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For the training of face detection network based on R-CNN framework, anchors are assigned to be positive samples if intersection-over-unions (IoUs) with ground-truth are higher than the first threshold(such as 0.7); and to be negative…

Computer Vision and Pattern Recognition · Computer Science 2018-05-01 Ce Qi , Xiaoping Chen , Pingyu Wang , Fei Su

The sensitivity of astronomical X-ray detectors is limited by the instrumental background. The background is especially important when observing low surface brightness sources that are critical for many of the science cases targeted by…

Instrumentation and Methods for Astrophysics · Physics 2022-08-18 D. R. Wilkins , S. W. Allen , E. D. Miller , M. Bautz , T. Chattopadhyay , R. Foster , C. E. Grant , S. Hermann , R. Kraft , R. G. Morris , P. Nulsen , G. Schellenberger

Face detection is a well-explored problem. Many challenges on face detectors like extreme pose, illumination, low resolution and small scales are studied in the previous work. However, previous proposed models are mostly trained and tested…

Computer Vision and Pattern Recognition · Computer Science 2018-04-23 Yuqian Zhou , Ding Liu , Thomas Huang

Depth estimation is a core task in 3D computer vision. Recent methods investigate the task of monocular depth trained with various depth sensor modalities. Every sensor has its advantages and drawbacks caused by the nature of estimates. In…

Computer Vision and Pattern Recognition · Computer Science 2022-05-11 HyunJun Jung , Patrick Ruhkamp , Guangyao Zhai , Nikolas Brasch , Yitong Li , Yannick Verdie , Jifei Song , Yiren Zhou , Anil Armagan , Slobodan Ilic , Ales Leonardis , Benjamin Busam

Environment perception is the task for intelligent vehicles on which all subsequent steps rely. A key part of perception is to safely detect other road users such as vehicles, pedestrians, and cyclists. With modern deep learning techniques…

Computer Vision and Pattern Recognition · Computer Science 2020-07-13 Florian Kraus , Klaus Dietmayer

Understanding and mitigating flicker effects caused by rapid variations in light intensity is critical for enhancing the performance of event cameras in diverse environments. This paper introduces an innovative autonomous mechanism for…

Computer Vision and Pattern Recognition · Computer Science 2025-11-05 Mehdi Sefidgar Dilmaghani , Waseem Shariff , Cian Ryan , Joe Lemley , Peter Corcoran

Interfaces based on projection screens have become increasingly more popular in recent years, mainly due to the large screen size and resolution that they provide, as well as their stereo-vision capabilities. This work shows a local method…

Computer Vision and Pattern Recognition · Computer Science 2014-11-25 Miguel Castañeda-Garay , Oscar Belmonte-Fernández , Hebert Pérez-Rosés , Antonio Diaz-Tula

Event cameras triggered a paradigm shift in the computer vision community delineated by their asynchronous nature, low latency, and high dynamic range. Calibration of event cameras is always essential to account for the sensor intrinsic…

Computer Vision and Pattern Recognition · Computer Science 2024-11-26 Mohammed Salah , Abdulla Ayyad , Muhammad Humais , Daniel Gehrig , Abdelqader Abusafieh , Lakmal Seneviratne , Davide Scaramuzza , Yahya Zweiri

Binary Neural Networks (BNNs) are increasingly preferred over full-precision Convolutional Neural Networks(CNNs) to reduce the memory and computational requirements of inference processing with minimal accuracy drop. BNNs convert CNN model…

Hardware Architecture · Computer Science 2023-03-21 Sairam Sri Vatsavai , Venkata Sai Praneeth Karempudi , Ishan Thakkar

The rapid proliferation of drones requires balancing innovation with regulation. To address security and privacy concerns, techniques for drone detection have attracted significant attention.Passive solutions, such as frame camera-based…

Computer Vision and Pattern Recognition · Computer Science 2026-03-09 Kuan Dai , Hongxin Zhang , Sheng Zhong , Yi Zhou

