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Remote sensing

Is photogrammetry as accurate as lidar?

Is photogrammetry as accurate as lidar?

Elmer Bol, new director of reality capture at Autodesk and founder of Alice Labs, spoke at SPAR Europe in November about the increasingly sophisticated technology that is allowing the accuracy of point clouds created by photogrammetry to approach the accuracy of terrestrial lidar and laser scanning.

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How to View Elevation Data in ERDAS IMAGINE

How to View Elevation Data in ERDAS IMAGINE

Emily Winter from Sterling Geo shows you how to view elevation data in Hexagon Geospatial’s ERDAS IMAGINE. Imagery: Contains Ordnance Survey data © Crown copyright and database right 2014 and USGS/NASA Landsat

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3D model of a real forest from airborne LiDAR

3D model of a real forest from airborne LiDAR

This is a fly through 3D digital model of a real forest (Bois noir forest Barcelonnette, France) from LiDAR derived forest inventory parameters and aerial ortho-image. The model was developed as part of my research on ‘Forest inventory parameters and Carbon mapping from airborne LiDAR’. High density, small footprint discrete airborne LiDAR is capable of capturing rich structural information of ...

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UAV Digital Terrain Model (DTM) Animation

UAV Digital Terrain Model (DTM) Animation

This is a high resolution animation of a DTM created using multiple UAV aerial images that was orthorectified and merged. This video shows an animation of the mosaic orthophoto and low-res DTM: http://www.youtube.com/watch?v=jx3CS7…

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