The main topic of this paper is high-resolution image fusion. The techniques used to merge high spatial resolution panchromatic images with high spectral resolution multispectral images are ...described. The most commonly used image fusion methods that work on the principle of component substitution (intensity-hue-saturation method (This), Brovey transform (BT), and multiplicative method (MULTI)) have been applied to Ikonos, QuickBird, Landsat, and aerial orthophoto images. Visual comparison, histogram analyses, correlation coefficients, and difference images were used in order to analyze the spectral and spatial qualities of the fused images. It was discovered that for preserving spectral characteristics, one needs a high level of similarity between the panchromatic image and the respective multispectral intensity. In order to achieve this; spectral sensitivity of multispectral and panchromatic data was performed, and digital values in individual bands have been modified before fusion. It has also been determined that spatial resolution is best preserved in the event of an unchanged input panchromatic image.
Exact data about the location and area of vacant building land have been a major issue in several Slovene municipalities. This article deals with automatic vacant building land delineation. The ...presented methodology is based on the object-based classification that derives the land cover layer from orthophoto and laser scanning data. With post-processing and data cleaning in GIS, we create the vacant building land layer. The methodology was tested in study areas in the Municipality of Trebnje. The results were compared to the vacant building land layer generated by visual interpretation (manual vectorisation) . We found that the presented methodology of automatic delineation of vacant buildings can speed up the processing and lower the cost of manual vectorisation and, in particular, data updating but we cannot completely replace manual work.
Zaradi iskanja vzrokov za napako so bile vse nadaljnje izstrelitve odložene, in sicer za skoraj pol leta. Ozkokotni instrument ima prostorsko ločljivost 5,0 m v štirih kanalih, ki pokrivajo približno ...isto območje kot vidni in bližnji infrardeči kanali satelitov Landsat in Sentinel-2 (420-520 nm, 535-607 nm, 634-686 nm in 750-960 nm), poleg tega ima pankromatski kanal, s katerim lahko doseže ločljivost 2,5 m. Sirokokotni instrument ima slabšo prostorsko ločljivost, in sicer 40 m. Oba instrumenta lahko snemata tudi video HD z ločljivostjo 1920 x 1080 pikslov, kar je novost na področju opazovanja Zemlje. To potrjujejo prvi posnetki visokoločljive kamere in tudi prvi videoposnetki. bilo izstreljenih več kot 1200 tovrstnih satelitov, najbolj znani med njimi so PlanetScope podjetja Planet, ki s 150 sateliti dnevno posname celotno Zemljo z ločljivostjo približno 4 m. Satelit Trisat sta razvili Univerza v Mariboru in podjetje SkyLabs.
The first countrywide register of illegal dump sites in Slovenia was created in 2010 and 2011. Due to its extensiveness it allows in-depth analyses of factors that affect illegal waste disposal. ...Prior research has already proven the impact of roads on the incidence of illegal dumps, but in this paper we investigate if regional differences significantly influence its expression. We consider the existing landscape typing, which divides Slovenia into 14 landscape-ecological types. We find significant differences between landscape types in the attractiveness of roads for disposal. They are especially pronounced when comparing the attractiveness of individual road categories.
