Picture – Mobile LiDAR data

Posted on December 9, 2010 by bloglidar

The picture is from an Optech Lynx system. Notice the coal veins on the side of the pit wall and the detail of the tractor. The veins appeared more detailed in the LiDAR data than in a RGB image.

Posted in LiDAR Pictures, mobile lidar | 4 Comments

DEM/DTM/DSM

Posted on December 8, 2010 by bloglidar

There has been much discussion about the definition of DEM, DTM, DSM. There will continue to be much debate and discussion on the meaning of these terms. I think and as recommended by other well versed individuals in our industry, more can be learned for publications. One of the best description of these terms can be found in the book Edited by David F. Maune PhD, CP titled “Digital Elevation Model Technologies and Applications: The DEM Users Manual, 2nd Edition”. The book can be purchased at the ASPRS book Store.

[ The DEM Users Manual, Editions 1 & 2; Maune]

Posted in DEM/DSM/DTM | Leave a comment

Optech LMS Link

Posted on December 7, 2010 by bloglidar

here is the link to the Optech LMS site

Optech LMS Software Link

Posted in LiDAR technology, Uncategorized | 1 Comment

Optech LMS

Posted on December 7, 2010 by bloglidar

There has been a lot of interest in the Optech LMS software. I will be getting a link from them to direct you to more information on this software. It will be posted here and under the software page. The Link will be posted by tomorrow.

Posted in LiDAR technology | Leave a comment

DEM-DSM-DTM

Posted on December 6, 2010 by bloglidar

What’s the difference between a DTM, DSM, and DTM? Several People have different Views on this so I am posting definitions from Keith Cunningham, Which I agree with.

DSM – Essentially the full point cloud, with ground, structures, and vegetation. (cheapest)
DEM – Bare Earth with structures and vegetation removed
DTM – DEM with thinned ground points (mass points) and breaklines. (most expensive)

Posted in DEM/DSM/DTM | 6 Comments

European LiDAR conference on track for sell out

Posted on December 3, 2010 by bloglidar

In just under three weeks the newly launched European LiDAR Mapping Forum opens its doors in The Hague, Netherlands to an expected 500+ delegates and over 50 exhibiting companies. The demand has been so great that the organizers have had to expand the exhibit area three times and it is now completely sold out. This two day technical conference with an associated exhibition will focus on the use of airborne, bathymetric and terrestrial LiDAR with a particular focus on mobile mapping to support transport, urban modelling and asset management and GIS applications. Whilst new to Europe, the organisers are obviously building on a track record of delivering a successful International LiDAR Mapping Forum (ILMF) in the USA for the past ten years.  Initially expecting a smaller version of the well established US event, expectations are now running high with more abstracts submitted than expected, exhibitors now exceeding 50 companies and delegate registrations coming in.

For more information on the ILMF conference Please click on the link:http://www.lidarmap.org/ELMF/

Posted in lidar events | Leave a comment

What is most important in Processing?

Posted on December 2, 2010 by bloglidar

By Far the most important component of Processing LiDAR data is the calibration of the LiDAR. More on this later..!

Posted in LiDAR Discussions | Leave a comment

American Surveyor

Posted on December 1, 2010 by bloglidar

Please see the January issue of American Surveyor for my article on the LYNX mobile mapping LiDAR System. The article covers the accuracy of the LYNX system and the recommended operation.

Posted in mobile lidar | 2 Comments

Building Extraction from LiDAR

Posted on November 30, 2010 by bloglidar

The is a representation of buildings automatically extracted from LiDAR.

Posted in LiDAR Pictures, LiDAR technology | Leave a comment

Feature Extraction Presentation

Posted on November 30, 2010 by bloglidar

Jamie Young will be presenting at the ILMF conference in New Orleans. The presentation will be on LiDAR feature extraction. The conference is being held feb 7-9. The presentation will cover anew way to extract features from LiDAR.

For more information on the ILMF conference Please click on the link: http://www.lidarmap.org/ILMF.aspx

Posted in lidar events | Leave a comment