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Artifact removal and filtering methods are inevitable parts of video coding. On one hand, new codecs and compression standards come with advanced in-loop filters and on the other hand, displays are equipped with high capacity processing…

图像与视频处理 · 电气工程与系统科学 2021-05-10 Fatemeh Nasiri , Wassim Hamidouche , Luce Morin , Nicolas Dhollande , Gildas Cocherel

Surface inspection systems are an important application domain for computer vision, as they are used for defect detection and classification in the manufacturing industry. Existing systems use hand-crafted features which require extensive…

图像与视频处理 · 电气工程与系统科学 2019-04-10 Selim Arikan , Kiran Varanasi , Didier Stricker

We propose a lightweight and accurate method for detecting anomalies in videos. Existing methods used multiple-instance learning (MIL) to determine the normal/abnormal status of each segment of the video. Recent successful researches argue…

计算机视觉与模式识别 · 计算机科学 2022-09-15 Yudai Watanabe , Makoto Okabe , Yasunori Harada , Naoji Kashima

The identification of source cameras from videos, though it is a highly relevant forensic analysis topic, has been studied much less than its counterpart that uses images. In this work we propose a method to identify the source camera of a…

计算机视觉与模式识别 · 计算机科学 2020-12-14 Derrick Timmerman , Swaroop Bennabhaktula , Enrique Alegre , George Azzopardi

In this paper, we propose to detect forged videos, of faces, in online videos. To facilitate this detection, we propose to use smaller (fewer parameters to learn) convolutional neural networks (CNN), for a data-driven approach to forged…

计算机视觉与模式识别 · 计算机科学 2020-05-19 Neilesh Sambhu , Shaun Canavan

Scene understanding plays an important role in several high-level computer vision applications, such as autonomous vehicles, intelligent video surveillance, or robotics. However, too few solutions have been proposed for indoor/outdoor scene…

计算机视觉与模式识别 · 计算机科学 2024-07-23 Ayman Beghdadi , Azeddine Beghdadi , Mohib Ullah , Faouzi Alaya Cheikh , Malik Mallem

Convolutional Neural Networks (CNNs) have achieved great success due to the powerful feature learning ability of convolution layers. Specifically, the standard convolution traverses the input images/features using a sliding window scheme to…

计算机视觉与模式识别 · 计算机科学 2021-07-26 Yong Guo , Yaofo Chen , Mingkui Tan , Kui Jia , Jian Chen , Jingdong Wang

Visual question answering by using information from multiple modalities has attracted more and more attention in recent years. However, it is a very challenging task, as the visual content and natural language have quite different…

计算机视觉与模式识别 · 计算机科学 2020-03-13 Zhaoquan Yuan , Siyuan Sun , Lixin Duan , Xiao Wu , Changsheng Xu

Previous models for video captioning often use the output from a specific layer of a Convolutional Neural Network (CNN) as video features. However, the variable context-dependent semantics in the video may make it more appropriate to…

计算机视觉与模式识别 · 计算机科学 2017-11-20 Yunchen Pu , Martin Renqiang Min , Zhe Gan , Lawrence Carin

We investigate video classification via a two-stream convolutional neural network (CNN) design that directly ingests information extracted from compressed video bitstreams. Our approach begins with the observation that all modern video…

计算机视觉与模式识别 · 计算机科学 2017-12-21 Aaron Chadha , Alhabib Abbas , Yiannis Andreopoulos

Deep learning has been demonstrated to achieve excellent results for image classification and object detection. However, the impact of deep learning on video analysis (e.g. action detection and recognition) has been limited due to…

计算机视觉与模式识别 · 计算机科学 2017-08-03 Rui Hou , Chen Chen , Mubarak Shah

Multi-face tracking in unconstrained videos is a challenging problem as faces of one person often appear drastically different in multiple shots due to significant variations in scale, pose, expression, illumination, and make-up. Existing…

计算机视觉与模式识别 · 计算机科学 2017-10-06 Shun Zhang , Jia-Bin Huang , Jongwoo Lim , Yihong Gong , Jinjun Wang , Narendra Ahuja , Ming-Hsuan Yang

The prevalence of memes on social media has created the need to sentiment analyze their underlying meanings for censoring harmful content. Meme censoring systems by machine learning raise the need for a semi-supervised learning solution to…

机器学习 · 计算机科学 2023-05-17 Pham Thai Hoang Tung , Nguyen Tan Viet , Ngo Tien Anh , Phan Duy Hung

The detection of abnormal behaviours in crowded scenes has to deal with many challenges. This paper presents an efficient method for detection and localization of anomalies in videos. Using fully convolutional neural networks (FCNs) and…

计算机视觉与模式识别 · 计算机科学 2017-05-02 Mohammad Sabokrou , Mohsen Fayyaz , Mahmood Fathy , Zahra Moayedd , Reinhard klette

In the video coding process, the perceived quality of a compressed video is evaluated by full-reference quality evaluation metrics. However, it is difficult to obtain reference videos with perfect quality. To solve this problem, it is…

图像与视频处理 · 电气工程与系统科学 2022-05-10 Liqun Lin , Zheng Wang , Jiachen He , Weiling Chen , Yiwen Xu , Tiesong Zhao

The classification of indoor scenes is a critical component in various applications, such as intelligent robotics for assistive living. While deep learning has significantly advanced this field, models often suffer from reduced performance…

计算机视觉与模式识别 · 计算机科学 2024-08-26 Willams de Lima Costa , Raul Ismayilov , Nicola Strisciuglio , Estefania Talavera Martinez

Videos contain very rich semantic information. Traditional hand-crafted features are known to be inadequate in analyzing complex video semantics. Inspired by the huge success of the deep learning methods in analyzing image, audio and text…

计算机视觉与模式识别 · 计算机科学 2015-04-09 Hao Ye , Zuxuan Wu , Rui-Wei Zhao , Xi Wang , Yu-Gang Jiang , Xiangyang Xue

Current video retrieval systems, especially those used in competitions, primarily focus on querying individual keyframes or images rather than encoding an entire clip or video segment. However, queries often describe an action or event over…

计算机视觉与模式识别 · 计算机科学 2026-04-29 Quoc-Bao Nguyen-Le , Thanh-Huy Le-Nguyen

UAV based surveillance is gaining much interest worldwide due to its extensive applications in monitoring wildlife, urban planning, disaster management, campus security, etc. These videos are analyzed for strange/odd/anomalous patterns…

计算机视觉与模式识别 · 计算机科学 2022-03-30 Girisha S , Ujjwal Verma , Manohara Pai M M , Radhika M Pai

Nowadays, many places use security cameras. Unfortunately, when an incident occurs, these technologies are used to show past events. So it can be considered as a deterrence tool than a detection tool. In this article, we will propose a deep…

计算机视觉与模式识别 · 计算机科学 2024-10-24 Fabien Poirier