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We present the \textit{hierarchical Dirichlet scaling process} (HDSP), a Bayesian nonparametric mixed membership model. The HDSP generalizes the hierarchical Dirichlet process (HDP) to model the correlation structure between metadata in the…

Machine Learning · Computer Science 2017-07-10 Dongwoo Kim , Alice Oh

Selected results obtained in major observational sky surveys (DSS, 2MASS, 2dF, SDSS) and deep field observations (HDF, GOODS, HUDF, etc.) are reviewed. Modern surveys provide information on the characteristics and space distribution of…

Astrophysics · Physics 2009-11-11 V. P. Reshetnikov

This work explores the use of big data technologies deployed in the cloud for processing of astronomical data. We have applied Hadoop and Spark to the task of co-adding astronomical images. We compared the overhead and execution time of…

Instrumentation and Methods for Astrophysics · Physics 2017-04-03 Ivan Kolosov , Sergey Gerasimov , Alexander Meshcheryakov

Siril is a powerful open-source software package designed for the preprocessing and post-processing of astronomical images. It is particularly well-suited for astrophotography enthusiasts and professional astronomers alike. Siril provides…

Instrumentation and Methods for Astrophysics · Physics 2024-10-17 Cyril Richard , Vincent Hourdin , Cécile Melis , Adrian Knagg-Baugh

To enhance localization accuracy in urban environments, an innovative LiDAR-Visual-Inertial odometry, named HDA-LVIO, is proposed by employing hybrid data association. The proposed HDA_LVIO system can be divided into two subsystems: the…

Robotics · Computer Science 2024-03-12 Jian Shi , Wei Wang , Mingyang Qi , Xin Li , Ye Yan

The Smithsonian Hectospec Lensing Survey (SHELS) combines a large deep complete redshift survey with a weak lensing map from the Deep Lens Survey (Wittman et al. 2002; 2005). We use maps of the velocity dispersion based on systems…

The importance of hierarchical image organization has been witnessed by a wide spectrum of applications in computer vision and graphics. Different from image segmentation with the spatial whole-part consideration, this work designs a modern…

Computer Vision and Pattern Recognition · Computer Science 2021-04-06 Fu Yuanbin , Guoxiaojie , Hu Qiming , Lin Di , Ma Jiayi , Ling Haibin

We describe a system that builds a high dynamic-range and wide-angle image of the night sky by combining a large set of input images. The method makes use of pixel-rank information in the individual input images to improve a "consensus"…

Computer Vision and Pattern Recognition · Computer Science 2014-06-09 Dustin Lang , David W. Hogg , Bernhard Scholkopf

This paper introduces SHIELD, a Spherical-Projection Hybrid-Frontier Integration for Efficient LiDAR-based Drone exploration method. Although laser LiDAR offers the advantage of a wide field of view, its application in UAV exploration still…

Robotics · Computer Science 2026-01-01 Liangtao Feng , Zhenchang Liu , Feng Zhang , Xuefeng Ren

The Bluebild algorithm is a new technique for image synthesis in radio astronomy which decomposes the sky into distinct energy levels using functional principal component analysis. These levels can be linearly combined to construct a…

Instrumentation and Methods for Astrophysics · Physics 2025-01-30 Emma Tolley , Simon Frasch , Etienne Orliac , Shreyam Krishna , Michele Bianco , Sepand Kashani , Paul Hurley , Matthieu Simeoni , Jean-Paul Kneib

Cyber-Physical Systems (CPSs) employed for Industrial Automation often require the adoption of a hybrid data processing approach mediating between cloud, edge, and fog computing paradigms. Nowadays, it is possible to shift data…

Image fusion combines images from multiple domains into one image, containing complementary information from source domains. Existing methods take pixel intensity, texture and high-level vision task information as the standards to determine…

Computer Vision and Pattern Recognition · Computer Science 2024-09-17 Guang Yang , Jie Li , Xin Liu , Zhusi Zhong , Xinbo Gao

LiDAR place recognition is a crucial module in localization that matches the current location with previously observed environments. Most existing approaches in LiDAR place recognition dominantly focus on the spinning type LiDAR to exploit…

Robotics · Computer Science 2025-02-10 Minwoo Jung , Sangwoo Jung , Hyeonjae Gil , Ayoung Kim

Inpainting is the technique of reconstructing unknown or damaged portions of an image in a visually plausible way. Inpainting algorithm automatically fills the damaged region in an image using the information available in undamaged region.…

Computer Vision and Pattern Recognition · Computer Science 2012-09-14 S. Padmavathi , B. Priyalakshmi. Dr. K. P. Soman

Today the global averaged civilian positioning accuracy is still at meter level for all existing Global Navigation Satellite Systems (GNSSs), and the civilian positioning performance is even worse in regions such as the Arctic region and…

Signal Processing · Electrical Eng. & Systems 2023-01-03 Hongzhao Zheng , Mohamed Atia , Halim Yanikomeroglu

The horizontal-to-vertical spectral ratio (HVSR) technique is widely used to determine site fundamental periods from ambient noise recordings, but relating the observed peak to a specific impedance contrast within layered soils remains…

Geophysics · Physics 2025-09-30 Mersad Fathizadeh , Clinton M. Wood , Hosna Kianfar

Software engineers are faced with the challenge of creating control algorithms for increasingly complex dynamic systems, such as the management of communication network topologies. To support rapid prototyping for these increasingly complex…

Software Engineering · Computer Science 2025-03-27 Maximilian Kratz , Sebastian Ehmes , Philipp Maximilian Menzel , Andy Schürr

Aerial scene classification, which aims to automatically label an aerial image with a specific semantic category, is a fundamental problem for understanding high-resolution remote sensing imagery. In recent years, it has become an active…

Computer Vision and Pattern Recognition · Computer Science 2017-07-18 Gui-Song Xia , Jingwen Hu , Fan Hu , Baoguang Shi , Xiang Bai , Yanfei Zhong , Liangpei Zhang

As modern complex neural networks keep breaking records and solving harder problems, their predictions also become less and less intelligible. The current lack of interpretability often undermines the deployment of accurate machine learning…

Computer Vision and Pattern Recognition · Computer Science 2022-07-15 Jacopo Teneggi , Alexandre Luster , Jeremias Sulam

Hyperloop system design is a uniquely coupled problem because it involves the simultaneous design of a complex, high-performance vehicle and its accompanying infrastructure. In the clean-sheet design of this new mode of high-speed mass…

Computational Engineering, Finance, and Science · Computer Science 2021-04-23 Philippe Kirschen , Edward Burnell