Which transformation is used here?

iwyoo / DIRNet-tensorflow

Tensorflow implementation of DIRNet

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Which transformation is used here? #2

Open adrianloy opened 6 years ago

adrianloy commented 6 years ago

Hi, Just a short question: Which transformation is implemented in this DIRnet? Is it a cubic B spline transformation as described in "Nonrigid Registration Using Free-Form Deformations: Application to Breast MR Images" (Section II B) and mentioned in the original DIRnet paper?

Thanks in advance, and nice code! Cheers

iwyoo commented 6 years ago

Actually, I used a simple bicubic interpolation on vector control points. I'm not sure it is same with cubic B-spline. You can check https://github.com/iwyoo/bicubic_interp-tensorflow and https://blog.demofox.org/2015/08/15/resizing-images-with-bicubic-interpolation/.

o0t1ng0o commented 5 years ago

Hi, @adrianloy

Did you figure out whether the transformation is cubic B spline transformation?

Many thanks!