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 ...

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 ...

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 ...

Building boundaries play an essential role in many applications such as urban planning and production of 3D realistic views. In this context, airborne LiDAR data have been explored for the generation of digital building ...

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 ...

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 ...

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 ...

Nowadays, the Center of Automation and Manufacturing Processes (NAFA) is space composed by Mechanical Engineering laboratories connected to the Technology Center (CT) of the Federal University of Santa Maria (UFSM). The ...

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 ...