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invcamcal

camera calibration

c = invcamcal(C)

Decompose, or invert, a 3x4camera calibration matrix C.

The result is a camera object with the following parameters set:

f
sx, sy  (with sx=1)
(u0, v0)  principal point
Tcam is the homog xform of the world origin wrt camera

Since only f.sx and f.sy can be estimated we set sx = 1.

REF: Multiple View Geometry, Hartley&Zisserman, p 163-164

SEE ALSO: camera


 

© 1990-2012 Peter Corke.