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Video anomaly detection under video-level labels is currently a challenging task. Previous works have made progresses on discriminating whether a video sequencecontains anomalies. However, most of them fail to accurately localize the…

Computer Vision and Pattern Recognition · Computer Science 2021-04-15 Hui Lv , Chuanwei Zhou , Chunyan Xu , Zhen Cui , Jian Yang

As a vital topic in media content interpretation, video anomaly detection (VAD) has made fruitful progress via deep neural network (DNN). However, existing methods usually follow a reconstruction or frame prediction routine. They suffer…

Computer Vision and Pattern Recognition · Computer Science 2020-08-28 Guang Yu , Siqi Wang , Zhiping Cai , En Zhu , Chuanfu Xu , Jianping Yin , Marius Kloft

Capsule endoscopy is an evolutional technique for examining and diagnosing intractable gastrointestinal diseases. Because of the huge amount of data, analyzing capsule endoscope videos is very time-consuming and labor-intensive for…

Computer Vision and Pattern Recognition · Computer Science 2021-04-08 Xinkai Zhao , Chaowei Fang , Feng Gao , De-Jun Fan , Xutao Lin , Guanbin Li

A major obstacle to building models for effective semantic segmentation, and particularly video semantic segmentation, is a lack of large and well annotated datasets. This bottleneck is particularly prohibitive in highly specialized and…

Weakly-supervised temporal action localization (WTAL) in untrimmed videos has emerged as a practical but challenging task since only video-level labels are available. Existing approaches typically leverage off-the-shelf segment-level…

Computer Vision and Pattern Recognition · Computer Science 2021-12-22 Zichen Yang , Jie Qin , Di Huang

Video capsule endoscopy is a hot topic in computer vision and medicine. Deep learning can have a positive impact on the future of video capsule endoscopy technology. It can improve the anomaly detection rate, reduce physicians' time for…

Image and Video Processing · Electrical Eng. & Systems 2022-06-17 Abhishek Srivastava , Nikhil Kumar Tomar , Ulas Bagci , Debesh Jha

We propose a novel pathology-sensitive deep learning model (PS-DeVCEM) for frame-level anomaly detection and multi-label classification of different colon diseases in video capsule endoscopy (VCE) data. Our proposed model is capable of…

Computer Vision and Pattern Recognition · Computer Science 2020-11-30 A. Mohammed , I. Farup , M. Pedersen , S. Yildirim , Ø Hovde

Classifying time series data using neural networks is a challenging problem when the length of the data varies. Video object trajectories, which are key to many of the visual surveillance applications, are often found to be of varying…

Computer Vision and Pattern Recognition · Computer Science 2018-12-19 Santhosh Kelathodi Kumaran , Debi Prosad Dogra , Partha Pratim Roy , Adway Mitra

Purpose. Early squamous cell neoplasia (ESCN) in the oesophagus is a highly treatable condition. Lesions confined to the mucosal layer can be curatively treated endoscopically. We build a computer-assisted detection (CADe) system that can…

Wireless Capsule Endoscope (WCE) is an innovative imaging device that permits physicians to examine all the areas of the Gastrointestinal (GI) tract. It is especially important for the small intestine, where traditional invasive endoscopies…

Computer Vision and Pattern Recognition · Computer Science 2015-04-24 Isabel N. Figueiredo , Carlos Leal , Luís Pinto , Pedro N. Figueiredo , Richard Tsai

Video classification has advanced tremendously over the recent years. A large part of the improvements in video classification had to do with the work done by the image classification community and the use of deep convolutional networks…

Computer Vision and Pattern Recognition · Computer Science 2015-05-26 Balakrishnan Varadarajan , George Toderici , Sudheendra Vijayanarasimhan , Apostol Natsev

Graph-based neural network models are gaining traction in the field of representation learning due to their ability to uncover latent topological relationships between entities that are otherwise challenging to identify. These models have…

Image and Video Processing · Electrical Eng. & Systems 2023-07-25 Aryan Singh , Pepijn Van de Ven , Ciarán Eising , Patrick Denny

Wireless capsule endoscopy (WCE) enables non-invasive visual assessment of the small bowel, but its clinical utility is constrained by the large volume of frames generated per examination and the difficulty of recognising subtle…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Haroon Wahab , Irfan Mehmood , Hassan Ugail

Wireless capsule endoscopy (WCE) is an effective mean for diagnosis of gastrointestinal disorders. Detection of informative scenes in WCE video could reduce the length of transmitted videos and help the diagnosis procedure. In this paper,…

Computer Vision and Pattern Recognition · Computer Science 2018-08-24 Mohsen Hajabdollahi , Reza Esfandiarpoor , Pejman Khadivi , S. M. Reza Soroushmehr , Nader Karimi , Kayvan Najarian , Shadrokh Samavi

In this paper, we propose an end-to-end 3D CNN for action detection and segmentation in videos. The proposed architecture is a unified deep network that is able to recognize and localize action based on 3D convolution features. A video is…

Computer Vision and Pattern Recognition · Computer Science 2017-12-05 Rui Hou , Chen Chen , Mubarak Shah

Ultrasound Localization Microscopy (ULM) can map microvessels at a resolution of a few micrometers (\mu m). Transcranial ULM remains challenging in presence of aberrations caused by the skull, which lead to localization errors. Herein, we…

Image and Video Processing · Electrical Eng. & Systems 2023-09-20 Paul Xing , Jonathan Porée , Brice Rauby , Antoine Malescot , Éric Martineau , Vincent Perrot , Ravi L. Rungta , Jean Provost

The interpretation and analysis of the wireless capsule endoscopy recording is a complex task which requires sophisticated computer aided decision (CAD) systems in order to help physicians with the video screening and, finally, with the…

Computer Vision and Pattern Recognition · Computer Science 2016-07-27 Santi Seguí , Michal Drozdzal , Guillem Pascual , Petia Radeva , Carolina Malagelada , Fernando Azpiroz , Jordi Vitrià

Capsule endoscopy is a method to capture images of the gastrointestinal tract and screen for diseases which might remain hidden if investigated with standard endoscopes. Due to the limited size of a video capsule, embedding AI models…

Computer Vision and Pattern Recognition · Computer Science 2026-01-29 Julia Werner , Christoph Gerum , Jorg Nick , Maxime Le Floch , Franz Brinkmann , Jochen Hampe , Oliver Bringmann

High accuracy video label prediction (classification) models are attributed to large scale data. These data could be frame feature sequences extracted by a pre-trained convolutional-neural-network, which promote the efficiency for creating…

Computer Vision and Pattern Recognition · Computer Science 2019-06-04 Feng Mao , Xiang Wu , Hui Xue , Rong Zhang

In this work for Capsule Vision Challenge 2024, we addressed the challenge of multiclass anomaly classification in video capsule Endoscopy (VCE)[1] with a variety of deep learning models, ranging from custom CNNs to advanced transformer…

Image and Video Processing · Electrical Eng. & Systems 2024-12-04 Dev Rishi Verma , Vibhor Saxena , Dhruv Sharma , Arpan Gupta