Detail publikace

Assessing the Accuracy of Digital Surface Models Derived from Optical Imagery Acquired with Unmanned Aerial Systems

Manfreda, Salvatore Dvorak, Petr Mullerova, Jana Herban, Sorin Vuono, Pietro Justel, Jose Perks, Matthew

Originální název

Assessing the Accuracy of Digital Surface Models Derived from Optical Imagery Acquired with Unmanned Aerial Systems

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

Small unmanned aerial systems (UASs) equipped with an optical camera are a cost-effective strategy for topographic surveys. These low-cost UASs can provide useful information for three-dimensional (3D) reconstruction even if they are equipped with a low-quality navigation system. To ensure the production of high-quality topographic models, careful consideration of the flight mode and proper distribution of ground control points are required. To this end, a commercial UAS was adopted to monitor a small earthen dam using different combinations of flight configurations and by adopting a variable number of ground control points (GCPs). The results highlight that optimization of both the choice and combination of flight plans can reduce the relative error of the 3D model to within two meters without the need to include GCPs. However, the use of GCPs greatly improved the quality of the topographic survey, reducing error to the order of a few centimeters. The combined use of images extracted from two flights, one with a camera mounted at nadir and the second with a 20° angle, was found to be beneficial for increasing the overall accuracy of the 3D model and especially the vertical precision.

Klíčová slova

topographic surveys; planar and vertical precision; unmanned aerial systems (UASs); digital surface models (DSMs)

Autoři

Manfreda, Salvatore; Dvorak, Petr; Mullerova, Jana; Herban, Sorin; Vuono, Pietro; Justel, Jose; Perks, Matthew

Vydáno

30. 1. 2019

Nakladatel

MDPI

Místo

Basel, Switzerland

ISSN

2504-446X

Periodikum

Drones

Ročník

3

Číslo

1

Stát

Švýcarská konfederace

Strany od

1

Strany do

14

Strany počet

14

URL

https://www.mdpi.com/2504-446X/3/1/15

BibTex

@article{BUT156192,
  author="Manfreda, Salvatore and Dvorak, Petr and Mullerova, Jana and Herban, Sorin and Vuono, Pietro and Justel, Jose and Perks, Matthew",
  title="Assessing the Accuracy of Digital Surface Models Derived from Optical Imagery Acquired with Unmanned Aerial Systems",
  journal="Drones",
  year="2019",
  volume="3",
  number="1",
  pages="1--14",
  doi="10.3390/drones3010015",
  issn="2504-446X",
  url="https://www.mdpi.com/2504-446X/3/1/15"
}