A survey on urban vegetation detection using airborne lidar data images

摘要: Airborne lidar data is to be used in various applications urban environments, particularly mapping and modeling the city landscape 3D with its artificial land cover types such as buildings, power lines, bridges also non-elevated objects roads. The aim of this paper presenting a survey literature related classification techniques, emphasis on new sensors called full-waveform airborne data. Base systems consist laser transmitter receiver, mechanical scanner, hybrid positioning system, storage media, an operating system for signal digitization on-line acquisition. This unit monitors synchronizes measurements, processes real-time extract georeferenced points. give only basic geometric representation scene. Consequently, many authors developed automatic algorithms point classification, reconstruction forest assessment. Most them are based cloud analysis sometimes intensity.