3D laser scanning imaging documentation Rechenbach English - Laser Scanning Architecture

3D-Imaging: Description of the Technology

Laser scanning is a relatively young 3D measurement technique offering much potential in the acquisition of precise and reliable 3D object geometries and geodata.

The Laser Scanner is a portable non-contact measurement system which uses laser technology accurately to measure all kinds of buildings such as manufacturing plants, processing facilities, heritage sites and even structures such as bridges and other greater constructions.  The system rotates 360 degrees and automatically measures everything within the line of sight from the scanners position. The stand-alone system records millions of 3D measurements in real time.

The economic decision to use 3D imaging systems versus other methods depends on several factors. Important factors affecting the decision include project requirements (e.g., measurement uncertainty, resolution, level of detail), project schedule, and costs. The potential for multi-use of the 3D imaging data is high and this benefit should be factored into the cost consideration. There are many case studies which indicate significant cost savings realized from properly scoped and executed 3D imaging projects.

For jobs involving simple geometries and readily accessible work sites, 3D imaging systems may not be the best choice. However, even if the alternative is less costly, 3D imaging may still be a better alternative depending on the expected use of the information. For example, the information may be multi-use in that it may be used by both HVAC and AEC contractors.

The scandata can be used for all kinds of animations
as in this perspective view of the old part of town in Hanover

Here is an interview
with Johannes Rechenbach at
the website of the Spar Point Group

 

Here is an article
about the advantages
of 3D-laser-scanning
for the use in architecture