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Abnormal event detection in videos is a challenging problem, partly due to the multiplicity of abnormal patterns and the lack of their corresponding annotations. In this paper, we propose new constrained pretext tasks to learn object level…

计算机视觉与模式识别 · 计算机科学 2023-04-25 Yassine Naji , Aleksandr Setkov , Angélique Loesch , Michèle Gouiffès , Romaric Audigier

We design a new approach that allows robot learning of new activities from unlabeled human example videos. Given videos of humans executing the same activity from a human's viewpoint (i.e., first-person videos), our objective is to make the…

机器人学 · 计算机科学 2017-07-25 Jangwon Lee , Michael S. Ryoo

We propose a new deep network for audio event recognition, called AENet. In contrast to speech, sounds coming from audio events may be produced by a wide variety of sources. Furthermore, distinguishing them often requires analyzing an…

多媒体 · 计算机科学 2017-01-05 Naoya Takahashi , Michael Gygli , Luc Van Gool

Deep neural networks can be unreliable in the real world especially when they heavily use {\it spurious} features for their predictions. Focusing on image classifications, we define {\it core features} as the set of visual features that are…

机器学习 · 计算机科学 2022-03-29 Sahil Singla , Soheil Feizi

In this paper, we propose a state-of-the-art video denoising algorithm based on a convolutional neural network architecture. Until recently, video denoising with neural networks had been a largely under explored domain, and existing methods…

计算机视觉与模式识别 · 计算机科学 2020-05-01 Matias Tassano , Julie Delon , Thomas Veit

Deepfake videos are causing growing concerns among communities due to their ever-increasing realism. Naturally, automated detection of forged Deepfake videos is attracting a proportional amount of interest of researchers. Current methods…

计算机视觉与模式识别 · 计算机科学 2025-02-13 Yunzhuo Chen , Naveed Akhtar , Nur Al Hasan Haldar , Ajmal Mian

When given a single frame of the video, humans can not only interpret the content of the scene, but also they are able to forecast the near future. This ability is mostly driven by their rich prior knowledge about the visual world, both in…

计算机视觉与模式识别 · 计算机科学 2016-07-27 Lamberto Ballan , Francesco Castaldo , Alexandre Alahi , Francesco Palmieri , Silvio Savarese

Personalized advertisement is a crucial task for many of the online businesses and video broadcasters. Many of today's broadcasters use the same commercial for all customers, but as one can imagine different viewers have different interests…

计算机视觉与模式识别 · 计算机科学 2018-06-25 Shervin Minaee , Imed Bouazizi , Prakash Kolan , Hossein Najafzadeh

We address the problem of temporal localization of repetitive activities in a video, i.e., the problem of identifying all segments of a video that contain some sort of repetitive or periodic motion. To do so, the proposed method represents…

计算机视觉与模式识别 · 计算机科学 2019-10-15 Giorgos Karvounas , Iason Oikonomidis , Antonis Argyros

The multi-modality and stochastic characteristics of human behavior make motion prediction a highly challenging task, which is critical for autonomous driving. While deep learning approaches have demonstrated their great potential in this…

计算机视觉与模式识别 · 计算机科学 2024-03-04 Xiaqiang Tang , Weigao Sun , Siyuan Hu , Yiyang Sun , Yafeng Guo

The ultimate goal of video prediction is not forecasting future pixel-values given some previous frames. Rather, the end goal of video prediction is to discover valuable internal representations from the vast amount of available unlabeled…

计算机视觉与模式识别 · 计算机科学 2021-10-07 Hafez Farazi , Jan Nogga , and Sven Behnke

Road accidents are quite common in almost every part of the world, and, in majority, fatal accidents are attributed to over speeding of vehicles. The tendency to over speeding is usually tried to be controlled using check points at various…

机器学习 · 计算机科学 2024-08-09 Subhasis Dasgupta , Arshi Naaz , Jayeeta Choudhury , Nancy Lahiri

Videos take a lot of time to transport over the network, hence running analytics on the live video on embedded or mobile devices has become an important system driver. Considering that such devices, e.g., surveillance cameras or AR/VR…

计算机视觉与模式识别 · 计算机科学 2021-07-16 Ran Xu , Rakesh Kumar , Pengcheng Wang , Peter Bai , Ganga Meghanath , Somali Chaterji , Subrata Mitra , Saurabh Bagchi

With the recent growth of remote work, online meetings often encounter challenging audio contexts such as background noise, music, and echo. Accurate real-time detection of music events can help to improve the user experience. In this…

音频与语音处理 · 电气工程与系统科学 2022-04-18 Chandan K. A. Reddy , Vishak Gopa , Harishchandra Dubey , Sergiy Matusevych , Ross Cutler , Robert Aichner

Understanding visual reality involves acquiring common-sense knowledge about countless regularities in the visual world, e.g., how illumination alters the appearance of objects in a scene, and how motion changes their apparent spatial…

计算机视觉与模式识别 · 计算机科学 2016-10-03 Filip Piekniewski , Patryk Laurent , Csaba Petre , Micah Richert , Dimitry Fisher , Todd Hylton

PredNet, a deep predictive coding network developed by Lotter et al., combines a biologically inspired architecture based on the propagation of prediction error with self-supervised representation learning in video. While the architecture…

计算机视觉与模式识别 · 计算机科学 2020-05-19 Roshan Rane , Edit Szügyi , Vageesh Saxena , André Ofner , Sebastian Stober

In video compression, most of the existing deep learning approaches concentrate on the visual quality of a single frame, while ignoring the useful priors as well as the temporal information of adjacent frames. In this paper, we propose a…

计算机视觉与模式识别 · 计算机科学 2019-01-16 Xiandong Meng , Xuan Deng , Shuyuan Zhu , Shuaicheng Liu , Chuan Wang , Chen Chen , Bing Zeng

Dense video captioning is an extremely challenging task since accurate and coherent description of events in a video requires holistic understanding of video contents as well as contextual reasoning of individual events. Most existing…

计算机视觉与模式识别 · 计算机科学 2019-04-09 Jonghwan Mun , Linjie Yang , Zhou Ren , Ning Xu , Bohyung Han

Various convolutional neural networks (CNNs) were developed recently that achieved accuracy comparable with that of human beings in computer vision tasks such as image recognition, object detection and tracking, etc. Most of these networks,…

计算机视觉与模式识别 · 计算机科学 2019-03-20 Tianchen Wang , Jinjun Xiong , Xiaowei Xu , Yiyu Shi

In this work\footnote {This work was supported in part by the National Science Foundation under grant IIS-1212948.}, we present a method to represent a video with a sequence of words, and learn the temporal sequencing of such words as the…

计算机视觉与模式识别 · 计算机科学 2019-06-18 Sangwoo Cho , Hassan Foroosh