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Robust 3D object detection remains a pivotal concern in the domain of autonomous field robotics. Despite notable enhancements in detection accuracy across standard datasets, real-world urban environments, characterized by their unstructured…

Robotics · Computer Science 2024-05-14 Houze Liu , Chongqing Wang , Xiaoan Zhan , Haotian Zheng , Chang Che

We propose a new method to count objects of specific categories that are significantly smaller than the ground sampling distance of a satellite image. This task is hard due to the cluttered nature of scenes where different object categories…

Computer Vision and Pattern Recognition · Computer Science 2018-09-21 Andres C. Rodriguez , Jan D. Wegner

Based on the Distributed Convolutional Neural Network(DisCNN), a straightforward object detection method is proposed. The modules of the output vector of a DisCNN with respect to a specific positive class are positively monotonic with the…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Liang Sun

Object detection is a fundamental task in computer vision and image understanding, with the goal of identifying and localizing objects of interest within an image while assigning them corresponding class labels. Traditional methods, which…

Computer Vision and Pattern Recognition · Computer Science 2024-12-09 Fnu Neha , Deepshikha Bhati , Deepak Kumar Shukla , Md Amiruzzaman

Aims. The treatment of astronomical image time series has won increasing attention in recent years. Indeed, numerous surveys following up on transient objects are in progress or under construction, such as the Vera Rubin Observatory Legacy…

Instrumentation and Methods for Astrophysics · Physics 2023-05-24 Anass Bairouk , Marc Chaumont , Dominique Fouchez , Jerome Paquet , Frédéric Comby , Julian Bautista

We present a novel detection method using a deep convolutional neural network (CNN), named AttentionNet. We cast an object detection problem as an iterative classification problem, which is the most suitable form of a CNN. AttentionNet…

Computer Vision and Pattern Recognition · Computer Science 2015-09-29 Donggeun Yoo , Sunggyun Park , Joon-Young Lee , Anthony S. Paek , In So Kweon

We propose a new sequential classification model for astronomical objects based on a recurrent convolutional neural network (RCNN) which uses sequences of images as inputs. This approach avoids the computation of light curves or difference…

Object detection systems based on the deep convolutional neural network (CNN) have recently made ground- breaking advances on several object detection benchmarks. While the features learned by these high-capacity neural networks are…

Computer Vision and Pattern Recognition · Computer Science 2016-01-15 Yuting Zhang , Kihyuk Sohn , Ruben Villegas , Gang Pan , Honglak Lee

Convolutional neural networks (CNN) allow achieving the highest accuracy for the task of object detection in images. Major challenges in further development of object detectors are false-positive detections and high demand of processing…

Computer Vision and Pattern Recognition · Computer Science 2020-12-29 David Svitov , Sergey Alyamkin

Objects in aerial images have greater variations in scale and orientation than in typical images, so detection is more difficult. Convolutional neural networks use a variety of frequency- and orientation-specific kernels to identify objects…

Computer Vision and Pattern Recognition · Computer Science 2021-11-08 Guo-Ye Yang , Xiang-Li Li , Ralph R. Martin , Shi-Min Hu

Cosmic crystallography is based on the principle that peaks in the pair separation histogram (PSH) of objects in a catalogue should be induced by the high number of topologically lensed pairs that are separated by Clifford translations, in…

Astrophysics · Physics 2011-07-19 Andrzej Marecki , Boudewijn F. Roukema , Stanislaw Bajtlik

In this paper, we present a novel approach to the estimation of strongly varying backgrounds in astronomical images by means of small objects removal and subsequent missing pixels interpolation. The method is based on the analysis of a…

Instrumentation and Methods for Astrophysics · Physics 2016-08-10 Adam Popowicz , Bogdan Smolka

This paper proposes an approach to detect moving objects in Wide Area Motion Imagery (WAMI), in which the objects are both small and well separated. Identifying the objects only using foreground appearance is difficult since a $100-$pixel…

Computer Vision and Pattern Recognition · Computer Science 2019-11-11 Yifan Zhou , Simon Maskell

In this paper, we propose an approach that exploits object segmentation in order to improve the accuracy of object detection. We frame the problem as inference in a Markov Random Field, in which each detection hypothesis scores object…

Computer Vision and Pattern Recognition · Computer Science 2015-02-17 Yukun Zhu , Raquel Urtasun , Ruslan Salakhutdinov , Sanja Fidler

In recent years, deep learning has been successfully applied in various scientific domains. Following these promising results and performances, it has recently also started being evaluated in the domain of radio astronomy. In particular,…

We propose an object detection system that relies on a multi-region deep convolutional neural network (CNN) that also encodes semantic segmentation-aware features. The resulting CNN-based representation aims at capturing a diverse set of…

Computer Vision and Pattern Recognition · Computer Science 2015-09-25 Spyros Gidaris , Nikos Komodakis

Reflected or scattered light produce artefacts in astronomical observations that can negatively impact the scientific study. Hence, automated detection of these artefacts is highly beneficial, especially with the increasing amounts of data…

Computer Vision and Pattern Recognition · Computer Science 2026-05-07 Julia Dima , Pablo Gómez , Sandor Kruk , Peter Kretschmar , Simon Rosen , Călin-Adrian Popa

In this paper we describe the use of a new artificial neural network, called the difference boosting neural network (DBNN), for automated classification problems in astronomical data analysis. We illustrate the capabilities of the network…

Astrophysics · Physics 2009-11-07 Ninan Sajeeth Philip , Yogesh Wadadekar , Ajit Kembhavi , K. Babu Joseph

State-of-the-art object detection methods applied to satellite and drone imagery largely fail to identify small and dense objects. One reason is the high variability of content in the overhead imagery due to the terrestrial region captured…

Computer Vision and Pattern Recognition · Computer Science 2023-11-01 Debojyoti Biswas , Jelena Tešić

Convolutional neural network (CNN) has led to significant progress in object detection. In order to detect the objects in various sizes, the object detectors often exploit the hierarchy of the multi-scale feature maps called feature…

Computer Vision and Pattern Recognition · Computer Science 2020-01-22 Jin Hyeok Yoo , Dongsuk Kum , Jun Won Choi