[Insight-users] Gradient descent Question PLEASE I NEED HELP

[Yixun Liu]

Hi Alaa,
Transform = (x + t_x, y + t_y)^T
theta = (t_x, t_y)^T

Yixun

----- Original Message ----- 
From: "alaamegawer" <alaamegawer at yahoo.com>
To: <insight-users at itk.org>
Sent: Monday, April 29, 2013 5:58 PM
Subject: [Insight-users] Gradient descent Question PLEASE I NEED HELP


> Please All
>
> I want to implement my Gradient descent and don't want to use implemented
> ItK  just to start learning
> so please take a look to attachment which contain my derivation to do that
> and i have a problem this derivation lead to add same value to
> displacement
> in x and y so please help me to know where's the error?
>
>
> Thanks In advance
>
> Alaa
> <http://itk-insight-users.2283740.n2.nabble.com/file/n7582905/GradientOptimazer.png>
>
>
>
>
>
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