[ITK] [ITK-users] Metric Evaluation

[Richard Frank]

What optimizer/ algorithm  are you using?  Some use random selections of data as a speed optimization which on average give good results for better performance. But possibly slightly different results. If the differences are great then you might have to look at how you pick the first "guess"...how the images are pre-positioned prior to registration.

Rick Frank

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> On Jan 2, 2016, at 12:00 PM, "insight-users-request at itk.org" <insight-users-request at itk.org> wrote:
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>   1. Metric Evaluation (suneeza hanif)
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> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Fri, 1 Jan 2016 23:17:36 +0100
> From: suneeza hanif <suneezahanif02 at gmail.com>
> To: insight-users at itk.org
> Subject: [ITK-users] Metric Evaluation
> Message-ID:
>    <CA+-JtYVXHj_n4=0NDkv6Urmgqqh=8OUXiqDkw3DwNQq_Nni6Sw at mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
> 
> Hello Everyone,
> 
> I need help regarding metric calculation. When I run registration algorithm
> and use final results(e.g. rotation angle and translation) to calculate
> metric once again at the end of process I get different value as compared
> to the value of metric evaluated in last iteration. I am using same metric
> for registration and later.
> 
> I also did this after one iteration but i still i get different values.
> 
> Does anyone know how to solve this problem?
> 
> Thanks in advance.
> 
> Best Regards,
> Suneeza
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