Land use and its changes in Slovenia compared to the European countries) Mentor: prof. dr. Andrej Pogačnik Somentor: izr. prof. dr. Marjan Ravbar URL: ...https://repozitorij.uni-lj.si/IzpisGradiva.php?id=113057 V doktorski nalogi kandidat obravnava stanje in težnje rabe prostora. Čeprav model raziskovanja razvoja rabe prostora izkazuje tudi omejitve zaradi omejene razpoložljivosti, dostopnosti in kakovosti primernih prostorskih podatkov, ki bi zagotavljali primerljivost med opazovanimi obdobji kot tudi opazovanje rabe ali pokrovnosti prostora v daljšem časovnem obdobju, so rezultati pokazali, da je model uporaben za stalno spremljanje stanja in razvoja v prostoru. Pomemben prispevek doktorske disertacije pa je tudi v izvedenih analizah in dobljenih rezultatih, ki po kar nekajletnem premoru spremljanja rabe prostora zapolnjujejo vrzel v podrobnem poznavanju razvoja rabe prostora v Sloveniji. prof. dr. Krištof Oštir, predstojnik doktorskega študija grajeno okolje Univerza v Ljubljani, Fakulteta za gradbeništvo in geodezijo Jamova cesta 2, SI-1000 Ljubljana e-naslov: kristof.ostir@fgg.uni-lj.si
Optimal adjustment models of Scintrex CG-3M gravimeter measurements with respect to the most significant instrumental influences) Mentor: doc. dr. Miran Kuhar Somentorica: doc. dr. Polona Pavlovčič ...Prešeren URL: https://repozitorij.uni-lj.si/IzpisGradiva.php?id=109573&lang=slv V doktorski nalogi kandidatka obravnava določitev optimalnega modela izravnave gravimetričnih meritev z instrumenti Scintrex CG-3M ob upoštevanju najpomembnejših instrumentalnih vplivov. 2019 MAGISTRSKI ŠTUDIJSKI PROGRAM DRUGE STOPNJE GEODEZIJA IN GEOINFORMATIKA David Bišić Izmera trase kolesarske steze na otoku Rabu in njen prikaz na turistični karti Mentor: doc. dr. Miran Kuhar Somentor: asist. dr. Klemen Kozmus Trajkovski URL: https://repozitorij.uni-lj.si/IzpisGradiva.php?id=108479 Jan Kokalj Vzpostavitev geodetske mreže in izmera višine slapa Peričnik Mentor: izr. prof. dr. Tomaž Ambrožič Somentorica: doc. dr. Polona Pavlovčič Prešeren URL: https://repozitorij.uni-lj.si/IzpisGradiva.php?id=108237 Metka Mesojedec Ocena upadanja delovne mobilnosti z razdaljo na ravni občin in statističnih regij po Newton-Raphsonovi metodi Mentor: doc. dr. Samo Drobne URL: https://repozitorij.uni-lj.si/IzpisGradiva.php?id=108233 Gorazd Prašnikar Geodetski monitoring cerkve svetega Benedikta v Kančevcih Mentor: doc. dr. Božo Koler Somentor: asist. dr. Tilen Urbančič URL: https://repozitorij.uni-lj.si/IzpisGradiva.php?id=108744 Uroš Sojer Določitev spremembe geometrije deformabilne cevi iz oblaka točk terestričnega laserskega skeniranja Mentor: doc. dr. Božo Koler Somentor: asist. dr. Tilen Urbančič URL: https://repozitorij.uni-lj.si/IzpisGradiva.php?id=108745 Viktorija Stojcheska Določanje višine oblakov iz enega satelitskega posnetka Mentor: prof. dr. Krištof Oštir Somentorja: doc. dr. Dejan Grigillo, dr. Klemen Zakšek URL: https://repozitorij.uni-lj.si/IzpisGradiva.php?id=107881 Uroš Šeme Določitev položajev cerkvenih zvonikov v D96/TM na območju JZ dela Ljubljane Mentor: doc. dr. Aleš Marjetič Somentorica: doc. dr. Polona Pavlovčič Prešeren URL: https://repozitorij.uni-lj.si/IzpisGradiva.php?id=107879 Tamara Žnidaršič Določanje meje zaznavanja sprememb parametrov ravnine pri skeniranju s TLS Mentorica: doc. dr. Simona Savšek Somentor: asist. dr. Klemen Kregar URL: https://repozitorij.uni-lj.si/IzpisGradiva.php?id=107903 VISOKOŠOLSKI STROKOVNI STUDIJSKI PROGRAM PRVE STOPNJE TEHNIČNO UPRAVLJANJE NEPREMIČNIN Klemen Kastelic Izmera mestne nivelmanske mreže Piran Mentor: doc. dr. Božo Koler Somentor: asist. dr. Tilen Urbančič URL: https://repozitorij.uni-lj.si/IzpisGradiva.php?id=108193 Samo Peterka Avtomatizacija izrisa prostorskih interakcij v ArcGIS Mentor: doc. dr. Samo Drobne Somentor: izr. prof. dr. Mitja Lakner URL: https://repozitorij.uni-lj.si/IzpisGradiva.php?id=107869 Tomislav Trepal Izmera položajne in višinske mreže pri Osnovni šoli Polhov Gradec Mentor: izr. prof. dr. Tomaž Ambrožič Somentor: asist. Gašper Štebe URL: https://repozitorij.uni-lj.si/IzpisGradiva.php?id=108769 Vir: Univerza v Ljubljani, Fakulteta za gradbeništvo in geodezijo UL FGG Za študijski referat:
System for mapping of water bodies in Slovenia and its immediate neighbourhood with Sentinel-1 radar satellites have implemented. Algorithms automatically detect presence of new data in the archive, ...download the data, analyse it, write the results, and upload them to a web portal. New acquisitions are currently available every six days, but this time will be halved when the second Sentinel-1 starts delivering the data.
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