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Skeleton-based human action recognition has achieved a great interest in recent years, as skeleton data has been demonstrated to be robust to illumination changes, body scales, dynamic camera views, and complex background. Nevertheless, an…

Computer Vision and Pattern Recognition · Computer Science 2021-06-24 Chiara Plizzari , Marco Cannici , Matteo Matteucci

Multimodal time series (MTS) anomaly detection is crucial for maintaining the safety and stability of working devices (e.g., water treatment system and spacecraft), whose data are characterized by multivariate time series with diverse…

Machine Learning · Computer Science 2023-10-18 Chaoyue Ding , Shiliang Sun , Jing Zhao

The goal of sign language recognition (SLR) is to help those who are hard of hearing or deaf overcome the communication barrier. Most existing approaches can be typically divided into two lines, i.e., Skeleton-based and RGB-based methods,…

Computer Vision and Pattern Recognition · Computer Science 2024-04-09 Xiaolong Shen , Zhedong Zheng , Yi Yang

Video super-resolution (VSR) is a task that aims to reconstruct high-resolution (HR) frames from the low-resolution (LR) reference frame and multiple neighboring frames. The vital operation is to utilize the relative misaligned frames for…

Computer Vision and Pattern Recognition · Computer Science 2022-11-04 Meiqin Liu , Shuo Jin , Chao Yao , Chunyu Lin , Yao Zhao

Video Anomaly Detection (VAD) is an essential yet challenging task in signal processing. Since certain anomalies cannot be detected by isolated analysis of either temporal or spatial information, the interaction between these two types of…

Computer Vision and Pattern Recognition · Computer Science 2023-07-07 Zhiyuan Ning , Zhangxun Li , Zhengliang Guo , Zile Wang , Liang Song

Remote sensing image (RSI) denoising is an important topic in the field of remote sensing. Despite the impressive denoising performance of RSI denoising methods, most current deep learning-based approaches function as black boxes and lack…

Computer Vision and Pattern Recognition · Computer Science 2025-06-02 Jingjing Liu , Jiashun Jin , Xianchao Xiu , Jianhua Zhang , Wanquan Liu

Automated detection and segmentation of surgical devices, such as catheters or wires, in X-ray fluoroscopic images have the potential to enhance image guidance in minimally invasive heart surgeries. In this paper, we present a convolutional…

Computer Vision and Pattern Recognition · Computer Science 2025-03-05 Lin Xi , Yingliang Ma , Ethan Koland , Sandra Howell , Aldo Rinaldi , Kawal S. Rhode

This paper addresses spatio-temporal localization of human actions in video. In order to localize actions in time, we propose a recurrent localization network (RecLNet) designed to model the temporal structure of actions on the level of…

Computer Vision and Pattern Recognition · Computer Science 2018-06-29 Guilhem Chéron , Anton Osokin , Ivan Laptev , Cordelia Schmid

Surgical workflow analysis is of importance for understanding onset and persistence of surgical phases and individual tool usage across surgery and in each phase. It is beneficial for clinical quality control and to hospital administrators…

Image and Video Processing · Electrical Eng. & Systems 2019-05-28 Shanka Subhra Mondal , Rachana Sathish , Debdoot Sheet

This paper presents a novel spatiotemporal transformer network that introduces several original components to detect actions in untrimmed videos. First, the multi-feature selective semantic attention model calculates the correlations…

Computer Vision and Pattern Recognition · Computer Science 2024-05-15 Matthew Korban , Peter Youngs , Scott T. Acton

Online surgical phase recognition (SPR) underpins context-aware operating-room systems and requires committing to a prediction at every frame from past context alone. Surgical video poses three demands that natural-video recognizers do not…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Sukju Oh , Sukkyu Sun

Segmenting and recognizing surgical operation trajectories into distinct, meaningful gestures is a critical preliminary step in surgical workflow analysis for robot-assisted surgery. This step is necessary for facilitating learning from…

Computer Vision and Pattern Recognition · Computer Science 2023-08-08 Zhili Yuan , Jialin Lin , Dandan Zhang

Medical image segmentation has been significantly advanced by deep learning (DL) techniques, though the data scarcity inherent in medical applications poses a great challenge to DL-based segmentation methods. Self-supervised learning offers…

Computer Vision and Pattern Recognition · Computer Science 2024-02-13 Binyan Hu , A. K. Qin

Reducing redundancy is crucial for improving the efficiency of video recognition models. An effective approach is to select informative content from the holistic video, yielding a popular family of dynamic video recognition methods.…

Computer Vision and Pattern Recognition · Computer Science 2023-02-08 Xu Chen , Yahong Han , Xiaohan Wang , Yifan Sun , Yi Yang

Recent years have witnessed the significant progress of action recognition task with deep networks. However, most of current video networks require large memory and computational resources, which hinders their applications in practice.…

Computer Vision and Pattern Recognition · Computer Science 2020-09-16 Haisheng Su , Jing Su , Dongliang Wang , Weihao Gan , Wei Wu , Mengmeng Wang , Junjie Yan , Yu Qiao

Long-range and short-range temporal modeling are two complementary and crucial aspects of video recognition. Most of the state-of-the-arts focus on short-range spatio-temporal modeling and then average multiple snippet-level predictions to…

Computer Vision and Pattern Recognition · Computer Science 2021-08-18 Wenhao Wu , Yuxiang Zhao , Yanwu Xu , Xiao Tan , Dongliang He , Zhikang Zou , Jin Ye , Yingying Li , Mingde Yao , Zichao Dong , Yifeng Shi

In recent years, significant progress has been made in the medical image analysis domain using convolutional neural networks (CNNs). In particular, deep neural networks based on a U-shaped architecture (UNet) with skip connections have been…

Image and Video Processing · Electrical Eng. & Systems 2024-10-16 Vamsi Krishna Vasa , Wenhui Zhu , Xiwen Chen , Peijie Qiu , Xuanzhao Dong , Yalin Wang

Semantic segmentation of multichannel images is a fundamental task for many applications. Selecting an appropriate channel combination from the original multichannel image can improve the accuracy of semantic segmentation and reduce the…

Computer Vision and Pattern Recognition · Computer Science 2023-05-09 Yuanzhi Cai , Jagannath Aryal , Yuan Fang , Hong Huang , Lei Fan

In this paper, we present a spatio-temporal tendency reasoning (STR) network for recovering human body pose and shape from videos. Previous approaches have focused on how to extend 3D human datasets and temporal-based learning to promote…

Computer Vision and Pattern Recognition · Computer Science 2022-10-11 Boyang Zhang , SuPing Wu , Hu Cao , Kehua Ma , Pan Li , Lei Lin

Automatic segmentation of medical images with DL algorithms has proven to be highly successful. With most of these algorithms, inter-observer variation is an acknowledged problem, leading to sub-optimal results. This problem is even more…

Computer Vision and Pattern Recognition · Computer Science 2021-02-17 Anjali Balagopal , Howard Morgan , Michael Dohopoloski , Ramsey Timmerman , Jie Shan , Daniel F. Heitjan , Wei Liu , Dan Nguyen , Raquibul Hannan , Aurelie Garant , Neil Desai , Steve Jiang