Recognition · Computer Science 2022-05-11 Liang Xu , Cuiling Lan , Wenjun Zeng , Cewu Lu

Skeleton-based action recognition is vital for comprehending human-centric videos and has applications in diverse domains. One of the challenges of skeleton-based action recognition is dealing with low-quality data, such as skeletons that…

Computer Vision and Pattern Recognition · Computer Science 2024-04-30 Cuiwei Liu , Youzhi Jiang , Chong Du , Zhaokui Li

It is at times important to detect human presence automatically in secure environments. This needs a shape recognition algorithm that is robust, fast and has low error rates. The algorithm needs to process camera images quickly to detect…

Computer Vision and Pattern Recognition · Computer Science 2015-06-30 Dhriti Sengupta , Merina Kundu , Jayati Ghosh Dastidar

Sometimes a simple and fast algorithm is required to detect human presence and movement with a low error rate in a controlled environment for security purposes. Here a light weight algorithm has been presented that generates alert on…

Computer Vision and Pattern Recognition · Computer Science 2015-07-01 Merina Kundu , Dhriti Sengupta , Jayati Ghosh Dastidar

Recently, skeleton-based approaches have achieved rapid progress on the basis of great success in skeleton representation. Plenty of researches focus on solving specific problems according to skeleton features. Some skeleton-based…

Computer Vision and Pattern Recognition · Computer Science 2020-12-24 Jie Li , Binglin Li , Min Gao

Skeleton-based human action recognition has been drawing more interest recently due to its low sensitivity to appearance changes and the accessibility of more skeleton data. However, even the 3D skeletons captured in practice are still…

Computer Vision and Pattern Recognition · Computer Science 2022-09-26 Cunling Bian , Wei Feng , Fanbo Meng , Song Wang

We present a new skeletal representation along with a matching framework to address the deformable shape recognition problem. The disconnectedness arises as a result of excessive regularization that we use to describe a shape at an…

Computer Vision and Pattern Recognition · Computer Science 2011-04-15 C. Aslan , A. Erdem , E. Erdem , S. Tari

In recent years, action recognition has received much attention and wide application due to its important role in video understanding. Most of the researches on action recognition methods focused on improving the performance via various…

Computer Vision and Pattern Recognition · Computer Science 2025-02-04 Pengcheng Dong , Wenbo Wan , Huaxiang Zhang , Shuai Li , Sujuan Hou , Jiande Sun

The curve skeleton is an important shape descriptor that has been utilized in various applications in computer graphics, machine vision, and artificial intelligence. In this study, the endpoint-based part-aware curve skeleton (EPCS)…

Computer Vision and Pattern Recognition · Computer Science 2023-01-10 Chunhui Li , Mingquan Zhou , Zehua Liu , Yuhe Zhang

Conventional wheeled robots are unable to traverse scientifically interesting, but dangerous, cave environments. Multi-limbed climbing robot designs, such as ReachBot, are able to grasp irregular surface features and execute climbing…

Computer Vision and Pattern Recognition · Computer Science 2023-11-08 Josselin Somerville Roberts , Paul-Emile Giacomelli , Yoni Gozlan , Julia Di

Motivated by the recent surge of criminal activities with cross-cryptocurrency trades, we introduce a new topological perspective to structural anomaly detection in dynamic multilayer networks. We postulate that anomalies in the underlying…

Cryptography and Security · Computer Science 2021-07-08 Dorcas Ofori-Boateng , Ignacio Segovia Dominguez , Murat Kantarcioglu , Cuneyt G. Akcora , Yulia R. Gel

Recent decades have seen the discovery of numerous complex materials. At the root of the complexity underlying many of these materials lies a large number of possible contending atomic- and larger-scale configurations and the intricate…

Materials Science · Physics 2023-01-30 P. Ronhovde , S. Chakrabarty , M. Sahu , K. K. Sahu , K. F. Kelton , N. Mauro , Z. Nussinov

Staircases are some of the most common building structures in urban environments. Stair detection is an important task for various applications, including the environmental perception of exoskeleton robots, humanoid robots, and rescue…

Computer Vision and Pattern Recognition · Computer Science 2022-02-07 Chen Wang , Zhongcai Pei , Shuang Qiu , Zhiyong Tang

Topological correctness is critical for segmentation of tubular structures, which pervade in biomedical images. Existing topological segmentation loss functions are primarily based on the persistent homology of the image. They match the…

Computer Vision and Pattern Recognition · Computer Science 2025-10-29 Bo Wen , Haochen Zhang , Dirk-Uwe G. Bartsch , William R. Freeman , Truong Q. Nguyen , Cheolhong An

Understanding the shape and structure of objects is undoubtedly extremely important for object recognition, but the most common pattern recognition method currently used is machine learning, which often requires a large number of training…

Computer Vision and Pattern Recognition · Computer Science 2023-06-21 Wei Hui , Liping Yu , Yiran Wei

Image landmark detection aims to automatically identify the locations of predefined fiducial points. Despite recent success in this field, higher-ordered structural modeling to capture implicit or explicit relationships among anatomical…

Computer Vision and Pattern Recognition · Computer Science 2020-12-09 Weijian Li , Yuhang Lu , Kang Zheng , Haofu Liao , Chihung Lin , Jiebo Luo , Chi-Tung Cheng , Jing Xiao , Le Lu , Chang-Fu Kuo , Shun Miao

In natural images, the scales (thickness) of object skeletons may dramatically vary among objects and object parts, making object skeleton detection a challenging problem. We present a new convolutional neural network (CNN) architecture by…

Computer Vision and Pattern Recognition · Computer Science 2018-08-14 Kai Zhao , Wei Shen , Shanghua Gao , Dandan Li , Ming-Ming Cheng

As the use of collaborative robots (cobots) in industrial manufacturing continues to grow, human action recognition for effective human-robot collaboration becomes increasingly important. This ability is crucial for cobots to act…

Computer Vision and Pattern Recognition · Computer Science 2023-06-12 Dustin Aganian , Mona Köhler , Sebastian Baake , Markus Eisenbach , Horst-Michael Gross

Reliable fall detection in elderly care requires monitoring systems that are not only accurate but also capable of producing stable, interpretable explanations of motion dynamics, a requirement that existing post hoc explainability methods…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 Mohammad Saleh , Azadeh Tabatabaei