Results 31 to 40 of about 1,206 (204)
Centroidal bases in graphs [PDF]
Networks, 2014 We introduce the notion of a centroidal locating set of a graph G, that is, a set L of vertices such that all vertices in G are uniquely determined by their relative distances to the vertices of L. A centroidal locating set of G of minimum size is called a centroidal basis, and its size is the centroidal dimension .
Florent Foucaud +2 more
openaire +4 more sources
Wasit Journal of Engineering Sciences, 2013 This paper presents a subspace method of spot centroiding algorithm for locating the centers of laser spots. It focuses on how to find the position of the activated pixel which is the position of the imaged spot on the detector of the camera using ...
Azad Raheem Kareem
doaj +1 more source
Centroids Beyond Defuzzification
, 2021 In general, expert rules expressed by imprecise (fuzzy) words of natural language like "small" lead to imprecise (fuzzy) control recommendations. If we want to design an automatic controller, we need, based on these fuzzy recommendations, to generate a single control value. A procedure for such generation is known as defuzzification.
Figueroa-Garcia, Juan Carlos +2 more
openaire +2 more sources
An Autonomous Predictive Centroiding Algorithm for Star Sensor
, 2011 Of all current methods for measuring spacecraft attitude, the use of star sensors produces the most accurate measurements. Conventional star sensors repeat these processes with Lost-In-Space case. To advance the methods available to solve these problems,
Jing Li, Bao Hua Li, Xi Jun Chen
core +1 more source
Analysis of centroiding algorithms for non-diffracting structured and hollow structured laser beams
, 2023 This paper explores the potential of optical-based systems, specifically pseudo-non-diffractive beams, as an alternative for alignment. The study focuses on structured laser beams and hollow structured laser beams, which exhibit lower divergence and ...
Gayde, Jean-Christophe +5 more
core +1 more source
Photon Counting Imaging with an Electron-Bombarded Pixel Image Sensor
Sensors, 2016 Electron-bombarded pixel image sensors, where a single photoelectron is accelerated directly into a CCD or CMOS sensor, allow wide-field imaging at extremely low light levels as they are sensitive enough to detect single photons.
Liisa M. Hirvonen, Klaus Suhling
doaj +1 more source
Sensors, 2017 The simultaneous extraction of optical navigation measurements from a target celestial body and star images is essential for autonomous optical navigation.
Hao Wang, Jie Jiang, Guangjun Zhang
doaj +1 more source
<i>LaueMatching</i>: an approach for rapid and robust indexing of Laue diffraction patterns. [PDF]
J Appl CrystallogrThis paper introduces LaueMatching, a rapid and robust algorithm for indexing Laue diffraction patterns using a pre‐computed simulation library. It employs pattern‐correlation matching, overcoming challenges like weak signals, missing peaks and highly distorted peaks from complex microstructures which are often faced by traditional peak‐finding methods.
Sharma H +3 more
europepmc +2 more sources
Interdisciplinary Medicine, EarlyView.Integrated multi‐omics reveals that CD36‐mediated lipid overload in PBMCs drives T cell exhaustion via sub‐lethal ferroptotic stress and AKT suppression. This systemic metabolic signature serves as a robust predictor of immunotherapy response in HCC, suggesting that modulating lipid metabolism can rescue immune fitness.
Ying Zhu +6 more
wiley +1 more source
FPGA implementations of low latency centroiding algorithms for adaptive optics
, 2018 We describe two innovative low latency centroiding algorithms implemented in an FPGA, exploiting the parallel processing features of these devices, and showing low values in latency and real estate, which eases their integration with complete adaptive ...
Polo, MC +6 more
core +1 more source