[Insight-developers] Problem about LevelSetMotionRegistrationFunction

[Siwei Yang]

Hello all,
I want to use the Levelsetmotionregistrationfilter, but in the 
ComputeUpdate (LevelsetmotionregistrationFunction) I fand something 
doesn't seems to be comprehensible.  According to equation 27 in the 
paper of (B.C. Vemuri, J. Ye, Y. Chen, C.M. Leonard. "Image registration 
via level-set motion: applications to atlas-based segmentation". Medical 
Image Analysis. Vol. 7. pp. 1-20. 2003.), the speed term should be     
I2(ij) -I1(i-u.., j-v..)    instead of  I2(ij)-I1(ij), which is in the 
implementation.    I' m not sure, if what I say is correct . Perhaps 
some one can give me a good answer.

Thanks
best wishes

Siwei Yang
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