Directions Magazine
Hello. Login | Register

Press Releases

Home | Submit Press Release

Warming up for ILMF 2014, rapidlasso puts lean yet plush “LASlayers” on LiDAR

Bookmark and Share
Monday, February 17th 2014
rapidlasso GmbH | Gilching, Germany
Read More About: las, laz, lidar


As a sweet foretaste to ILMF 2014, the creators of LAStoolsLASzip, andPulseWaves are announcing “LASlayers” already on Valentine’s Day. The new functionality nicely complements their popular and widely-used LiDAR compressor making the compressed LAZ files editable for most practical purposes. LASlayers significantly reduce I/O load for writing modification to LAS or LAZ files, especially when batch-processing LiDAR tiles on many cores in parallel or when sending changes to LiDAR files across bandwidth-limited networks.

Conceptually LASlayers add

LASlayers store modifications and additional  attributes to raw LAS or LAZ files in small LAY files avoiding to replicate data that has not changed.

Most point attributes (e.g. coordinates, intensities, scan angles, GPS times, etc.) are not modified when processing LiDAR. LASlayers avoids re-writing the unchanged portions of LAS or LAZ by storing only the actual differences layer by layer to a new “LAY” file. Changing the point classifications or deleting a few points, for example, can be done with LAY files that are just a tiny fraction of the size of a new LAS or LAZ file. Adding new attributes such as RGB colors or the height-above-ground with LASlayers means only this new information needs to be written.

This also provides simultaneous access to different versions of the data: a LiDAR server or a Web portal can store only a single copy of the raw LiDAR and apply LASlayers as needed on-the-fly, for example, to replace ellipsoidal with orthometric elevations or to add RGB colors.

Even users of other LiDAR processing software can readily take advantage ofLASlayers with the new “laslayers.exe” tool that computes the difference between a raw and a modified LAS or LAZ file and expresses it as a LAY file (assuming the point order has not changed). A typical use case is the exchange of modifications to LiDAR files between remote locations such as a vendor in Australia or Canada and a data processing center in China or India. Instead of up- and downloading the entire modified LAS or LAZ files, only the much smaller LAY files need to be send back and forth.

A fully featured prototype of LASlayers is available (10 MB including data) together with three simple exercises that illustrate the concept and allow interested parties to test it already today on their own data.

Bookmark and Share

Stay Connected

Twitter RSS Facebook LinkedIn Delicious Apple Devices Android Blackberry






Recent Comments

European OpenStreetMappers Meet as Project nears 10 year Anniversary

A gathering of the European OpenStreetMap communit, State of the Map Europe,  took place in Karlsruhe, Germany in June. Hundreds of attendees met to discuss various aspect of the project. Ed Freyfogle details how OpenStreetMap (OSM) has come a long way.

DoD, Partners Share Mapping Technology for Disaster Relief
Top Ten Stories from Esri’s International User Conference
Making Sense of the 2014 Esri International User Conference
Finding OGC WMS, WFS, WCS services
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

DirectionsMag.com

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