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Avbelj J.,FGG | Avbelj J.,TU Munich | Iwaszczuk D.,TU Munich | Stilla U.,TU Munich | Ostir K.,Znanstvenoraziskovalni center
Geodetski Vestnik

The aim of this article is to investigate methods for the automatic extraction of the infrared (IR) textures for the roofs and facades of existing building models. We focus on the correction of the measured exterior orientation parameters of the IR camera mounted on a mobile platform. The developed method is based on point-to-point matching of the features extracted from IR images with a wire-frame building model. Firstly, the extraction of different feature types is studied on a sample IR image; Förstner and intersection points are chosen for a representation of the image features. Secondly, the three-dimensional (3D) building model is projected into each frame of the IR video sequence using orientation parameters; only coarse exterior orientation parameters are known. Then the automatic co-registration of a 3D building model projection into the image sequence with image features is carried out. The matching of a model and extracted features is applied iteratively, and exterior orientation parameters are adjusted with least square adjustment. The method is tested on a dataset of a dense urban area. Finally, an evaluation of the developed method is presented with five quality parameters, i.e. efficiency of the method, completeness and correctness of matching and extraction. Source

The implementation of information and communication technologies (ICT) in university curricula is important for the development of graduates' competences and their preparation for the labour market. ICT use encourages the development of collaboration, creativity, leadership, and other generic and subjectspecific competences. In this paper, the results of a survey among Slovene geodesy students conducted in 2009 are presented. The survey focuses on the modes in which students use ICT in learning and on their views of the impact that ICT use has on their studies. The results cover (1) ICT literacy and competences for learning with ICT, (2) actual ICT use in learning and other activities, (3) preferences for ICT use in learning, and (4) assessment of the impact ICT use has on university studies. The results are significant for higher education policy planners, curriculum designers and for ICT infrastructure-related managerial and administrative decision making in higher education institutions; they are also an important source of information for teachers who want to modify their teaching methods. The results of similar surveys in the UK, Germany, the US and Australia are also presented. Findings of the survey among Slovene geodesy students show that they rank their general ICT literacy higher than their competences for learning with ICT. They believe that ICT literacy and competences for learning with ICT should be further developed. Results show that preferences for ICT use are higher than actual ICT use. The impact assessment of ICT use in the study shows that orientation to digital approaches to learning and the actual use of such approaches are ranked higher than those in which ICT is used for assisting traditional study approaches. Source

Marjetic A.,FGG | Zemljak M.,KOSTAK d.d | Ambrozic T.,FGG
Geodetski Vestnik

The Delft approach, a method for the deformation analysis, is presented in this article. Based on geodetic measurements, the statistical significance of displacements at the surface is determined with statistical methods. A numerical example shows the effectiveness of the presented method. Source

Woellner S.S.,FURB | Araujo A.G.D.S.,FGG | Risso P.R.,Fisioterapia da Faculdade Guilherme Guimbala FGG | Hoepfer Jr. H.,Associacao Brasileira de Alzheimer
Revista Brasileira de Medicina

The alterations of the aging, as decline of balance and functional mobility, are aggravated by Alzheimer Disease (AD) and has an important role in many falls in elderly people. Risk of falls in elderly can be predicted by characteristics during the assessment. The purpose of this study was compare the performance-oriented mobility in older adults with and without Alzheimer's Disease (AD). The present study is causal-comparative degree. We assessed 20 subjets divided in 2 groups, 10 in AD group and 10 in control group. To assess functional mobility Timed Up & Go test (TUGT) and Performance-Oriented Mobility Assessment (POMA) were used. In POMA test the group AD had an average of 36,2 (±11,07) and the control group had an average of 54,3 (±2,37). In TUG test, AD group had an average of 50,3s and the control group and average of 11,73. Differences between groups was statistically significant (P< 0.01), where the group AD presents decrease of the balance, gait and functional mobility when compared with control group. It suggests more risk of falls in elderly with Alzheimer disease (AD). © Copyright Moreira Jr. Editora. Source

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