In this research, we propose a new 3D object detector with a trustworthy depth estimation, dubbed BEVDepth, for camera-based Bird's-Eye-View (BEV) 3D object detection. Our work is based on a key observation -- depth estimation in recent…

Computer Vision and Pattern Recognition · Computer Science 2022-12-01 Yinhao Li , Zheng Ge , Guanyi Yu , Jinrong Yang , Zengran Wang , Yukang Shi , Jianjian Sun , Zeming Li

Event cameras are a new type of image sensors that output changes in light intensity (events) instead of absolute intensity values. They have a very high temporal resolution and a high dynamic range. In this paper, we propose a method to…

Computer Vision and Pattern Recognition · Computer Science 2021-03-23 Hamid Sarmadi , Rafael Muñoz-Salinas , Miguel A. Olivares-Mendez , Rafael Medina-Carnicer

The corner-based detection paradigm enjoys the potential to produce high-quality boxes. But the development is constrained by three factors: 1) Hard to match corners. Heuristic corner matching algorithms can lead to incorrect boxes,…

Computer Vision and Pattern Recognition · Computer Science 2024-11-26 Chenglong Liu , Jintao Liu , Haorao Wei , Jinze Yang , Liangyu Xu , Yuchen Guo , Lu Fang

Differentiable rendering has received increasing interest for image-based inverse problems. It can benefit traditional optimization-based solutions to inverse problems, but also allows for self-supervision of learning-based approaches for…

Computer Vision and Pattern Recognition · Computer Science 2021-04-02 Linjie Lyu , Marc Habermann , Lingjie Liu , Mallikarjun B R , Ayush Tewari , Christian Theobalt

Space-based X-ray detectors are subject to significant fluxes of charged particles in orbit, notably energetic cosmic ray protons, contributing a significant background. We develop novel machine learning algorithms to detect charged…

Instrumentation and Methods for Astrophysics · Physics 2020-12-04 D. R. Wilkins , S. W. Allen , E. D. Miller , M. Bautz , T. Chattopadhyay , S. Fort , C. E. Grant , S. Herrmann , R. Kraft , R. G. Morris , P. Nulsen

Depth estimation is of critical interest for scene understanding and accurate 3D reconstruction. Most recent approaches in depth estimation with deep learning exploit geometrical structures of standard sharp images to predict corresponding…

Computer Vision and Pattern Recognition · Computer Science 2018-09-07 Marcela Carvalho , Bertrand Le Saux , Pauline Trouvé-Peloux , Andrés Almansa , Frédéric Champagnat

State-of-the-art object detectors and trackers are developing fast. Trackers are in general more efficient than detectors but bear the risk of drifting. A question is hence raised -- how to improve the accuracy of video object…

Computer Vision and Pattern Recognition · Computer Science 2018-11-14 Hao Luo , Wenxuan Xie , Xinggang Wang , Wenjun Zeng

Multispectral images of color-thermal pairs have shown more effective than a single color channel for pedestrian detection, especially under challenging illumination conditions. However, there is still a lack of studies on how to fuse the…

Computer Vision and Pattern Recognition · Computer Science 2018-08-15 Chengyang Li , Dan Song , Ruofeng Tong , Min Tang

Most of the existing blind image Super-Resolution (SR) methods assume that the blur kernels are space-invariant. However, the blur involved in real applications are usually space-variant due to object motion, out-of-focus, etc., resulting…

Computer Vision and Pattern Recognition · Computer Science 2023-04-10 Xuhai Chen , Jiangning Zhang , Chao Xu , Yabiao Wang , Chengjie Wang , Yong Liu

Images taken in dynamic scenes may contain unwanted motion blur, which significantly degrades visual quality. Such blur causes short- and long-range region-specific smoothing artifacts that are often directional and non-uniform, which is…

Computer Vision and Pattern Recognition · Computer Science 2022-07-25 Fu-Jen Tsai , Yan-Tsung Peng , Yen-Yu Lin , Chung-Chi Tsai , Chia-Wen Lin