Geometrični popravki optičnih satelitskih posnetkov

The monograph presents a fully automated procedure for geometric correction of optical satellite images, without any manual intervention during the processing. The resulting orthorectified image is in the national coordinate system and constitutes a suitable source for spatial analyses. In the monog...

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Superior document:Prostor, kraj, čas 15
:
Year of Publication:2018
Language:Slovenian
Series:Prostor, kraj, čas 15
Physical Description:1 electronic resource (146 p.)
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spelling Kosmatin Fras, Mojca auth
Geometrični popravki optičnih satelitskih posnetkov
Ljubljana ZRC SAZU, Založba ZRC 2018
1 electronic resource (146 p.)
text txt rdacontent
computer c rdamedia
online resource cr rdacarrier
Prostor, kraj, čas 15
The monograph presents a fully automated procedure for geometric correction of optical satellite images, without any manual intervention during the processing. The resulting orthorectified image is in the national coordinate system and constitutes a suitable source for spatial analyses. In the monograph the original procedure connects several different methods into a single, robust system for automatic generation of orthoimages is documented in detail. The work describes the whole automatic orthorectification process, which comprises four basic modules: a module for extracting and preparing the metadata, a module for automatic extraction of ground control points, a module for calculation of parameters of the geometric model, and a module for orthorectification. The experiments and results with RapidEye and WorldView-2 images are also presented. The experiments evaluate the procedure for automatic extraction of points, the geometric model, the elimination of gross errors, and the positional accuracy of the orthoimages. The analisys of the results indicate that the automated procedure produces orthoimages with a positional accuracy of about two pixels or better, even if several gross errors are present among the automatically extracted ground control points.
V knjigi je opisan popolnoma samodejen postopek geometričnih popravkov optičnih satelitskih posnetkov, ki deluje brez posredovanja operaterja med obdelavo. Dobljeni ortorektificiran posnetek je v državnem koordinatnem sistemu in predstavlja primerno podlago za prostorske analize. V knjigi je detajlno dokumentiran izviren postopek, ki povezuje več različnih metod v enoten in robusten sistem za samodejno izdelavo satelitskega ortofota. Opisan je celoten postopek samodejne ortorektifikacije, ki ga sestavljajo štirje osnovni moduli: modul za branje in pripravo metapodatkov, modul za samodejno določanje oslonilnih točk, modul za izračun parametrov geometričnega modela in modul za izvedbo ortorektifikacije. Poleg modulov so predstavljeni tudi poskusi s posnetki RapidEye in WorldView-2. Opravljeni poskusi so omogočili ovrednotenje delovanja samodejnega postopka določanja točk, geometričnega modela, izločanja grobih napak in oceno položajne točnosti ortoposnetkov. Analiza rezultatov testov kaže, da lahko samodejni postopek izdela ortoposnetke s položajno točnostjo okrog dveh pikslov ali manj, tudi če je med samodejno določenimi oslonilnimi točkami prisotnih več grobih napak.
Slovenian
Geographical information systems (GIS) & remote sensing bicssc
automatic ortorectification
geometric models
optical satellite imagery
ortorectification
RANSAC
raw evaluation
geometrični modeli
optični satelitski posnetki
ortorektifikacija
robustna ocena
samodejna ortorektifikacija
961-05-0039-0
Marsetič, Aleš auth
Oštir, Krištof auth
language Slovenian
format eBook
author Kosmatin Fras, Mojca
spellingShingle Kosmatin Fras, Mojca
Geometrični popravki optičnih satelitskih posnetkov
Prostor, kraj, čas
author_facet Kosmatin Fras, Mojca
Marsetič, Aleš
Oštir, Krištof
author_variant f m k fm fmk
author2 Marsetič, Aleš
Oštir, Krištof
author2_variant a m am
k o ko
author_sort Kosmatin Fras, Mojca
title Geometrični popravki optičnih satelitskih posnetkov
title_full Geometrični popravki optičnih satelitskih posnetkov
title_fullStr Geometrični popravki optičnih satelitskih posnetkov
title_full_unstemmed Geometrični popravki optičnih satelitskih posnetkov
title_auth Geometrični popravki optičnih satelitskih posnetkov
title_new Geometrični popravki optičnih satelitskih posnetkov
title_sort geometrični popravki optičnih satelitskih posnetkov
series Prostor, kraj, čas
series2 Prostor, kraj, čas
publisher ZRC SAZU, Založba ZRC
publishDate 2018
physical 1 electronic resource (146 p.)
isbn 961-05-0039-0
illustrated Not Illustrated
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is_hierarchy_title Geometrični popravki optičnih satelitskih posnetkov
container_title Prostor, kraj, čas 15
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