Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "SfM photogrammetry" wg kryterium: Temat

  Lista filtrów
Wyrównaj
    Wyświetlanie 1-4 z 4
    Tytuł:
    Wstępna analiza możliwości zastosowania cyfrowej niemetrycznej fotogrametrii naziemnej z wykorzystaniem metody SfM (Structure-from-Motion) w robotach strzałowych
    Preliminary study of the digital non-metric terrestrial photogrammetry carried out by the use of the SfM method (Structure-from-Motion) applicability in blasting works
    Autorzy:
    Dworzak, M.
    Biessikirski, A.
    Pyra, J.
    Sołtys, A.
    Winzer, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/165565.pdf
    Data publikacji:
    2015
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Górnictwa
    Tematy:
    skaning laserowy
    naziemna fotogrametria niemetryczna
    metoda SfM
    roboty strzałowe
    laser scanning
    terrestrial non-metric photogrammetry
    SfM method
    blasting works
    Opis:
    W artykule przedstawiono rezultaty wstępnych badań, mających na celu ocenę możliwości zastosowania fotogrametrycznej metody Structure-from-Motion w celu tworzenia przestrzennych modeli ścian eksploatacyjnych w górnictwie odkrywkowym i ich inżynierskiego wykorzystania w procesie projektowania robót strzałowych. W wyniku przeprowadzonych analiz, na podstawie dokumentacji fotograficznej sporządzonej w Kopalni Dolomitu „Dubie”, wykonano model przestrzenny, a następnie zweryfikowano poziom dokładności jego reprezentacji poprzez porównanie z chmurą punktów uzyskaną w trakcie skanowania 3D skarpy skalnej.
    This paper presents the preliminary studies in subject of the assessment of the possibility of the implementation of The Structure-from-Motion photogrammetric method in the purpose to create three-dimensional exploitation slope models in opencast mines as well as the engineering use of this method in blasting design process. The photographic documentation which was used in the analysis was taken in The Dolomite Open Strip Mine “Dubie”. As the result of the analysis the spatial model was performed. The model’s verification by the comparison of the design model and the obtained point-cloud throughout the 3D laser scanning of the rock slope was included.
    Źródło:
    Przegląd Górniczy; 2015, 71, 9; 61-68
    0033-216X
    Pojawia się w:
    Przegląd Górniczy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Utilisation of laser scanning technology and digital images for measurements of industrial objects - a case study
    Autorzy:
    Zawieska, D.
    Markiewicz, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/106818.pdf
    Data publikacji:
    2015
    Wydawca:
    Politechnika Warszawska. Wydział Geodezji i Kartografii
    Tematy:
    photogrammetry
    computer vision
    CV
    SfM
    terrestrial laser scanning
    engineering surveys
    deformations
    fotogrametria
    widzenie komputerowe
    rozpoznawanie obrazu
    naziemny skaning laserowy
    badania techniczne
    odkształcenia
    Opis:
    Projection of a complicated geometry of industrial objects is the complex issue, which requires properly planned and prepared measurements. Such objects must be accurately inventoried, but their complicated nature often makes the access and the visibility of their entire surface very difficult. Documentation of measurements is often prepared in the form of sketches, plans or maps, which are amended with photographic documentation. The objective of this paper is to test the possibilities to apply laser scanning and the network of digital images for inventory and monitoring of technical conditions of industrial objects. Processing of a precise documentation acquired basing on terrestrial laser scanning data or dense points clouds generated from digital images still causes many difficulties and problems. Although data processing algorithms have been intensively developed with respect to generation of high resolution orthoimages or precise vector drawings, the existing problems are still connected with limitations related to imperfections of both techniques of measurements.
