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Detecting anomalies in large, distributed systems presents several challenges. The first challenge arises from the sheer volume of data that needs to be processed. Flagging anomalies in a high-throughput environment calls for a careful…

Machine Learning · Computer Science 2025-10-07 Anupam Panwar , Himadri Pal , Jiali Chen , Kyle Cho , Riddick Jiang , Miao Zhao , Rajiv Krishnamurthy

Anomaly segmentation plays a pivotal role in identifying atypical objects in images, crucial for hazard detection in autonomous driving systems. While existing methods demonstrate noteworthy results on synthetic data, they often fail to…

Computer Vision and Pattern Recognition · Computer Science 2023-10-17 Ji Zhang , Xiao Wu , Zhi-Qi Cheng , Qi He , Wei Li

Millimeter-wave radars are being increasingly integrated into commercial vehicles to support new advanced driver-assistance systems by enabling robust and high-performance object detection, localization, as well as recognition - a key…

Signal Processing · Electrical Eng. & Systems 2022-05-02 Xiangyu Gao , Guanbin Xing , Sumit Roy , Hui Liu

Visual anomaly detection in real-world industrial settings faces two major limitations. First, most existing methods are trained on purely normal data or on unlabeled datasets assumed to be predominantly normal, presuming the absence of…

Computer Vision and Pattern Recognition · Computer Science 2026-02-05 Anindya Sundar Das , Monowar Bhuyan

The accuracy of deep learning (e.g., convolutional neural networks) for an image classification task critically relies on the amount of labeled training data. Aiming to solve an image classification task on a new domain that lacks labeled…

Computer Vision and Pattern Recognition · Computer Science 2019-01-01 Xianghong Fang , Haoli Bai , Ziyi Guo , Bin Shen , Steven Hoi , Zenglin Xu

Object detection and data association are critical components in multi-object tracking (MOT) systems. Despite the fact that the two components are dependent on each other, prior works often design detection and data association modules…

Computer Vision and Pattern Recognition · Computer Science 2021-04-06 Yongxin Wang , Kris Kitani , Xinshuo Weng

In recent years, the rapid development of generative artificial intelligence technology has significantly lowered the barrier to creating high-quality fake images, posing a serious challenge to information authenticity and credibility.…

Computer Vision and Pattern Recognition · Computer Science 2026-04-15 Haifeng Zhang , Qinghui He , Xiuli Bi , Bo Liu , Chi-Man Pun , Bin Xiao

Camouflaged object detection (COD) primarily relies on semantic or instance segmentation methods. While these methods have made significant advancements in identifying the contours of camouflaged objects, they may be inefficient or…

Computer Vision and Pattern Recognition · Computer Science 2025-01-14 Zhimeng Xin , Tianxu Wu , Shiming Chen , Shuo Ye , Zijing Xie , Yixiong Zou , Xinge You , Yufei Guo

We propose a novel unsupervised approach based on a two-stage object-centric adversarial framework that only needs object regions for detecting frame-level local anomalies in videos. The first stage consists in learning the correspondence…

Computer Vision and Pattern Recognition · Computer Science 2020-11-16 Pankaj Raj Roy , Guillaume-Alexandre Bilodeau , Lama Seoud

Recently, progress has been made in the supervised training of Convolutional Object Detectors (e.g. Faster R-CNN) for threat recognition in carry-on luggage using X-ray images. This is part of the Transportation Security Administration's…

Computer Vision and Pattern Recognition · Computer Science 2020-10-06 John B. Sigman , Gregory P. Spell , Kevin J Liang , Lawrence Carin

Although a substantial amount of studies is dedicated to morph detection, most of them fail to generalize for morph faces outside of their training paradigm. Moreover, recent morph detection methods are highly vulnerable to adversarial…

Computer Vision and Pattern Recognition · Computer Science 2022-09-20 Hossein Kashiani , Shoaib Meraj Sami , Sobhan Soleymani , Nasser M. Nasrabadi

In this paper, we propose a navigation algorithm oriented to multi-agent environment. This algorithm is expressed as a hierarchical framework that contains a Hidden Markov Model (HMM) and a Deep Reinforcement Learning (DRL) structure. For…

Robotics · Computer Science 2018-07-18 Wenhao Ding , Shuaijun Li , Huihuan Qian

Object detection plays an important role in various visual applications. However, the precision and speed of detector are usually contradictory. One main reason for fast detectors' precision reduction is that small objects are hard to be…

Computer Vision and Pattern Recognition · Computer Science 2019-05-23 Siyang Sun , Yingjie Yin , Xingang Wang , De Xu , Yuan Zhao , Haifeng Shen

Heterogeneous face recognition is a challenging task due to the large modality discrepancy and insufficient cross-modal samples. Most existing works focus on discriminative feature transformation, metric learning and cross-modal face…

Computer Vision and Pattern Recognition · Computer Science 2020-08-11 Yingguo Xu , Lei Zhang , Qingyan Duan

We present our approach to unsupervised domain adaptation for single-stage object detectors on top-view grid maps in automated driving scenarios. Our goal is to train a robust object detector on grid maps generated from custom sensor data…

Computer Vision and Pattern Recognition · Computer Science 2020-02-04 Sascha Wirges , Shuxiao Ding , Christoph Stiller

In this paper, we optimize a faster region-based convolutional neural network (FRCNN) for 1-dimensional (1D) signal processing and electromagnetic spectrum sensing. We target a cluttered radio frequency (RF) environment, where multiple RF…

Signal Processing · Electrical Eng. & Systems 2023-02-21 Todd Morehouse , Charles Montes , Ruolin Zhou

Facial action unit (AU) detection in the wild is a challenging problem, due to the unconstrained variability in facial appearances and the lack of accurate annotations. Most existing methods depend on either impractical labor-intensive…

Computer Vision and Pattern Recognition · Computer Science 2021-06-22 Zhiwen Shao , Jianfei Cai , Tat-Jen Cham , Xuequan Lu , Lizhuang Ma

Unsupervised object discovery aims to localize objects in images, while removing the dependence on annotations required by most deep learning-based methods. To address this problem, we propose a fully unsupervised, bottom-up approach, for…

Computer Vision and Pattern Recognition · Computer Science 2022-12-21 Sandra Kara , Hejer Ammar , Florian Chabot , Quoc-Cuong Pham

Image segmentation is a crucial task in computer vision, with wide-ranging applications in industry. The Segment Anything Model (SAM) has recently attracted intensive attention; however, its application in industrial inspection,…

Computer Vision and Pattern Recognition · Computer Science 2024-09-17 Zheming Zuo , Joseph Smith , Jonathan Stonehouse , Boguslaw Obara

Accurate and robust object detection is critical for autonomous driving. Image-based detectors face difficulties caused by low visibility in adverse weather conditions. Thus, radar-camera fusion is of particular interest but presents…

Computer Vision and Pattern Recognition · Computer Science 2023-07-18 Huawei Sun , Hao Feng , Georg Stettinger , Lorenzo Servadei , Robert Wille