Dear Rocio and Emetss,
if you define the tool tip calibration manually, you define a
transformation from tool coordinate space to the coordinate space of
your tracked marker. In principle, the tool coordinate space is a matter
of definition. To give and example: if you have a needle as tracked
object and define that your needle tip is located in the origin and
aligned along the z-axis, you can set your transfromation to the marker
(if you know the geometry).
It's maybe interesting for you that currently a number of tasks
regarding tool tip calibration are "in progress". I personally worked on
this branch (which includes a number of bug fixes):
T23952-ToolCalibrationClearVector
<https://phabricator.mitk.org/source/mitk/browse/T23952-ToolCalibrationClearVector/>
And this branch also includes many fixes of the navigation modules:
<https://phabricator.mitk.org/source/mitk/browse/T23952-ToolCalibrationClearVector/><https://phabricator.mitk.org/source/mitk/browse/T23952-ToolCalibrationClearVector/>T22595-NavigationModules-2016.11.3-igt
<https://phabricator.mitk.org/source/mitk/browse/T22595-NavigationModules-2016.11.3-igt/>
Best,
Alfred
Am 18.12.2017 um 04:54 schrieb emetss:
Dear Rocio,
Many thanks for your answer. Yes I think as you said it's a problem with the
tool tip callibration.
The problem was for me when I open the Tool Tip calibration then I have four
options:
Manual, Single Reference Tool, Multiple Tools Reference, and Pivoting. I
think Pivoting is easy (since you don't need data to enter) but the Last two
are not yet implemented.
So I have Manual, and Single Reference Tool. Manual (if translation and
rotation are already known). I have .rom calibration files (from NDI Polaris
Camera) of the pointer and of the model but I don't know about how to get
the orientation, translation. With respect to which coordinates? And
rotation of what?
Second option (single reference tool) by using a tool as a pointer that is
already calibrated. (I only have one pointer and a model and I don't think
the tool tip of my pointer is calibrated yet).
Many thanks in advance for your help
--
Sent from: http://mitk-users.1123740.n5.nabble.com/
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