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Browsing by Subject "point clouds"

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  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    A comparison of accuracy between point clouds from convergent images and spherical panoramas
    (Wydawnictwa AGH, 2017) Szlapińska, Sylwia; Tokarczyk, Regina
    The work includes the results of a comparison of point clouds made on the basis of convergent images and spherical panoramas from the photos taken in the same center of projection. The results were compared for the group of convergent photos and panoramas in relation to accuracy, cloud density and measurement economics. The research was carried out on the test fi eld inside a large building. The convergent photos and panoramas were taken using the Canon EOS 5D camera. The robotic camera mount GIGA PAN Epic Pro was used to make panoramas. For calculations and building models the Agisoft PhotoScan application was selected, as it has a function of automatic orientation and adjusting photos. The comparison of point cloud accuracy, from which the control point coordinates were taken, has shown that the accuracy of the model made from the photos was 19 mm, and the accuracy of panorama model was 73 mm. As the worse result of panorama cloud accuracy may be caused by much lower density, the eff ect on their accuracy was also checked by making an analytical determination of control point coordinates at the stage of photo and panorama orientation. The analysis has proven that the model made of convergent photos is more accurate (20 mm) than the model made of panoramas (36 mm).
  • thumbnail.journal.alt
    Item type:Thesis, Access status: Restricted ,
    Lokalizacja odległych obiektów za pomocą skanera Orbbec3d
    (Data obrony: 2018-02-05) Słysz, Mateusz
    Wydział Geologii, Geofizyki i Ochrony Środowiska
    W pracy przedstawiono wyniki badań nad możliwościami wyznaczania obiektów znajdujących się w zadanej odległości od skanera Orbbec Persee. Na podstawie przeprowadzonych testów zbadano dokładność i precyzję urządzenia pomiarowego oraz możliwość zastosowania powszechnie dostępnych bibliotek. Na końcu przedstawiono wnioski wynikające z poczynionych obserwacji.