[IGSTK-Users] About pivot calibration

[Hyungmin Kim]

Thanks for your reply.

It seems like I have to refer to translation vector in calibration
transform, instead of using pivot point.

But I found out that the translation vector in my project is different with
the one from example project.
I think this could be due to the involvement of DRB during the calibration.
I initialized camera with three different tools.
In my case, the acquisition doesn't proceed without the visibility of DRB,
which is not necessary for calibration of probe.

Is there any idea on this?


On Tue, Dec 15, 2009 at 11:09 PM, Patrick Cheng
<cheng at isis.georgetown.edu>wrote:

> Hi Hyungmin Kim,
>
> The "pivot point" is the fixed point during the calibration process. It's
> in the camera space.
>
> What you are looking for is the "Offset" in the calibration result, which
> is the translation between tool tip and its own cordinate system origin.
>
> Patrick
>
>
> On 12/15/2009 5:00 PM, Hyungmin Kim wrote:
>
>> Hi all,
>>
>> I am trying to integrate pivot calibration into my project by referring
>> to PivotCalibrationFLTKWidgetExample project.
>> I got same result with the example project.
>> But the resulting pivot point seems in camera coordinate system not in
>> tool coordinate system.
>> Do I have to apply additional transformation to get pivot point in tool
>> coordinate system?
>>
>> Thanks
>>
>>
>>
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