    Źródło:
    Reports on Geodesy and Geoinformatics; 2015, 98; 28-38
    2391-8365
    2391-8152
    Pojawia się w:
    Reports on Geodesy and Geoinformatics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Impact of Photo Overlap, the Number of Control Points and the Method of Camera Calibration on the Accuracy of 3D Model Reconstruction
    Autorzy:
    Róg, Marta
    Rzonca, Antoni
    Powiązania:
    https://bibliotekanauki.pl/articles/1838019.pdf
    Data publikacji:
    2021
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    SfM algorithm
    3D reconstruction
    close range photogrammetry
    accuracy assessment
    photogrammetric network parameters
    Opis:
    This research attempted to determine the optimal photo overlap, number of control points and method of camera calibration for a photogrammetric 3D model reconstruction of an object of cultural heritage value. Terrestrial images of the object were taken with a hand held digital camera and processed in the ContextCapture software using the Structure from Motion (SfM) algorithm. A total station was used to measure ground control points (GCPs) and check points. Here, the research workflow, methodology, and various analyses concerning different configurations of the aforementioned factors are described. An at tempt to assess the parameters which should be implemented in order to pro vide a high degree of accuracy of the model and reduce time consumption both during fieldwork and data processing was taken. The manuscript discusses the results of the analyses and compares them with other studies presented by different authors and indicates further potential directions of studies within this scope. Based on the authors’ experience with this research, some general conclusions and remarks concerning the planning of photo acquisition from the terrestrial level for the purpose of 3D model reconstruction were formulated.
    Źródło:
    Geomatics and Environmental Engineering; 2021, 15, 2; 67-87
    1898-1135
    Pojawia się w:
    Geomatics and Environmental Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    An assessment of the accuracy of structure-from-motion (SfM) photogrammetry for 3D terrain mapping
    Autorzy:
    Iheaturu, Chima Jude
    Ayodele, Emmanuel Gbenga
    Okolie, Chukwuma John
    Powiązania:
    https://bibliotekanauki.pl/articles/100406.pdf
    Data publikacji:
    2020
    Wydawca:
    Uniwersytet Rolniczy im. Hugona Kołłątaja w Krakowie
    Tematy:
    SfM photogrammetry
    orthophoto
    DSM
    topography
    GNSS
    fotogrametria SfM
    ortofotomapa
    topografia
    Opis:
    Unmanned Aerial Vehicles (UAVs) equipped with photogrammetric or remote sensing instrumentations offer numerous opportunities in mapping and data collection for topographic modelling. An example is an emerging technique known as Structure-from-Motion (SfM) photogrammetry used for the collection of low-cost, high spatial resolution, three-dimensional data. This study utilised the real time kinematic-based point-to-point validation technique and two sets of randomly selected ground control points to assess the capability and geometric accuracy of SfM-technology for three-dimensional (3D) terrain mapping over a small study area to contribute to the knowledge of applicability. The data used was collected in Garscube Sports Complex, Glasgow City Council, Scotland. The study utilised fifteen (15) Ground Control Points (GCPs) coordinated by the Real Time Kinematic Global Navigation Satellite System (RTK GNSS) positioning technique, while a DJI Phantom 3 Professional unmanned aerial vehicle was used to obtain the aerial photos in a single flight to minimise cost. The processing of the photos was done using Pix4Dmapper Pro software version 4.2.27. A point-to-point validation method was used to evaluate the 3D positional accuracy of the orthophoto and DSM. The results of the validation with ten checkpoints suggest a high level of accuracy and acceptability given a Root Mean Square Error of 20.93 mm, 18.48 mm and 46.05 mm in the X, Y and Z coordinates respectively. In conclusion, the study has shown that SfM technique can be used to produce high-resolution and accurate topographic data for geospatial applications with significant advantages over the traditional methods. However, it is to be noted that the quality of the data captured is dependent on the methodology adopted and should be taken into consideration.
    Źródło:
    Geomatics, Landmanagement and Landscape; 2020, 2; 65-82
    2300-1496
    Pojawia się w:
    Geomatics, Landmanagement and Landscape
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

      Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies