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Development and Assessment of a Data Set[-2pt] Containing Frame Images and Dense Airborne Laser Scanning Point Clouds
(2017-12-28)
This letter describes the main features of a data set that contains aerial images acquired with a medium format digital camera and point clouds collected using an airborne laser scanning unit, as well as ground control ...
A semi-automatic method for indirect orientation of aerial images using ground control lines extracted from airborne laser scanner data
(2012-09-10)
This paper presents a method for indirect orientation of aerial images using ground control lines extracted from airborne Laser system (ALS) data. This data integration strategy has shown good potential in the automation ...
Urban road classification in geometrically integrated high-resolution RGB aerial and laser-derived images using the artificial neural network classification method
(2018-05-05)
The problem of automated urban road network extraction is extremely complex because roads in urban scenes strongly interact with other objects. This problem can be simplified if road regions are first isolated using a ...
Predição de sombras de edifícios sobre vias urbanas com base em modelos digitais de elevações e dados de imagens aéreas de alta resolução
(Universidade Federal do Paraná (UFPR), Centro Politecnico, 2008-01-01)
This research presents a methodology for prediction of building shadows cast on urban roads existing on high-resolution aerial imagery. Shadow elements can be used in the modeling of contextual information, whose use has ...
Predição de sombras de edifícios sobre vias urbanas com base em modelos digitais de elevações e dados de imagens aéreas de alta resolução
(2008-12-01)
This research presents a methodology for prediction of building shadows cast on urban roads existing on high-resolution aerial imagery. Shadow elements can be used in the modeling of contextual information, whose use has ...
Nd:YAg Laser to obtain Irregularities on the Inner Surface of Porcelain
(2015-01-01)
Aim: The aim of this study was to evaluate the inner surface of two ceramic systems: IPS Empress II (Ivoclar Vivadent, Germany) and In-Ceram Alumina (Vita Zahnfabrick, Germany) submitted to surface treatments, especially ...
An estimate of biometric parameters in eucalyptus clone plantations in Southern Bahia: an application of the airborne laser scanning (ALS) technology
(IPEF-INST PESQUISAS ESTUDOS FLORESTAIS, 2010)
The application of airborne laser scanning (ALS) technologies in forest inventories has shown great potential to improve the efficiency of forest planning activities. Precise estimates, fast assessment and relatively low ...
Airborne LASER bathymetric data applicability to Nautical Cartography: Case study for Fernando de NoronhaAplicabilidade dos Dados Obtidos por Sistema LASER Batimétrico Aerotransportado à Cartografia Náutica: Estudo de Caso para o Arquipélago de Fernando de Noronha
(2021-01-01)
A Hydrographic Survey (HS) has as main goal to obtain data for editing and updating nautical documents, these, focused on the safety of navigation. In order to establish a standard of uncertainty parameters for nautical ...
Adaptive random sample consensus approach for segmentation of building roof in airborne laser scanning point cloud
(Taylor & Francis Ltd, 2019-10-27)
This work proposes a three-step method for segmenting the roof planes of buildings in Airborne Laser Scanning (ALS) data. The first step aims at mainly avoiding the exhaustive search for planar roof faces throughout the ...
Postprocessing synchronization of a laser scanning system aboard a UAV
(2019-10-01)
Synchronization of airborne laser scanning devices is a critical process that directly affects data accuracy. This process can be more challenging with low-cost airborne laser scanning (ALS) systems because some device ...