On Wed 24-Apr-2013 at 09:35 -0700, Giancarlo Todone wrote:
Well, I hoped to calibrate my lens once and for all, and then use
the obtained values in subsequent panoramas. Since the robot scans
the panorama in rows, I can be pretty sure that regardless of
angle errors, all picture are the exact same pitch (since vertical
motor doesn't move at all during rows scan) and so i wanted to
manually move just yaw and give everything else for granted.
So usually my workflow is: use already found lens parameters,
manually edit PTO file to link pitch of all images on the same
row, then optimizing pitch, yaw, roll.
There could be all sorts of reasons why the pitch may not actually
be consistent, so you need to rule it out as a cause by optimising
pitch for every photo in your project as a test.
Also although the lens distortion parameters should be consistent,
the angle of view can change significantly, e.g. different focus
distances can alter the angle of view, so for a spherical panorama
you really need to _always_ optimise angle of view (v).
(angle of view isn't anything like as critical for partial
panoramas)
So I suggest you try a series of tests with different optimisation
settings:
- roll, yaw and view
- roll, pitch and yaw
- roll, pitch, yaw and view
- everything
--
Bruno
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