Analiza položajne točnosti državnega ortofota glede na časovno obdobje njegove izdelave

diplomska naloga

Niko Fabiani (Author), Mojca Kosmatin Fras (Mentor), Bojan Stopar (Thesis defence commission member), Miran Kuhar (Thesis defence commission member), Mihaela Triglav (Co-mentor)

Abstract

Keywords

geodezija;diplomska naloga;UNI;ortofoto;časovne serije;položajna točnost;analiza;kakovost;terenske meritve;

Data

Language:	Slovenian
Year of publishing:	2014
Source:	Ljubljana
Typology:	2.11 - Undergraduate Thesis
Organization:	UL FGG - Faculty of Civil and Geodetic Engineering
Publisher:	[N. Fabiani]
UDC:	528.5(497.4)(043.2)
COBISS:	6503265
Views:	1738
Downloads:	457
Average score:	0 (0 votes)
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Other data

Secondary language:	English
Secondary title:	Positional precision analysis of the national orthophoto in different periods of its production
Secondary abstract:	This thesis presents the analysis of the positional precision of the national orthophoto in different periods of its production. The goal of the paper is to confirm or deny the hypothesis that the precision of the orthophoto increases with each new generation. The theoretical part of the thesis describes the orthophoto, covers its history and the process of production. In the context of the process of the production, we also describe the use of the digital terrain model and present basic information on the Global Navigation Satellite System. Following that is a description of both Slovene horizontal coordinate systems, the older D48/GK, and the current D96/TM, and their division into sheets on the scale of 1:5000. The next section describes the methodology of the selection and measurements of control points. We then define the method of calculating deviations between coordinates measured in the field and coordinates measured on the orthophoto, add the list of input data and describe the equipement and software used. The practical section of the paper describes the process of the selection of ortophoto sheets, chosen for the control of the hypothesis and the selection of control points on the selected ortophoto sheets. We present the results of the field measurements and control points koordinates. Next, we analyze the aquired results and calculate the average deviation and the root mean square error. The conclusion summarizes our findings, which confirm the hypothesis of this paper.
Secondary keywords:	graduation thesis;geodesy;orthophoto;generations;positional precision;analysis;quality;measurements;
File type:	application/pdf
Type (COBISS):	Undergraduate thesis
Thesis comment:	Univ. v Ljubljani, Fak. za gradbeništvo in geodezijo
Pages:	XIII, 90 str., 2 pril.
Type (ePrints):	thesis
Title (ePrints):	Analiza položajne točnosti državnega ortofota glede na časovno obdobje njegove izdelave
Keywords (ePrints):	Ortofoto;časovne serije;položajna točnost;analiza;kakovost;terenske meritve
Keywords (ePrints, secondary language):	Orthophoto;generations;positional precision;analysis;quality;measurements
Abstract (ePrints):	V diplomski nalogi je predstavljena analiza položajne točnosti državnega ortofota glede na časovno obdobje njegove izdelave. V nalogi smo preverjali hipotezo, da se položajna točnost ortofota skozi njegove posamezne časovne serije izboljšuje. V teoretičnem delu smo opisali kaj ortofoto je, predstavili zgodovino in postopek njegove izdelave. V kontekstu postopka izdelave ortofota smo opisali uporabo digitalnega modela reliefa in osnove globalnih navigacijskih satelitskih sistemov. Prav tako sta opisana oba slovenska horizontalna koordinatna sistema, tako stari D48/GK kot novi D96/TM, ter razdelitev na liste merila 1:5000. Teoretičnemu delu sledi opis metodologije določevanja kontrolnih točk ter meritev le-teh. Definiran je način izračuna odstopanj med terensko izmerjenimi koordinatami in z ortofota izmerjenimi koordinatami, našteti so vhodni podatki in uporabljena strojna ter programska oprema. V praktičnem delu je predstavljen celoten postopek od izbire listov ortofota za kontrolo, izbire točk na izbranih listih, kot tudi terenskih meritev ter meritev koordinat kontrolnih točk na časovnih serijah izbranih listov ortofota. Sledi analiza dobljenih rezultatov ter izračun povprečnih odstopanj ter korena srednje kvadratne napake. V zaključku so strnjene ugotovitve, s katerimi smo potrdili osnovno hipotezo diplomske naloge.
Abstract (ePrints, secondary language):	This thesis presents the analysis of the positional precision of the national orthophoto in different periods of its production. The goal of the paper is to confirm or deny the hypothesis that the precision of the orthophoto increases with each new generation. The theoretical part of the thesis describes the orthophoto, covers its history and the process of production. In the context of the process of the production, we also describe the use of the digital terrain model and present basic information on the Global Navigation Satellite System. Following that is a description of both Slovene horizontal coordinate systems, the older D48/GK, and the current D96/TM, and their division into sheets on the scale of 1:5000. The next section describes the methodology of the selection and measurements of control points. We then define the method of calculating deviations between coordinates measured in the field and coordinates measured on the orthophoto, add the list of input data and describe the equipement and software used. The practical section of the paper describes the process of the selection of ortophoto sheets, chosen for the control of the hypothesis and the selection of control points on the selected ortophoto sheets. We present the results of the field measurements and control points koordinates. Next, we analyze the aquired results and calculate the average deviation and the root mean square error. The conclusion summarizes our findings, which confirm the hypothesis of this paper.
Keywords (ePrints, secondary language):	Orthophoto;generations;positional precision;analysis;quality;measurements
ID:	8327171