Directions Magazine
Hello. Login | Register

White Papers

All White Papers

Rein in 3D Point Clouds with the LAS Format

Wednesday, November 2nd 2011
by ERDAS
Read More About: erdas, lidar

The advent of LiDAR sensors has been valuable for the geospatial industry, but there have been some challenges as the community attempts to fully leverage the technology. As you may already know, LiDAR is similar to radar in that both direct an active signal towards the surface of interest and receive a return signal reflected from the surface and objects on it. The time delay of this reflection is used to calculate range from the sensor to the surface. With radar, this results in formation of an “image” with intensities proportional to the reflectivity of the surface at radar wavelengths, which are in the microwave or radio range. In contrast, LiDAR processing is used along with sensor position information to determine the elevation of the surface at each reflection point, or the distance from an established reference plane in the case of terrestrial LIDAR.

DOWNLOAD WHITE PAPER

Bookmark and Share

Stay Connected

Twitter RSS Facebook LinkedIn Delicious Apple Devices Android Blackberry






Recent Comments

Finding OGC WMS, WFS, WCS services

Many voices chime in to answer the question “How does one find existing services that implement OGC Web Map Service (WMS), Web Feature Service (WFS), and Web Coverage Service (WCS) interface standards these days?” 

Top Ten Stories from Esri’s International User Conference
Is This Innovation? The Latest LBS Offerings
Survey India 2014 Focused on Infrastructure Development
Takeaways from the Esri Education GIS Conference 2014
Mercury Rising: When to Expect the “Warmest Day of the Year”
The Big Four Make Big Waves in Location Intelligence
How can I use crowdsourced data?
Esri UC 2014 Plenary: The More Things Change, The More They Stay the Same

DirectionsMag.com

About Us | Advertise | Contact Us | Web Terms & Conditions | Privacy Policy
© 2014 Directions Media. All Rights Reserved