Systems
and Technologies
Summaries
White
Papers and Publications
Video
Based 3D Reconstruction
Projective geometry
is the mathematics of mapping 3 dimensional
space to and from multiple 2 dimensional spaces
(images). By matching locations in images that
correspond to the same 3D points, the location
of those points in space and the camera postitions
can be determined.
An
Introduction to Projective Geometry
3D
Environment Capture from Monocular Video and
Inertial Data
High
Resolution Snapshot Profiling
A shape capture system for field and industrial
capture of surface contours and discontinuous
shapes has been developed for Hill Air Force
Base. The system developed has achieved smooth
surface first order flatness measurement accuracy
of +/- 2.5×10-4 inches over a 30 inch
diameter area, or better than one part in 100,000.
The highest point density successfully captured
was .06 inch centers over 90 inches, or 2 million
points in a circular area of 6360 square inches.
Capture of a 30 inch diameter area gave a height
resolution of 0.01 inches for small features,
and filtering was used to obtain 0.003 inch
resolution of ripples occurring over areas of
1 square inch or more. Laser pattern projection
allows full image capture in millseconds, making
this system suitable for measurement of complex
surface vibration patterns and dynamic object
position, orientation, and deformation.
Precision
Shape Capture
