RT info:eu-repo/semantics/article
T1 A new method for positional accuracy control for nonnormal errors applied to airborne laser scanner data
A1 Ariza-López, Francisco Javier
A1 Rodríguez-Avi, José
A1 González-Aguilera, Diego
A1 Rodríguez Gonzálvez, Pablo
A2 Ingeniería CartograficaGeodesica y Fotogrametria
K1 Cartografía
K1 ALS data
K1 non-normal errors
K1 Positional accuracy
K1 Quality control
K1 Multinomial distribution
AB A new statistical method for the quality control of the positional accuracy, useful in a wide range of data sets, is proposed and its use is illustrated through its application to airborne laser scanner (ALS) data. The quality control method is based on the use of a multinomial distribution that categorizes cases of errors according to metric tolerances. The use of the multinomial distribution is a very novel and powerful approach to the problem of evaluating positional accuracy, since it allows for eliminating the need for a parametric model for positional errors. Three different study cases based on ALS data (infrastructure, urban, and natural cases) that contain non-normal errors were used. Three positional accuracy controls with different tolerances were developed. In two of the control cases, the tolerances were defined by a Gaussian model, and in the third control case, the tolerances were defined from the quantiles of the observed error distribution. The analysis of the test results based on the type I and type II errors show that the method is able to control the positional accuracy of freely distributed data.
PB MDPI
SN 2076-3417
LK http://hdl.handle.net/10612/12347
UL http://hdl.handle.net/10612/12347
NO 18 p.
DS BULERIA. Repositorio Institucional de la Universidad de León
RD 27-abr-2024