Results 91 to 100 of about 7,930 (201)

Pattern recognition for Space Applications Center director's discretionary fund [PDF]

open access: yes
Results and conclusions are presented on the application of recent developments in pattern recognition to spacecraft star mapping systems. Sensor data for two representative starfields are processed by an adaptive shape-seeking version of the Fc-V ...
Singley, M. E.
core   +1 more source

Classificação multi-temporal de imagens orbitais de média resolução espacial para o município de Simão Dias (SE). [PDF]

open access: yes, 2016
O objetivo do presente trabalho foi a elaboração de uma análise exploratória de dados espectrais e tabulares, a partir da classificação supervisionada e não-supervisionada de imagens orbitais advindas do Programa Landsat (L5, L7 e L8), da USGS, e de ...
CARVALHO, S. S.   +3 more
core  

Application of an improved ISODATA method to pipeline leak detection

open access: yesPetroleum Science, 2007
Increasingly serious leak problem in pipeline transportation has not only affected the operation of pipelines but also caused loss of precious resource and environmental damage. Based on the analysis of the occurrence of negative pressure waves and the unsupervised learning of pattern recognition, the Interactive Self-organizing Data Analysis Technique
Hu Jinquiu   +3 more
openaire   +1 more source

The applicability and effectiveness of cluster analysis [PDF]

open access: yes
An insight into the characteristics which determine the performance of a clustering algorithm is presented. In order for the techniques which are examined to accurately cluster data, two conditions must be simultaneously satisfied.
Actkinson, A. L., Ingram, D. S.
core   +1 more source

Water Object Detection in Image [PDF]

open access: yes, 2008
Bakalářská práce popisuje historii remote sensing, strukturu satelitních snímků, jejich zpracování a analýzu. Definuje multispektrální prostor a vysvětluje základy kvantitativní analýzy a rozdíly mezi supervised a unsupevised klasifikací.
Čeloud, David
core  

A New GIS-Based Framework to Detect Urban Heat Islands and Its Application on the City of Naples (Italy)

open access: yesLand
This research presents a GIS-based framework used to detect urban heat islands and determine which urban settlement elements are most critical when heatwave risks exist.
Rosa Cafaro   +4 more
doaj   +1 more source

Accident black spot clustering oriented maritime search and rescue resource allocation and optimization

open access: yesFrontiers in Marine Science
Efficient and rapid deployment of maritime search and rescue(MSAR) resources is a prerequisite for maritime emergency search and rescue, in order to improve the efficiency and accuracy of MSAR.
Yang Sun   +5 more
doaj   +1 more source

Improving Classification of Remotely Sensed Data Using Best Band Selection Index and Cluster Labelling Algorithms [PDF]

open access: yes, 2005
Methods for improving supervised and unsupervised classification of remotely sensed data were developed in this study. Supervised classification of remotely sensed data requires systematic collection of training samples for classes of interest.
Teoh, Chin Chuang
core  

Adaptive Subarray Partitioning for Large-Scale Phased Arrays Using ISODATA

open access: yesElectronics Letters
ABSTRACT Phased array antennas, known for their high directivity and low sidelobe levels, are widely used in radar and communication systems. As the array size increases, controlling each element individually becomes increasingly complex and costly. To address this challenge, subarray partitioning is an effective solution. Traditional
Zihong Wu   +3 more
openaire   +1 more source

Remote Sensing of Giant Reed with QuickBird Satellite Imagery [PDF]

open access: yes, 2005
QuickBird high resolution (2.8 m) satellite imagery was evaluated for distinguishing giant reed ( Arundo donax L.) infestations along the Rio Grande in southwest Texas. (PDF has 5 pages.
Deloach, C. J.   +2 more
core  

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