<div style="line-height:1.7;color:#000000;font-size:14px;font-family:arial"><pre style="color: rgb(0, 0, 0); font-family: arial; font-size: 14px; line-height: 1.7; ">Hello,</pre><pre><span style="line-height: 1.7;">I have a question about Demons registration,I use Demons </span><span style="color: rgb(0, 0, 0); font-family: arial; font-size: 14px; line-height: normal; "> for registering 4D </span><span style="color: rgb(0, 0, 0); font-family: arial; font-size: 14px; line-height: normal; ">CT lung datasets.</span></pre><pre><span style="line-height: normal; ">I use the example </span><span style="line-height: normal;">\InsightToolkit-3.20.0\Example\Registration\DeformableRegistration2.cxx to do my work,and just change the </span></pre><pre><span style="line-height: normal;">dimension to 3 and change the input and output pixel type to signed short.</span></pre><pre><span style="color: rgb(0, 0, 0); font-family: arial; font-size: 14px; line-height: normal; "> The size of the images is 256x256x160.</span><span style="line-height: normal; "> But I found that it takes me about 60 minutes to register a pair of 3D images.And I think</span></pre><pre><span style="line-height: normal; "> it's </span><span style="line-height: normal;">time-consuming.</span><span style="line-height: normal; ">And my computer is Intel I3-2350M dual core CPU@2.30GHZ, and 4GB DDR3 RAM.</span></pre><pre><span style="line-height: normal;">Is the cost of time normal?</span></pre><pre><pre style="color: rgb(0, 0, 0); font-family: arial; font-size: 14px; line-height: normal; ">Please excuse me if this seems trivial. I am a very much a newbie to the image registration world :)
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</i><i> Thanks,</i></pre><pre style="color: rgb(0, 0, 0); font-family: arial; font-size: 14px; line-height: normal; "><i> xiav</i></pre><span style="line-height: 1.7;">
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