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Three-dimensional building roof boundary extraction using highresolution aerial image and LiDAR data
(2014-01-01)
This paper presents a semiautomatic method for rectilinear building roof boundary extraction, based on the integration of high-resolution aerial image and LiDAR (Light Detection and Ranging) data. The proposed method is ...
Extraction of Building Roof Boundaries From LiDAR Data Using an Adaptive Alpha-Shape Algorithm
(Ieee-inst Electrical Electronics Engineers Inc, 2019-08-01)
The alpha-shape algorithm was developed to extract object shapes in 2-D space; however, the accuracy of the result depends on an appropriate choice of the parameter alpha. This parameter is directly related to point density ...
BUILDING ROOF BOUNDARY EXTRACTION FROM LiDAR AND IMAGE DATA BASED ON MARKOV RANDOM FIELD
(Copernicus Gesellschaft Mbh, 2017-01-01)
In this paper a method for automatic extraction of building roof boundaries is proposed, which combines LiDAR data and high-resolution aerial images. The proposed method is based on three steps. In the first step aboveground ...
Automatic Building Boundary Extraction from Airborne LiDAR Data Robust to Density Variation
(2022-01-01)
The alpha-shape ( $\alpha $ -shape) concept, which has its origin in computational geometry, is usually applied in building boundary extraction from airborne LiDAR data. However, the results depend on the appropriate choice ...
Snake‐based model for automatic roof boundary extraction in the object space integrating a high‐resolution aerial images stereo pair and 3d roof models
(2021-04-02)
The accelerated urban development over the last decades has made it necessary to update spatial information rapidly and constantly. Therefore, citiesʹ three‐dimensional models have been widely used as a study base for ...
Building boundary extraction from LiDAR data using a local estimated parameter for alpha shape algorithm
(2018-09-20)
The α-shape algorithm is a very common option to extract building boundaries from LiDAR data. This algorithm is normally executed in 2D space considering a parameter α as a binary classifier which controls the distinctiveness ...
Uso integrado de dados LiDAR e imagens aéreas aplicado na extração de contornos de telhados de edificações
(Universidade Estadual Paulista (Unesp), 2016-02-29)
Esta dissertação contempla o desenvolvimento de um método que combina os dados LiDAR (Light Detection And Ranging) obtidos por sistema de varredura LASER (Light Amplification by Stimulated Emission of Radiation) e imagens ...
EXTRACTION OF ROOF LINES FROM HIGH-RESOLUTION IMAGES BY A GROUPING METHOD
(Copernicus Gesellschaft Mbh, 2016-01-01)
This paper proposes a method for extracting groups of straight lines that represent roof boundaries and roof ridgelines from high-resolution aerial images using corresponding Airborne Laser Scanner (ALS) roof polyhedrons ...
Extração e refinamento de contornos de telhados utilizando descritores geométricos e integração de dados LiDAR e imagens aéreas
(Universidade Estadual Paulista (Unesp), 2021-01-08)
Este trabalho trata da extração automática de telhados de edificações a partir de dados de Sistema de Varredura LASER Aerotransportado (SVLA) e imagens aéreas de alta resolução. O foco se refere à regularização de telhados ...
A Markov-Random-Field Approach for Extracting Straight-Line Segments of Roofs From High-Resolution Aerial Images
(Ieee-inst Electrical Electronics Engineers Inc, 2016-12-01)
This paper proposes a method for extracting groups of straight lines that represent roof boundary sides and roof ridgelines from high-resolution aerial images using corresponding airborne laser scanner (ALS) roof polyhedrons ...