Dear Lea,
I don't think there is UI in the MITK-IGT modules to do this so far. But
it shouldn't be a big deal to add it in the source code. Let's say you
have a tracker, tool 0 is you reference tool and you want to get the
pose of tool 1 in relation to tool 0. From the mitk::TrackingDevice you
can get the NavigationData of both tools which hold the tool-to-tracker
transformation T0 and T1. Tool 1 in relation to tool 0 can than computed
by calculating T0^-1 * T1. This calculation can be done with the
NavigationData object:
T1->compose(T0->GetInverse());
The IGT tracking lab example shows you how to use a sensor to move a CT
image and/or a surface. It includes some example code how to calculate
with NavigationData which also might be helpful.
I hope this helps.
Best,
Alfred
Am 13.12.2019 um 16:29 schrieb lkraut:
Hi everyone,
I'm using MITK to develop a navigation plugin for surgery. For the
navigation I am using elctromagnetic tracking (NDI Aurora tracking
system) with 3 sensors and 1 pointer-tool.
Before the surgery a registration process needs to be done.
To avoid errors because of movement, one of the sensors should be used
as a reference sensor. The outputs (NavigationData) of the sensors
should be relative to this reference sensor.
Is there the possibility to set one of the tools as a reference sensor?
I know that NDI offers such a functionality in the Aurora system. In
the Aurora API Guide the type of a tool can be set to 'Reference'.
Unfortunately I couldn't find this possibility in MITK yet.
Thanks a lot
Lea
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