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Related papers: Synthetic Aperture Anomaly Imaging

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In the authors' opinion, anomaly detection systems, or ADS, seem to be the most perspective direction in the subject of attack detection, because these systems can detect, among others, the unknown (zero-day) attacks. To detect anomalies,…

Computer Vision and Pattern Recognition · Computer Science 2019-03-25 Yuri Monakhov , Oleg Nikitin , Anna Kuznetsova , Alexey Kharlamov , Alexandr Amochkin

Self-supervised deep learning-based 3D scene understanding methods can overcome the difficulty of acquiring the densely labeled ground-truth and have made a lot of advances. However, occlusions and moving objects are still some of the major…

Computer Vision and Pattern Recognition · Computer Science 2021-10-25 Jiaojiao Fang , Guizhong Liu

Nowadays, the enhanced capabilities of in-expensive imaging devices have led to a tremendous increase in the acquisition and sharing of multimedia content over the Internet. Despite advances in imaging sensor technology, annoying conditions…

Computer Vision and Pattern Recognition · Computer Science 2024-09-23 Sankaraganesh Jonna , Moushumi Medhi , Rajiv Ranjan Sahay

Access to below-canopy volumetric vegetation data is crucial for understanding ecosystem dynamics. We address the long-standing limitation of remote sensing to penetrate deep into dense canopy layers. LiDAR and radar are currently…

Computer Vision and Pattern Recognition · Computer Science 2025-08-28 Mohamed Youssef , Jian Peng , Oliver Bimber

Relighting of human images has various applications in image synthesis. For relighting, we must infer albedo, shape, and illumination from a human portrait. Previous techniques rely on human faces for this inference, based on spherical…

Graphics · Computer Science 2019-08-12 Yoshihiro Kanamori , Yuki Endo

We introduce a synthetic aperture imaging framework that takes into consideration directional dependence of the reflectivity that is to be imaged, as well as its frequency dependence. We use an $\ell_1$ minimization approach that is…

Optimization and Control · Mathematics 2016-01-05 Liliana Borcea , Miguel Moscoso , George Papanicolaou , Chrysoula Tsogka

Occluded face detection is a challenging detection task due to the large appearance variations incurred by various real-world occlusions. This paper introduces an Adversarial Occlusion-aware Face Detector (AOFD) by simultaneously detecting…

Computer Vision and Pattern Recognition · Computer Science 2018-10-02 Yujia Chen , Lingxiao Song , Ran He

In recent years, spectral clustering has become a standard method for data analysis used in a broad range of applications. In this paper we propose a new class of algorithms for multiway spectral clustering based on optimization of a…

Machine Learning · Computer Science 2016-05-05 James Voss , Mikhail Belkin , Luis Rademacher

Pedestrian detection has significantly progressed in recent years, thanks to the development of DNNs. However, detection performance at occluded scenes is still far from satisfactory, as occlusion increases the intra-class variance of…

Computer Vision and Pattern Recognition · Computer Science 2024-05-03 Shanshan Zhang , Mingqian Ji , Yang Li , Jian Yang

We present a novel deep learning approach to synthesize complete face images in the presence of large ocular region occlusions. This is motivated by recent surge of VR/AR displays that hinder face-to-face communications. Different from the…

Computer Vision and Pattern Recognition · Computer Science 2018-07-25 Yajie Zhao , Weikai Chen , Jun Xing , Xiaoming Li , Zach Bessinger , Fuchang Liu , Wangmeng Zuo , Ruigang Yang

Extreme amodal detection is the task of inferring the 2D location of objects that are not fully visible in the input image but are visible within an expanded field-of-view. This differs from amodal detection, where the object is partially…

Computer Vision and Pattern Recognition · Computer Science 2025-12-09 Changlin Song , Yunzhong Hou , Michael Randall Barnes , Rahul Shome , Dylan Campbell

We propose a novel approach to synthesizing images that are effective for training object detectors. Starting from a small set of real images, our algorithm estimates the rendering parameters required to synthesize similar images given a…

Computer Vision and Pattern Recognition · Computer Science 2015-06-30 Artem Rozantsev , Vincent Lepetit , Pascal Fua

One of the possible dangers that older people face in their daily lives is falling. Occlusion is one of the biggest challenges of vision-based fall detection systems and degrades their detection performance considerably. To tackle this…

Computer Vision and Pattern Recognition · Computer Science 2022-08-16 Sara Khalili , Hoda Mohammadzade , Mohammad Mahdi Ahmadi

Head pose estimation has become a crucial area of research in computer vision given its usefulness in a wide range of applications, including robotics, surveillance, or driver attention monitoring. One of the most difficult challenges in…

Computer Vision and Pattern Recognition · Computer Science 2025-01-23 José Celestino , Manuel Marques , Jacinto C. Nascimento

We consider the problem of building visual anomaly detection systems for mobile robots. Standard anomaly detection models are trained using large datasets composed only of non-anomalous data. However, in robotics applications, it is often…

Computer Vision and Pattern Recognition · Computer Science 2022-09-21 Dario Mantegazza , Alessandro Giusti , Luca Maria Gambardella , Jérôme Guzzi

An integrated microscope that combines different optical techniques for simultaneous imaging is demonstrated. The microscope enables spectral-domain optical coherence microscopy based on optical backscatter, and multi-photon microscopy for…

Optics · Physics 2009-11-11 C. Vinegoni , T. Ralston , W. Tan , W. Luo , D. L. Marks , S. A. Boppart

Drone-based target detection presents inherent challenges, such as the high density and overlap of targets in drone-based images, as well as the blurriness of targets under varying lighting conditions, which complicates identification.…

Computer Vision and Pattern Recognition · Computer Science 2024-11-04 Yuchen Zheng , Yuxin Jing , Jufeng Zhao , Guangmang Cui

For augmented reality (AR), it is important that virtual assets appear to `sit among' real world objects. The virtual element should variously occlude and be occluded by real matter, based on a plausible depth ordering. This occlusion…

Computer Vision and Pattern Recognition · Computer Science 2023-05-12 Jamie Watson , Mohamed Sayed , Zawar Qureshi , Gabriel J. Brostow , Sara Vicente , Oisin Mac Aodha , Michael Firman

Nowadays, there are outstanding strides towards a future with autonomous vehicles on our roads. While the perception of autonomous vehicles performs well under closed-set conditions, they still struggle to handle the unexpected. This survey…

Robotics · Computer Science 2025-11-25 Daniel Bogdoll , Maximilian Nitsche , J. Marius Zöllner

Deep learning approaches to anomaly detection have recently improved the state of the art in detection performance on complex datasets such as large collections of images or text. These results have sparked a renewed interest in the anomaly…