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Recent object detection systems rely on two critical steps: (1) a set of object proposals is predicted as efficiently as possible, and (2) this set of candidate proposals is then passed to an object classifier. Such approaches have been…

计算机视觉与模式识别 · 计算机科学 2015-09-02 Pedro O. Pinheiro , Ronan Collobert , Piotr Dollar

There are mainly two types of state-of-the-art object detectors. On one hand, we have two-stage detectors, such as Faster R-CNN (Region-based Convolutional Neural Networks) or Mask R-CNN, that (i) use a Region Proposal Network to generate…

计算机视觉与模式识别 · 计算机科学 2018-09-03 Petru Soviany , Radu Tudor Ionescu

The use of pretrained deep neural networks represents an attractive way to achieve strong results with few data available. When specialized in dense problems such as object detection, learning local rather than global information in images…

计算机视觉与模式识别 · 计算机科学 2023-10-26 Quentin Bouniot , Romaric Audigier , Angélique Loesch , Amaury Habrard

Images acquired by computer vision systems under low light conditions have multiple characteristics like high noise, lousy illumination, reflectance, and bad contrast, which make object detection tasks difficult. Much work has been done to…

计算机视觉与模式识别 · 计算机科学 2021-08-02 Winston Chen , Tejas Shah

It is challenging to train a robust object detector under the supervised learning setting when the annotated data are scarce. Thus, previous approaches tackling this problem are in two categories: semi-supervised learning models that…

计算机视觉与模式识别 · 计算机科学 2021-04-06 Guanghan Ning , Guang Chen , Chaowei Tan , Si Luo , Liefeng Bo , Heng Huang

It is demonstrated that non-constant kernel solution, that can fit the spatial variations of the kernel can be obtained with minimum computing time. The CPU cost required with this new extension of the image subtraction method is almost the…

天体物理学 · 物理学 2007-05-23 C. Alard

We present the first evidence that adaptive learning techniques can boost the discovery of unusual objects within astronomical light curve data sets. Our method follows an active learning strategy where the learning algorithm chooses…

Optically observing and monitoring moving objects, both natural and artificial, is important to human space security. Non-sidereal tracking can improve the system's limiting magnitude for moving objects, which benefits the surveillance.…

天体物理仪器与方法 · 物理学 2024-09-05 Lei Wang , Xiaoming Zhang , Chunhai Bai , Haiwen Xie , Juan Li , Jiayi Ge , Jianfeng Wang , Xianqun Zeng , Jiantao Sun , Xiaojun Jiang

Many recent studies have shown that deep neural models are vulnerable to adversarial samples: images with imperceptible perturbations, for example, can fool image classifiers. In this paper, we present the first type-specific approach to…

计算机视觉与模式识别 · 计算机科学 2021-08-24 Omid Mohamad Nezami , Akshay Chaturvedi , Mark Dras , Utpal Garain

Accurate uncertainty estimates are essential for deploying deep object detectors in safety-critical systems. The development and evaluation of probabilistic object detectors have been hindered by shortcomings in existing performance…

计算机视觉与模式识别 · 计算机科学 2022-12-09 Georg Hess , Christoffer Petersson , Lennart Svensson

Object detection is a crucial task in computer vision that aims to identify and localize objects in images or videos. The recent advancements in deep learning and Convolutional Neural Networks (CNNs) have significantly improved the…

计算机视觉与模式识别 · 计算机科学 2023-04-12 Hrishitva Patel

Detecting novel objects from few examples has become an emerging topic in computer vision recently. However, these methods need fully annotated training images to learn new object categories which limits their applicability in real world…

计算机视觉与模式识别 · 计算机科学 2021-03-29 Amirreza Shaban , Amir Rahimi , Thalaiyasingam Ajanthan , Byron Boots , Richard Hartley

Correctly interpreting observations of sources such as type Ia supernovae (SNe Ia) require knowledge of the power spectrum of matter on AU scales - which is very hard to model accurately. Because under-dense regions account for much of the…

宇宙学与河外天体物理 · 物理学 2013-11-22 V. C. Busti , R. F. L. Holanda , C. Clarkson

We introduce a transformer-based neural network for the accurate classification of real and bogus transient detections in astronomical images. This network advances beyond the conventional convolutional neural network (CNN) methods, widely…

计算机视觉与模式识别 · 计算机科学 2025-08-26 Adi Inada , Masao Sako , Tatiana Acero-Cuellar , Federica Bianco

This paper presents a novel approach to visual objects classification based on generating simple fuzzy classifiers using local image features to distinguish between one known class and other classes. Boosting meta learning is used to find…

计算机视觉与模式识别 · 计算机科学 2016-10-05 Marcin Korytkowski , Leszek Rutkowski , Rafał Scherer

Large time-domain sky surveys generate extensive multi-year catalogs of light curves in which scientifically valuable transients, such as supernovae (SNe), are vastly outnumbered by artifacts and routine star variability. While supervised…

天体物理仪器与方法 · 物理学 2026-03-11 Semenikhin T. A. , Kornilov M. V. , Pruzhinskaya M. V. , Krushinsky V. V. , Malanchev K. L. , Dodin A.

Automated classification of supernovae (SNe) based on optical photometric light curve information is essential in the upcoming era of wide-field time domain surveys, such as the Legacy Survey of Space and Time (LSST) conducted by the Rubin…

Open-World Object Detection (OWOD) extends object detection problem to a realistic and dynamic scenario, where a detection model is required to be capable of detecting both known and unknown objects and incrementally learning newly…

计算机视觉与模式识别 · 计算机科学 2023-09-01 Ruohuan Fang , Guansong Pang , Lei Zhou , Xiao Bai , Jin Zheng

Image subtraction in astronomy is a tool for transient object discovery and characterization, particularly useful in wide fields, and is well suited for moving or photometrically varying objects such as asteroids, extra-solar planets and…

天体物理仪器与方法 · 物理学 2013-01-09 Steven Hartung

Automated photometric supernova classification has become an active area of research in recent years in light of current and upcoming imaging surveys such as the Dark Energy Survey (DES) and the Large Synoptic Survey Telescope, given that…

天体物理仪器与方法 · 物理学 2016-09-08 Michelle Lochner , Jason D. McEwen , Hiranya V. Peiris , Ofer Lahav , Max K. Winter