right click on link to download a 7-page pdf briefing on 3D measurement with iWitness iWitness Basics.pdf 3.5mb
iWitness incorporates advanced digital photogrammetric techniques
in an inexpensive, easy-to-use system for 3D coordinate
measurement from digital imagery recorded with modern
digital cameras, both professional and consumer grade.
Software system features include:
Affordability, at under $US1000 per license
Very simple operation supported by automatic processes
Highly rigorous and robust photogrammetric orientation
Efficient and fast 'stitching' of photogrammetric project networks
Quality indicators at all stages of the measurement process along with
output of accuracy obtained
A fully automated process for camera calibration
Graphics capability for network analysis
Export of 3D measurement results in DXF format for CADD analysis
Photo-realistic texturing of 3D models
Generation of 3D curves and edges from 2D curve/line markings in
images
The handling of complex measurement tasks, with there being no
restrictions on the number of images employed or the number of
measurement points
click to enlarge image
click to enlarge image
Where can iWitness
be used?
Although capable of a range of 3D measurement
tasks from engineering measurement to heritage recording, iWitness has been
specifically optimised for applications in traffic accident
reconstruction and forensic measurement. Here its characteristics
of very fast data acquisition and rigorous photogrammetric
processing lead to both comprehensive 3D measurements
in minimum time, and a permanent visual record of the
scene being recorded.
