User's Manual

Speciﬁcations

to diﬀerent camera positions, ground curvature and relief are corrected for

so that the image displays accurately in the given map projection.

photogrammetry A techniquein which measurements takenfromphotographs

are used to reconstruct a 3D surface or a series of points in space.

point cloud A set of data points within a coordinate system.

rayCloud Afeatureunique toPostﬂight Terra3D that combinesthe 3D point cloud

with the original images. Multi ray matching with the rayCloud extends the

stereo view triangulation and increases the accuracy of 3D point estimates

while providing a full understanding of 3D results.

triangle model An approximate representation of a surface, constructed from

connected triangles.