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Deepfakes is a branch of malicious techniques that transplant a target face to the original one in videos, resulting in serious problems such as infringement of copyright, confusion of information, or even public panic. Previous efforts for…

Computer Vision and Pattern Recognition · Computer Science 2021-04-12 Zekun Sun , Yujie Han , Zeyu Hua , Na Ruan , Weijia Jia

While deep neural networks (DNNs) are an increasingly popular way to query large corpora of data, their significant runtime remains an active area of research. As a result, researchers have proposed systems and optimizations to reduce these…

Databases · Computer Science 2020-07-28 Daniel Kang , Ankit Mathur , Teja Veeramacheneni , Peter Bailis , Matei Zaharia

The recent growth of web video sharing platforms has increased the demand for systems that can efficiently browse, retrieve and summarize video content. Query-aware multi-video summarization is a promising technique that caters to this…

Computer Vision and Pattern Recognition · Computer Science 2021-05-14 Safa Messaoud , Ismini Lourentzou , Assma Boughoula , Mona Zehni , Zhizhen Zhao , Chengxiang Zhai , Alexander G. Schwing

Interactive autonomous applications require robustness of the perception engine to artifacts in unconstrained videos. In this paper, we examine the effect of camera motion on the task of action detection. We develop a novel ranking method…

Computer Vision and Pattern Recognition · Computer Science 2022-05-03 Burhan A. Mudassar , Sho Ko , Maojingjing Li , Priyabrata Saha , Saibal Mukhopadhyay

The rapid growth of online video resources has significantly promoted the development of video retrieval methods. As a standard evaluation metric for video retrieval, Average Precision (AP) assesses the overall rankings of relevant videos…

Computer Vision and Pattern Recognition · Computer Science 2024-07-23 Yang Liu , Qianqian Xu , Peisong Wen , Siran Dai , Qingming Huang

Video deraining is an important task in computer vision as the unwanted rain hampers the visibility of videos and deteriorates the robustness of most outdoor vision systems. Despite the significant success which has been achieved for video…

Computer Vision and Pattern Recognition · Computer Science 2022-01-21 Kaihao Zhang , Dongxu Li , Wenhan Luo , Wenqi Ren , Wei Liu

Most recent approaches for action recognition from video leverage deep architectures to encode the video clip into a fixed length representation vector that is then used for classification. For this to be successful, the network must be…

Computer Vision and Pattern Recognition · Computer Science 2018-08-30 Swathikiran Sudhakaran , Oswald Lanz

Event cameras are bio-inspired vision sensors that naturally capture the dynamics of a scene, filtering out redundant information. This paper presents a deep neural network approach that unlocks the potential of event cameras on a…

Computer Vision and Pattern Recognition · Computer Science 2019-01-21 Ana I. Maqueda , Antonio Loquercio , Guillermo Gallego , Narciso Garcia , Davide Scaramuzza

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 paper, Gated-ViGAT, an efficient approach for video event recognition, utilizing bottom-up (object) information, a new frame sampling policy and a gating mechanism is proposed. Specifically, the frame sampling policy uses weighted…

Computer Vision and Pattern Recognition · Computer Science 2023-01-19 Nikolaos Gkalelis , Dimitrios Daskalakis , Vasileios Mezaris

Despite the dynamic development of computer vision algorithms, the implementation of perception and control systems for autonomous vehicles such as drones and self-driving cars still poses many challenges. A video stream captured by…

Computer Vision and Pattern Recognition · Computer Science 2023-11-14 Piotr Wzorek , Tomasz Kryjak

Recently, deep learning has been utilized to solve video recognition problem due to its prominent representation ability. Deep neural networks for video tasks is highly customized and the design of such networks requires domain experts and…

Computer Vision and Pattern Recognition · Computer Science 2020-11-04 Zihao Wang , Chen Lin , Lu Sheng , Junjie Yan , Jing Shao

We introduce a gradient-based approach for learning task graphs from procedural activities, improving over hand-crafted methods. Our method directly optimizes edge weights via maximum likelihood, enabling integration into neural…

Computer Vision and Pattern Recognition · Computer Science 2025-02-27 Luigi Seminara , Giovanni Maria Farinella , Antonino Furnari

Detecting and classifying targets in video streams from surveillance cameras is a cumbersome, error-prone and expensive task. Often, the incurred costs are prohibitive for real-time monitoring. This leads to data being stored locally or…

Computer Vision and Pattern Recognition · Computer Science 2017-11-10 Lukas Cavigelli , Dominic Bernath , Michele Magno , Luca Benini

Deep learning based visual trackers entail offline pre-training on large volumes of video datasets with accurate bounding box annotations that are labor-expensive to achieve. We present a new framework to facilitate bounding box annotations…

Computer Vision and Pattern Recognition · Computer Science 2021-08-10 Kenan Dai , Jie Zhao , Lijun Wang , Dong Wang , Jianhua Li , Huchuan Lu , Xuesheng Qian , Xiaoyun Yang

Human visual system is modeled in engineering field providing feature-engineered methods which detect contrasted/surprising/unusual data into images. This data is "interesting" for humans and leads to numerous applications. Deep learning…

Computer Vision and Pattern Recognition · Computer Science 2021-09-24 Matei Mancas , Phutphalla Kong , Bernard Gosselin

Deep neural networks based methods have been proved to achieve outstanding performance on object detection and classification tasks. Despite significant performance improvement, due to the deep structures, they still require prohibitive…

Computer Vision and Pattern Recognition · Computer Science 2020-01-08 Mohammad Farhadi , Yezhou Yang

Deep neural network (DNN) models are increasingly popular in edge video analytic applications. However, the compute-intensive nature of DNN models pose challenges for energy-efficient inference on resource-constrained edge devices. Most…

Computer Vision and Pattern Recognition · Computer Science 2025-03-10 Ziyang Zhang , Yang Zhao , Ming-Ching Chang , Changyao Lin , Jie Liu

Event cameras are bio-inspired sensors that capture the per-pixel intensity changes asynchronously and produce event streams encoding the time, pixel position, and polarity (sign) of the intensity changes. Event cameras possess a myriad of…

Computer Vision and Pattern Recognition · Computer Science 2024-04-12 Xu Zheng , Yexin Liu , Yunfan Lu , Tongyan Hua , Tianbo Pan , Weiming Zhang , Dacheng Tao , Lin Wang

We introduce a cutting-edge video compression framework tailored for the age of ubiquitous video data, uniquely designed to serve machine learning applications. Unlike traditional compression methods that prioritize human visual perception,…

Computer Vision and Pattern Recognition · Computer Science 2024-10-25 Huan Cui , Qing Li , Hanling Wang , Yong jiang