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Online tracking of multiple objects in videos requires strong capacity of modeling and matching object appearances. Previous methods for learning appearance embedding mostly rely on instance-level matching without considering the temporal…

Computer Vision and Pattern Recognition · Computer Science 2021-07-07 Wei Li , Yuanjun Xiong , Shuo Yang , Mingze Xu , Yongxin Wang , Wei Xia

Image stitching seamlessly integrates images captured from varying perspectives into a single wide field-of-view image. Such integration not only broadens the captured scene but also augments holistic perception in computer vision…

Computer Vision and Pattern Recognition · Computer Science 2024-02-27 Zhiying Jiang , Xingyuan Li , Jinyuan Liu , Xin Fan , Risheng Liu

Unsupervised video object segmentation is a crucial application in video analysis without knowing any prior information about the objects. It becomes tremendously challenging when multiple objects occur and interact in a given video clip.…

Computer Vision and Pattern Recognition · Computer Science 2018-12-20 Ye Wang , Jongmoo Choi , Yueru Chen , Siyang Li , Qin Huang , Kaitai Zhang , Ming-Sui Lee , C. -C. Jay Kuo

Object tracking can be formulated as "finding the right object in a video". We observe that recent approaches for class-agnostic tracking tend to focus on the "finding" part, but largely overlook the "object" part of the task, essentially…

Computer Vision and Pattern Recognition · Computer Science 2019-10-28 Achal Dave , Pavel Tokmakov , Cordelia Schmid , Deva Ramanan

Recent research shows that neural networks models used for computer vision (e.g., YOLO and Fast R-CNN) are vulnerable to adversarial evasion attacks. Most of the existing real-world adversarial attacks against object detectors use an…

Cryptography and Security · Computer Science 2020-10-27 Shahar Hoory , Tzvika Shapira , Asaf Shabtai , Yuval Elovici

The latest generation of transformer-based vision models has proven to be superior to Convolutional Neural Network (CNN)-based models across several vision tasks, largely attributed to their remarkable prowess in relation modeling.…

Computer Vision and Pattern Recognition · Computer Science 2023-12-29 Quazi Mishkatul Alam , Bilel Tarchoun , Ihsen Alouani , Nael Abu-Ghazaleh

Video frame interpolation is a classic and challenging low-level computer vision task. Recently, deep learning based methods have achieved impressive results, and it has been proven that optical flow based methods can synthesize frames with…

Computer Vision and Pattern Recognition · Computer Science 2022-08-02 Jinfeng Liu , Lingtong Kong , Jie Yang

Light-based adversarial attacks use spatial augmented reality (SAR) techniques to fool image classifiers by altering the physical light condition with a controllable light source, e.g., a projector. Compared with physical attacks that place…

Computer Vision and Pattern Recognition · Computer Science 2022-04-26 Bingyao Huang , Haibin Ling

We propose a self-supervised learning framework for visual odometry (VO) that incorporates correlation of consecutive frames and takes advantage of adversarial learning. Previous methods tackle self-supervised VO as a local structure from…

Computer Vision and Pattern Recognition · Computer Science 2019-08-26 Shunkai Li , Fei Xue , Xin Wang , Zike Yan , Hongbin Zha

Motion blur can adversely affect a number of vision tasks, hence it is generally considered a nuisance. We instead treat motion blur as a useful signal that allows to compute the motion of objects from a single image. Drawing on the success…

Computer Vision and Pattern Recognition · Computer Science 2016-04-21 Jochen Gast , Anita Sellent , Stefan Roth

Compositing is one of the most important editing operations for images and videos. The process of improving the realism of composite results is often called harmonization. Previous approaches for harmonization mainly focus on images. In…

Computer Vision and Pattern Recognition · Computer Science 2018-09-06 Haozhi Huang , Senzhe Xu , Junxiong Cai , Wei Liu , Shimin Hu

Adversarial attacks can mislead deep learning models to make false predictions by implanting small perturbations to the original input that are imperceptible to the human eye, which poses a huge security threat to the computer vision…

Computer Vision and Pattern Recognition · Computer Science 2024-10-28 Junbin Fang , You Jiang , Canjian Jiang , Zoe L. Jiang , Siu-Ming Yiu , Chuanyi Liu

With the rapid development of Artificial Intelligence (AI), the problem of AI security has gradually emerged. Most existing machine learning algorithms may be attacked by adversarial examples. An adversarial example is a slightly modified…

Cryptography and Security · Computer Science 2018-10-19 Yingdi Wang , Wenjia Niu , Tong Chen , Yingxiao Xiang , Jingjing Liu , Gang Li , Jiqiang Liu

Discriminative representation is crucial for the association step in multi-object tracking. Recent work mainly utilizes features in single or neighboring frames for constructing metric loss and empowering networks to extract representation…

Computer Vision and Pattern Recognition · Computer Science 2022-04-06 En Yu , Zhuoling Li , Shoudong Han

Tracking by detection, the dominant approach for online multi-object tracking, alternates between localization and association steps. As a result, it strongly depends on the quality of instantaneous observations, often failing when objects…

Computer Vision and Pattern Recognition · Computer Science 2021-10-04 Pavel Tokmakov , Jie Li , Wolfram Burgard , Adrien Gaidon

We present an on-line 3D visual object tracking framework for monocular cameras by incorporating spatial knowledge and uncertainty from semantic mapping along with high frequency measurements from visual odometry. Using a combination of…

Computer Vision and Pattern Recognition · Computer Science 2016-03-15 Prateek Singhal , Ruffin White , Henrik Christensen

Human motion prediction has achieved a brilliant performance with the help of convolution-based neural networks. However, currently, there is no work evaluating the potential risk in human motion prediction when facing adversarial attacks.…

Computer Vision and Pattern Recognition · Computer Science 2024-03-27 Chengxu Duan , Zhicheng Zhang , Xiaoli Liu , Yonghao Dang , Jianqin Yin

Deep neural networks are known to be susceptible to adversarial perturbations -- small perturbations that alter the output of the network and exist under strict norm limitations. While such perturbations are usually discussed as tailored to…

Computer Vision and Pattern Recognition · Computer Science 2022-10-05 Yaniv Nemcovsky , Matan Jacoby , Alex M. Bronstein , Chaim Baskin

Deep learning drives major advances in autonomous driving (AD), where object detectors are central to perception. However, adversarial attacks pose significant threats to the reliability and safety of these systems, with physical…

Computer Vision and Pattern Recognition · Computer Science 2026-04-28 Zihui Zhu , Ziqi Zhou , Yichen Wang , Lulu Xue , Minghui Li , Shengshan Hu

In this paper we propose a novel approach for detecting and tracking objects in videos with variable background i.e. videos captured by moving cameras without any additional sensor. In a video captured by a moving camera, both the…

Computer Vision and Pattern Recognition · Computer Science 2017-05-09 Kumar S. Ray , Vijayan K. Asari , Soma Chakraborty