Comparison of four UAV georeferencing methods for environmental monitoring purposes focusing on the combined use with airborne and satellite remote sensing platforms

Joan Cristian Padró, Francisco Javier Muñoz, Jordi Planas, Xavier Pons

Research output: Contribution to journalArticleResearch

67 Citations (Scopus)

Abstract

This work is aimed at the environmental remote sensing community that uses UAV optical frame imagery in combination with airborne and satellite data. Taking into account the economic costs involved and the time investment, we evaluated the fit-for-purpose accuracy of four positioning methods of UAV-acquired imagery: 1) direct georeferencing using the onboard raw GNSS (GNSSNAV) data, 2) direct georeferencing using Post-Processed Kinematic single-frequency carrier-phase without in situ ground support (PPK1), 3) direct georeferencing using Post-Processed Kinematic double-frequency carrier-phase GNSS data with in situ ground support (PPK2), and 4) indirect georeferencing using Ground Control Points (GCP). We tested a multispectral sensor and an RGB sensor, onboard multicopter platforms. Orthophotomosaics at
Original languageEnglish
Pages (from-to)130-140
Number of pages11
JournalInternational Journal of Applied Earth Observation and Geoinformation
Volume75
Issue number75
DOIs
Publication statusPublished - 1 Mar 2019

Keywords

  • ASPRS standards
  • Direct georeferencing
  • Drone
  • Indirect georeferencing
  • Post-Processed Kinematic
  • UAV

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