Browsing by Subject "digital photogrammetry"

Now showing 1 - 9 of 9

Access status: Open Access ,
Automatyczna detekcja i pomiar markerów w fotogrametrycznym systemie trójwymiarowego pozycjonowania ciała dla celów rehabilitacji leczniczej
(Wydawnictwa AGH, 2006) Tokarczyk, Regina ; Huppert, Michał
Photogrammetric system of positioning for the purpose of medical rehabilitation is based on the images of digital cameras and allows the determination of spatial co-ordinates of selected points of human body. These points consist of characteristic places of skeleton transferred into the surface of human body. They are marked by light foamed polystyrene balls. Apart from these points, also patients' pupils were examined. Reference system is defined by flat paper sheets situated in one surface. The mentioned above points are measured manually, which makes the system not very competitive compared to other systems working in this field. In the framework of developing and modernizing this system, studies on automatic detection and measurement in digital images of the mentioned above three groups of points were carried out. For the detection of markers on the patient's body the method of searching referring to a defined colour was chosen. This search is carried out in the HSI area of colours. For the groups of pixels discovered in the pair of images and making images of markers - centres are determined and then connected into homological pairs based on the following criteria: belonging to a proper epipolar line and minimum of vertical parallax. The proposed method was compared to the manual measurement and it was successful in terms of its accuracy. Because amateur compact digital cameras, used for the recording of the image, save this image in JPG, causing quality loss, the influence of the degree of compression on the accuracy of automatic measurement was examined.
Access status: Open Access ,
Automatyzacja fotogrametrycznych pomiarów odkształceń dachowych dźwigarów hal przemysłowych
(Wydawnictwa AGH, 2006) Bernasik, Jerzy; Mikrut, Sławomir
The determination of the roof crones deflection is the generally measurements in the industrial halls. The measurements is inhibited by particular condition of the operation in high industrial halls: movements and vibration (if the production is not stopped), the movements of the different conveyance and dust. If the production is stopped still remain the problems with high, danger (high voltage), weak lights, inhibit access and time restriction. Due to problems of leveling measurement the deflection of cranes in high halls, the one-images photogrammetric method is very often the best. It was use in analogue version. The digital photogrammetry shows the new possibility. In this paper three methods are presented: analogue, digital-analogue (the scanned images measurements on the photogrammetric station), and automatic image processing. The description of used technologies made rich about conclusion and recommendation for the next performers. The results of the experimental measurements and their accuracy are presented. Presented results allows to treat these described photogrammetric method as fully useful and value in accuracy. The advantages of the digital technology particular allows to recommend its for universal use.
Access status: Open Access ,
Digital photogrammetry and CAD/BIM technology in reconstruction of computer models for concept of virtual factory
(Wydawnictwa AGH, 2023) Stryhunivska, Olena
This research article aims to check the feasibility of combining digital photogrammetry and CAD/BIM technology in an effort to develop a 3D digital model for the concept of Virtual Factory. The main objective of this research is the evaluation and continuous improvement of all of the relevant processes of creating spatial layout planning. During the research, a 3D floor plan of a laboratory was created to find matching common features for these methods. The article presents a comparative analysis of the time that is needed to create a spatial layout in which one can see exactly where each particular element is placed in the spatial arrangement of a point-to-point montage. On this ground, one of the key elements that determines the success of a design result is the effectiveness of the design process. Furthermore, the article indicates the scope of possibilities for using modern photogrammetric techniques for inventory building interiors and compare the speed of the measurement processing using PhotoModeler Scanner and ArchiCAD software.
Access status: Restricted ,
Wykonanie fotoplanu muralu Silva Rerum
(Data obrony: 2013-01-19) Potyrała, Mateusz; Poręba, Dorota
Wydział Geodezji Górniczej i Inżynierii Środowiska
Access status: Restricted ,
Wykonanie fotoplanu muralu Silva Rerum
(Data obrony: 2013-01-19) Poręba, Dorota; Potyrała, Mateusz
Wydział Geodezji Górniczej i Inżynierii Środowiska
Access status: Restricted ,
Wykonanie wysokorozdzielczego fotoplanu malowidła ściennego (muralu) z wykorzystaniem przekształcenia rzutowego
(Data obrony: 2013-01-19) Gawlik, Natalia; Gut, Dorota
Wydział Geodezji Górniczej i Inżynierii Środowiska
Access status: Restricted ,
Wykonanie wysokorozdzielczego fotoplanu malowidła ściennego (muralu) z wykorzystaniem przekształcenia rzutowego
(Data obrony: 2013-01-29) Gut, Dorota; Gawlik, Natalia
Wydział Geodezji Górniczej i Inżynierii Środowiska
Access status: Open Access ,
Wysokorozdzielcze zobrazowania satelitarne a zdjęcia lotnicze
(Wydawnictwa AGH, 2006) Kaczyński, Romuald; Ewiak, Ireneusz
The article presents the results of the studies on the accuracy of geometric correction and generating digital orthophotomaps of high-resolution satellite images IKONOS and QuickBird compared to the results of photogrammetric blocks of airborne photographs taken with cameras allowing the registration of the centres of projection with the dGPS method. The accuracies of geometric corrections of IKONOS and QuickBird images were examined with different methods and the minimal number of photopoints was determined for them. The accuracy on control points was 0.4 pixel. Digital orthophotomaps from IKONOS data can be generated with 1 m pixel, which corresponds to the accuracy of maps in 1:10 000 scale, and QuickBird data can be generated with the accuracy of 0.5 m pixel, which corresponds to the scale 1:5000. Advantages and limitations of high-resolution satellite images were presented compared to classical photogrammetric pictures.
Access status: Open Access ,
Zastosowanie naziemnej fotogrametrii cyfrowej do aktualizacji mapy numerycznej w odkrywkowych zakładach górniczych
(Wydawnictwa AGH, 2009) Gawin, Anna
One of the basic tasks of surveying mining services in outcast mining is performing geodesy works related to the construction, expansion and movement of a mine, including surveying the taken overburden and mined mineral. Close-range photogrammetry is a method that allows the periodical surveying of exploited mining opencasts to be performed quickly and in a safe way. It is used in PGE KWB »Bełchatów« SA from the middle 70s of the last century. However, the analytical photogrammetry used so far, based on analogue solutions, is not sufficient anymore. Considering economic factors, technological development and work ergonomics in mining surveying, some activities has been performed, aiming at implementing new surveying methods to update digital opencast model in PGE KWB »Bełchatów« SA. In 2005, the Department of Surveying started the new technology implementation program, using terrestrial digital pictures and digital workstations to perform photogrammetric measurements. This paper presents the technological process and the results of the research related to the possibility of using digital photogrammetry for opencast mining purposes in the scope of numerical map updating.