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This chapter describes the history, principles, and recent developments of large field of view X-ray optics based on lobster eye designs. Most of grazing incidence (reflective) X-ray imaging systems used in astronomy and other applications,…

天体物理仪器与方法 · 物理学 2023-04-05 Rene Hudec , Charly Feldman

Live fish recognition is one of the most crucial elements of fisheries survey applications where vast amount of data are rapidly acquired. Different from general scenarios, challenges to underwater image recognition are posted by poor image…

计算机视觉与模式识别 · 计算机科学 2016-03-08 Meng-Che Chuang , Jenq-Neng Hwang , Kresimir Williams

Accurate identification of unobservable regions in nighttime is essential for autonomous scheduling and data quality control in observations.Traditional methods-such as infrared sensing or photometric extinction-provide only…

天体物理仪器与方法 · 物理学 2025-10-23 Jian Cui , Guo-Wang Du , Xin-Zhong Er , Chu-Xiang Li , Jun-Fan Hou , Yu-Xin Xin , Xiang-kun Liu , Xiao-Wei Liu

Obstacle Detection is a central problem for any robotic system, and critical for autonomous systems that travel at high speeds in unpredictable environment. This is often achieved through scene depth estimation, by various means. When fast…

机器人学 · 计算机科学 2016-07-22 Michele Mancini , Gabriele Costante , Paolo Valigi , Thomas A. Ciarfuglia

Rare extragalactic objects can carry substantial information about the past, present, and future universe. Given the size of astronomical databases in the information era it can be assumed that very many outlier galaxies are included in…

星系天体物理 · 物理学 2021-01-13 Lior Shamir

This research project addresses the challenge of accurately tracking eye movements during specific events by leveraging previous research. Given the rapid movements of human eyes, which can reach speeds of 300{\deg}/s, precise eye tracking…

计算机视觉与模式识别 · 计算机科学 2025-08-08 Chirag Seth , Divya Naiken , Keyan Lin

Large sky surveys are increasingly relying on image subtraction pipelines for real-time (and archival) transient detection. In this process one has to contend with varying PSF, small brightness variations in many sources, as well as…

天体物理仪器与方法 · 物理学 2018-04-25 Nima Sedaghat , Ashish Mahabal

In this paper, we propose a novel object detection algorithm named "Deep Regionlets" by integrating deep neural networks and a conventional detection schema for accurate generic object detection. Motivated by the effectiveness of regionlets…

计算机视觉与模式识别 · 计算机科学 2019-12-04 Hongyu Xu , Xutao Lv , Xiaoyu Wang , Zhou Ren , Navaneeth Bodla , Rama Chellappa

Quantifying image distortions caused by strong gravitational lensing and estimating the corresponding matter distribution in lensing galaxies has been primarily performed by maximum likelihood modeling of observations. This is typically a…

天体物理仪器与方法 · 物理学 2017-09-20 Yashar D. Hezaveh , Laurence Perreault Levasseur , Philip J. Marshall

We consider a machine learning algorithm to detect and identify strong gravitational lenses on sky images. First, we simulate different artificial but very close to reality images of galaxies, stars and strong lenses, using six different…

天体物理仪器与方法 · 物理学 2021-04-06 H. G. Khachatryan

Machine learning, and eventually true artificial intelligence techniques, are extremely important advancements in astrophysics and astronomy. We explore the application of deep learning using neural networks in order to automate the…

天体物理仪器与方法 · 物理学 2020-12-29 James Bird , Kellan Colburn , Linda Petzold , Philip Lubin

In many areas of decision-making, forecasting is an essential pillar. Consequently, many different forecasting methods have been proposed. From our experience, recently presented forecasting methods are computationally intensive, poorly…

机器学习 · 计算机科学 2023-09-29 André Bauer , Mark Leznik , Michael Stenger , Robert Leppich , Nikolas Herbst , Samuel Kounev , Ian Foster

Tracking the abundance of underwater species is crucial for understanding the effects of climate change on marine ecosystems. Biologists typically monitor underwater sites with echosounders and visualize data as 2D images (echograms); they…

Efficient identification and follow-up of astronomical transients is hindered by the need for humans to manually select promising candidates from data streams that contain many false positives. These artefacts arise in the difference images…

Retinal image-based eye tracking is widely used in ophthalmic imaging and vision science, and is a promising path to deliver higher gaze accuracy than the pupil- and cornea-based approaches commonly used in modern AR/VR devices.…

Current synoptic sky surveys monitor large areas of the sky to find variable and transient astronomical sources. As the number of detections per night at a single telescope easily exceeds several thousand, current detection pipelines make…

This paper focuses on improving object detection performance by addressing the issue of image distortions, commonly encountered in uncontrolled acquisition environments. High-level computer vision tasks such as object detection,…

计算机视觉与模式识别 · 计算机科学 2024-04-15 Vamshi Krishna Kancharla , Neelam sinha

We develop a new statistical ideal observer model that performs holistic visual search (or gist) processing in part by placing thresholds on minimum extractable image features. In this model, the ideal observer reduces the number of free…

计算机视觉与模式识别 · 计算机科学 2026-01-14 Howard C. Gifford

Drones, or general UAVs, equipped with a single camera have been widely deployed to a broad range of applications, such as aerial photography, fast goods delivery and most importantly, surveillance. Despite the great progress achieved in…

计算机视觉与模式识别 · 计算机科学 2019-10-21 Haotian Zhang , Gaoang Wang , Zhichao Lei , Jenq-Neng Hwang

Wide field small aperture telescopes are working horses for fast sky surveying. Transient discovery is one of their main tasks. Classification of candidate transient images between real sources and artifacts with high accuracy is an…

天体物理仪器与方法 · 物理学 2019-07-17 Peng Jia , Yifei Zhao , Gang Xue , Dongmei Cai