Results 21 to 30 of about 60,336 (244)

Klasifikasi Belimbing Menggunakan Naïve Bayes Berdasarkan Fitur Warna RGB

open access: yesIJCCS (Indonesian Journal of Computing and Cybernetics Systems), 2017
Post harvest issues on star fruit are produced on a large scale or industry is sorting. Currently, star fruit classified by rind color analysis visually human eye. This method does not effective and inefficient.
Fuzy Yustika Manik, Kana Saputra Saragih
doaj   +1 more source

RESEARCH ON MULTI-SOURCE SATELLITE IMAGE DATABASE MANAGEMENT SYSTEM [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
For the exploration and analysis of electricity, it is necessary to continuously acquire multi-star source, multi-temporal, multi-level remote sensing images for analysis and interpretation.
N. Fu   +4 more
doaj   +1 more source

A Factor Graph Approach for Attitude Estimation of Spacecraft Using a Stellar Gyroscope

open access: yesIEEE Access, 2019
A stellar gyroscope is an attitude sensor that is composed of a micro star sensor and a micro-electro-mechanical system gyroscope. The attitude is the output by fusing the information of the two sensors.
Shiqiang Wang   +3 more
doaj   +1 more source

Star-Identification System Based on Polygon Recognition

open access: yesAerospace, 2023
Accurate attitude determination is crucial for satellites and spacecraft. Among attitude determination devices, star sensors are the most accurate. Solving the lost-in-space problem is the most critical function of the star sensor.
Gustavo E. Ramos-Alcaraz   +2 more
doaj   +1 more source

Optical system design of star sensor and stray light analysis

open access: yesJournal of the European Optical Society-Rapid Publications, 2018
Background Star sensor is one of the precise attitude determination sensors. It is an electro-optical system that takes an image from a set of stars and by comparing it with the star catalogue determines angle deviation of the satellite and modifies its ...
Mohammad Asadnezhad   +2 more
doaj   +1 more source

A methodological exploration to study 2D arm kinematics in Ophiuroidea (Echinodermata)

open access: yesFrontiers in Zoology, 2023
Brittle stars, unlike most other echinoderms, do not use their small tube feet for locomotion but instead use their flexible arms to produce a rowing or reverse rowing movement.
Mona Goharimanesh   +4 more
doaj   +1 more source

Sieve Search Centroiding Algorithm for Star Sensors

open access: yesSensors, 2023
The localization of the center of the star image formed on a sensor array directly affects attitude estimation accuracy. This paper proposes an intuitive self-evolving centroiding algorithm, termed the sieve search algorithm (SSA), which employs the ...
Vivek Chandran Karaparambil   +2 more
doaj   +1 more source

Divisible load scheduling of image processing applications on the heterogeneous star and tree networks using a new genetic algorithm [PDF]

open access: yesConcurrency and Computation: Practice and Experience, 2019
SummaryThe divisible load scheduling of image processing applications on the heterogeneous star and multi‐level tree networks is addressed in this paper. In our platforms, processors and network links have different speeds. In addition, computation and communication overheads are considered. A new genetic algorithm for minimizing the processing time of
Sahar Nikbakht Aali, Nader Bagherzadeh
openaire   +3 more sources

LOW FREQUENCY ERROR ANALYSIS AND CALIBRATION FOR HIGH-RESOLUTION OPTICAL SATELLITE’S UNCONTROLLED GEOMETRIC POSITIONING [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
The low frequency error is a key factor which has affected uncontrolled geometry processing accuracy of the high-resolution optical image. To guarantee the geometric quality of imagery, this paper presents an on-orbit calibration method for the low ...
M. Wang, C. Fang, B. Yang, Y. Cheng
doaj   +1 more source

Research on image reinforcement method for star sensor based on high-level synthesis constraints

open access: yesDianzi Jishu Yingyong
Spacecraft star sensor image processing is a crucial component of Field Programmable Gate Array(FPGA) payload missions. This functionality significantly reduces the data transmission requirements of the payload, accelerates decision-making speed, and ...
Wang Xian, Lu Yao, Gao Jiaxuan
doaj   +1 more source

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