Analysis of airborne laser scanning data and products in the Neusiedler See Project

The paper is a condensed presentation of the experimental part of my graduation project (Bitenc, 2006), which I carried out at the Institute for Photogrammetry and Remote sensing (I.P.F.) at the Vienna University of Technology during my Erasmus exchange program. The main topic is attractive, useful and advanced technology - airborne laser scanning, which was used in the Neusiedler See project in order to enable hydrological analyses. The aim of this project, which was part of the international SISTEMaPARC project in the framework of the transnational European project INTERREG IIIB CADSES, was refilling drained natural basins with water, so centimeter accuracy of digital terrain model (DTM) was required. Its high relative and absolute accuracy was obtained by using an appropriate post-processing method. The paper presents analysis of the DTM quality, which was accessed with local quality parameters. According to the results, the DTM of the Neusiedler See National Park reaches 4 cm accuracy in height. The second analysis, described in this paper, aims to investigate intensity values measured with laser scanner. Intensity is a side product of ALS, but could be very useful for recognizing the scanned objects, while it gives some semantic information directly to the 3D data. The possibility to use it for land cover identification and classification was investigated. Some land cover is separable with intensity data, but it was discovered that ALS data are not sufficient

Recent charm mixing results from BABAR, Belle, and CDF

A summary of the results of several recent studies of charm mixing is presented. A number of different methods were used, including the measurement of lifetime ratios for final states of different CP, time dependence of wrong-sign hadronic decays, fits to time-dependent Dalitz plots, and searches for wrong-sign semi-leptonic decays. Taken together, they suggest mixing is of order 1%. The status of searches for indirect CP violation is also reported.Comment: 7 pages, 2 figures, proceedings from PHIPSI0

Patient with the foreign body and distal ileum perforation denying surgical treatment

80 years old patient from Zagreb was seeking help in the Emergency due to abdominal pain. MSCT showed thickened wall of ileum with a sharp foreign object inside and some free fluid in the right lower quadrant. He had clinical picture of acute abdomen and was suggested to go for surgery, which he refused. He was admitted and treated medically for tree days. He felt better afte

Analysis of Airborne Laser Scanning data and products in the project Neusiedler See

The main topic of my diploma thesis is attractive, useful and advanced technology of remote sensing, called airborne laser scanning. I have learned about the system and his state-of-the- art research at the I.P.F. TU Vienna, while studying there in Erasmus program. In the first, theoretical part, I explain the principle of different ALS measurements. The laser scanner measures a bundle of 3D-vectors (polar coordinates), which are positioned by DGPS and oriented by IMU. In post-flight processing, the laser range, scan angle, kinematic DGPS data and INS data are combined to accurately determine the position of a point on the Earth's surface. In order to enhance the relative and absolute accuracy, quality check and fine georeferencing of ALS strips have to be done. The next step is filtering the ALS data and interpolating the digital model. The main model is DTM, which was in the case of the project Neusiedler See, calculated with robust linear prediction in a hierarchical approach. It provides accurate model needed for hydrological analyses. I used the data of the mentioned project for two separated analyses. First, I check the quality of the DTM using the I.P.F. program sigmaDTM.exe. Results (local quality parameters) are easily computed and present detailed quality information. The second analysis aims to investigate intensity (measured with LS) for the purpose of the land cover identification and classification. Some land cover is separable with intensity data, but it was found out, that just ALS data is not sufficient

Prazgodovinsko grobišče na Pristavi na Bledu. Raziskave v letih 1975–1978

The excavations conducted in 1975–1978 at Pristava in Bled explored the northern part of the cemetery that had already been excavated in 1948–1951. The northern part yielded 33 Iron Age burials, of which 32 were cremations and one an inhumation, as well as a pyre site. The burial rite, grave goods and stray finds shed further light on the cemetery and show that it was in use for approximately two centuries in the initial part of the Early Iron Age. The pottery and the metal finds also reveal contacts that the inhabitants of the Bled area had with contemporary communities in the regions of Posočje, central Slovenia, Carinthia and Styria.V prispevku so predstavljeni izsledki raziskav grobišča na Pristavi na Bledu v letih 1975–1978. Izkopavanja so zajela severni del nekropole, odkritih je bilo 33 železnodobnih grobov, 32 žganih in en skeletni, ter eno sežigališče. Način pokopa, pridatki iz grobov in raztresene najdbe dopolnjujejo sliko, ki so jo dala izkopavanja nekropole v letih 1948–1951. Grobišče je bilo v uporabi okrog 200 let v začetku starejše železne dobe. Lončenina in kovinske najdbe izpričujejo stike takratnih blejskih prebivalcev s sočasnimi skupnostmi na območjih Posočja, osrednje Slovenije, Koroške in Štajerske