Results 71 to 80 of about 717,206 (143)
The Astronomical JournalJoint analysis of position measurements and radial velocities of six triple stellar systems is conducted to determine their inner and/or outer orbits. Accumulation of such data is needed to study the architecture of stellar hierarchies and its relation ...
Andrei Tokovinin
doaj +1 more source
Cas A and the Crab Were Not Stellar Binaries At Death [PDF]
, 2017 The majority of massive stars are in binaries, which implies that many core collapse supernovae (ccSNe) should be binaries at the time of the explosion. Here we show that the three most recent, local (visual) SNe (the Crab, CasA and SN1987A) were not binaries, with limits on the initial mass ratios of q=M2/M1<0.1. No quantitative limits have previously
arxiv +1 more source
BinVPR: Binary Neural Networks towards Real-Valued for Visual Place Recognition
SensorsVisual Place Recognition (VPR) aims to determine whether a robot or visual navigation system locates in a previously visited place using visual information. It is an essential technology and challenging problem in computer vision and robotic communities.
Junshuai Wang +3 more
doaj +1 more source
Decoding visual information from high-density diffuse optical tomography neuroimaging data
NeuroImage, 2021 Background: Neural decoding could be useful in many ways, from serving as a neuroscience research tool to providing a means of augmented communication for patients with neurological conditions.
Kalyan Tripathy +10 more
doaj
Cellular-local Algorithm for Localizing and Estimating Changes in Binary Images
Моделирование и анализ информационных систем, 2014 In this paper we consider the problem of detection of changes and estimation of the degree of these changes in a dynamically changing binary image. The authors introduce the numerical characteristic degree of change areas in dynamically changing binary ...
A. A. Korotkin, A. A. Maksimov
doaj +1 more source
Statistical properties of visual binaries as tracers of the formation of young stellar clusters [PDF]
arXiv, 2000 In this review, we summarize the observed statistical properties of visual binaries in various young stellar clusters. The binary frequency, orbital period distribution and mass ratio distribution are considered for populations of both low-mass and high-mass stars.
arxiv
Local Similarity Number and its Application to Object Tracking
International Journal of Advanced Robotic Systems, 2013 In this paper, we present a tracking technique utilizing a simple saliency visual descriptor. Initially, we define a visual descriptor named local similarity pattern that mimics the famous texture operator local binary patterns.
Hamed Rezazadegan Tavakoli +2 more
doaj +1 more source
GAIA and Population II Visual Binaries [PDF]
arXiv, 2002 The results of a kinematical population classification of 497 Hipparcos orbital binaries are discussed. Less than 10% of the stars from the sample belong to the thick disk. Only seven stars have halo kinematics. There are no direct dynamical mass determinations for extreme halo stars. Some suggestions, concerning Population II visual binaries for which
arxiv
Identification of Possible Stellar Companions via Speckle Interferometry in a Sample of Be Stars II
The Astronomical JournalThis study investigates the identification of possible stellar companions in a sample of Be stars using speckle interferometry. Be stars, which are rapidly rotating B-type stars exhibiting emission lines due to the presence of circumstellar disks, have ...
C. A. Guerrero +3 more
doaj +1 more source
Visual Localization across Seasons Using Sequence Matching Based on Multi-Feature Combination
Sensors, 2017 Visual localization is widely used in autonomous navigation system and Advanced Driver Assistance Systems (ADAS). However, visual-based localization in seasonal changing situations is one of the most challenging topics in computer vision and the ...
Yongliang Qiao +2 more
doaj +1 more source