Laser scanning reveals bryophyte canopy structure

Three-dimensional forest canopy structure from terrestrial laser scanning

A terrestrial laser scanner was used to measure the three-dimensional structure of forest stands in the Swiss National Park, eastern Switzerland. Spatially coincident hemispherical photographs were taken at each sampling point and the position of each point was determined using differential GPS. A scanner model was derived in order to determine the expected number of laser shots in all directio...

Robust characterization of forest canopy structure types using full-waveform airborne laser scanning

Canopy Extraction Using Airborne Laser Scanning Data in Forestry Areas

To understand the biomass condition in the forestry areas, the detection for individual trees becomes an important topic. For forestry management, the canopy may be described with several parameters, e.g., number of stems, stand position, tree height, timber volume, canopy cover, etc. Traditional methods rely on field measurements, imagery, and radar data to derive the canopy information. Follo...

Canopy clumping appraisal using terrestrial and airborne laser scanning

a Center for Spatial Technologies and Remote Sensing (CSTARS), University of California, Davis, One Shields Avenue, 139 Veihmeyer Hall, Davis, CA 95616, USA b Faculty of Forest Sciences, University of Talca, 2 Norte # 685, Talca, Chile c Department of Geology, Geography and Environment, University of Alcalá, Alcalá de Henares, 28801 Madrid, Spain d Institute of Economics, Geography and Demograp...

Two-dimensional Forest Canopy Architecture from Terrestrial Laser Scanning

Terrestrial laser scanners (TLS) are now capable of collecting 3d data clouds consisting of the x,y,z coordinates of several million laser hits, plus information on return intensity and, in some cases, target colour. TLS collect data at sub-centimetre resolution at a range of zenith view angles. This paper describes the results of a series of experiments in which a TLS was used to measure the t...