Vertical positional accuracy assessment of a topographic lidar point cloud using conventional surveying as reference

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AudienciaPúblico en generales_ES
CoberturaMéxicoes_ES
Fecha de ingreso2026-10-05T16:34:22Z
Fecha de publicación2014-01-01
ResumenLidar is an active remote sensing technology that reduces the cost and time required to collect topographic data. The vertical accuracy of lidar data is normally set by commercial data providers at a maximum root mean square error of 0.150 m. However, the results of accuracy assessments where field data at least three times more accurate than lidar data have been used suggest that that accuracy is only met when the density of the lidar data is higher than 1 ground points per square meter. Unfortunately, the number of these studies is limited and more accuracy assessments are needed in order to establish the vertical accuracy of lidar data. In this paper, the vertical accuracy of a topographic lidar cloud point with a density of 1.02 ground points per square meter is assessed for different types of terrain. Reference data was collected on the field using a total station with millimeter accuracy in order to meet the ASPRS requirements for the accuracy assessment of lidar data. The results suggest that the vertical accuracy of topographic lidar data exceeds the accuracy specifications of commercial data providers and, also, are consistent with previous studies where the vertical accuracy of lidar was assessed under similar conditions. Therefore, it is suggested to set the vertical positional accuracy (EPV, after its Spanish acronym) of the lidar point cloud in 0.200 m for mixed terrain with constant changes and in 0.150 m for areas with smooth topographic changes. However, under the presence of systematic errors, the EVP does not convey the magnitude of 95% of the vertical errors, as intended; therefore, it is recommended to include the 95th error percentile in the documentation of lidar data.es_ES
URIhttps://riuat.uat.edu.mx/handle/123456789/6125
Idiomaeses_ES
EditorialInstituto de Geografiaes_ES
RelaciónInvestigaciones Geograficases_ES
URL relacionadohttps://www.scopus.com/pages/publications/84917696662?origin=resultslistes_ES
DerechosAcceso restringido / Suscripción (Metadatos de producción científica)es_ES
Licenciahttp://purl.org/coar/access_right/c_16eces_ES
FuenteInvestigaciones Geograficas
Palabra claveLidares_ES
Palabra clavePoint cloudes_ES
Palabra claveRoot mean square error (RMSE)es_ES
Palabra claveVertical positional accuracy (EPV)es_ES
TítuloVertical positional accuracy assessment of a topographic lidar point cloud using conventional surveying as referencees_ES
Título alternativoEvaluación de la exactitud posicional vertical de una nube de puntos topográficos lidar usando topografía convencional como referenciaes_ES
TipoArtículoes_ES
ArbitradoHa sido Arbitradoes_ES
AutorCastillo, Wilver Enrique Salinas
AutorHernández, Cutberto Uriel Paredes
AutorBecerra, Xicoténcatl Martínez
AutorCortina, Francisco Guevara
AutorCastillo, Wilver Enrique Salinases_ES
AutorHernández, Cutberto Uriel Paredeses_ES
AutorBecerra, Xicoténcatl Martínezes_ES
AutorCortina, Francisco Guevaraes_ES
InstituciónUniversidad Autónoma de Tamaulipas
InstituciónUniversidad Autónoma de Tamaulipases_ES
Rango de páginas5-17es_ES
URL relacionadahttps://www.scopus.com/pages/publications/84917696662?origin=resultslist
Tipo de artículoIndexado
Tipo de artículoIndexadoes_ES
Volumen85es_ES

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