<div><br></div>Hi all,<div><br></div><div>I have browsed the classes of itk 3.16 to get some information about the variants of the demons registration. I have found these:</div><div><br></div><div>1, itkDemonsRegistrationFilter: this is the one algorithm by Thirion: <span class="Apple-style-span" style="font-family: Geneva, Arial, Helvetica, sans-serif; font-size: 14px; ">"Image matching as a Diffusion Process: and Analogy with Maxwell's Demons"</span></div>
<div>2, itkPointSetToSpatialObjectDemonsRegistration: this is another algorithm by Thirion</div><div>3, itkDiffeomorphicDemonsRegistrationFilter: it is presented by Vercauteren (<span class="Apple-style-span" style="font-family: Geneva, Arial, Helvetica, sans-serif; font-size: 14px; "><a href="http://hdl.handle.net/1926/510" style="color: rgb(42, 55, 152); ">http://hdl.handle.net/1926/510</a><span class="Apple-style-span" style="font-family: arial; font-size: small; ">) Algorithm 3 should be this one.</span></span></div>
<div><span class="Apple-style-span" style="font-family: Geneva, Arial, Helvetica, sans-serif; font-size: 14px; "><span class="Apple-style-span" style="font-family: arial; font-size: small; ">4, itkFastSymmetricForcesDemonsRegistrationFilter: it is also presented by Vercauteren (<span class="Apple-style-span" style="font-family: Geneva, Arial, Helvetica, sans-serif; font-size: 14px; "><a href="http://hdl.handle.net/1926/510" style="color: rgb(42, 55, 152); ">http://hdl.handle.net/1926/510</a><span class="Apple-style-span" style="font-family: arial; font-size: small; ">) Algorithm 2 should be this one.</span></span></span></span></div>
<div><span class="Apple-style-span" style="font-family: Geneva, Arial, Helvetica, sans-serif; font-size: 14px; "><span class="Apple-style-span" style="font-family: arial; font-size: small; "><span class="Apple-style-span" style="font-family: Geneva, Arial, Helvetica, sans-serif; font-size: 14px; "><span class="Apple-style-span" style="font-family: arial; font-size: small; ">5, itkSymmetricForcesDemonsRegistrationFilter: There is no additional info in the description. Has not been this implementation published somewhere? All I know that it uses both the moving image gradient and the fixed image gradient, and it is approximately 3 times slower than itkDemonsRegistrationFilter. Can you tell me more about this filter?</span></span></span></span></div>
<div><span class="Apple-style-span" style="font-family: Geneva, Arial, Helvetica, sans-serif; font-size: 14px; "><span class="Apple-style-span" style="font-family: arial; font-size: small; "><span class="Apple-style-span" style="font-family: Geneva, Arial, Helvetica, sans-serif; font-size: 14px; "><span class="Apple-style-span" style="font-family: arial; font-size: small; "><br>
</span></span></span></span></div><div><span class="Apple-style-span" style="font-family: Geneva, Arial, Helvetica, sans-serif; font-size: 14px; "><span class="Apple-style-span" style="font-family: arial; font-size: small; "><span class="Apple-style-span" style="font-family: Geneva, Arial, Helvetica, sans-serif; font-size: 14px; "><span class="Apple-style-span" style="font-family: arial; font-size: small; ">PS: I know about other variants such as log-domain diffeomorphic demons and symmetric log-domain diffeomorphic demons, but these are too much for once.</span></span></span></span></div>
<div><br>-- <br>Zoli<br>
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