Important: Do not apply Refine Registration to studies containing non-volumetric datasets. The registration algorithm is designed to use on volumetric datasets only. For more information about volume rendered images, see Using Volume Rendering.
NOTE: If Refine Registration is inactive, you must perform a global level registration. Perform the steps for Register Studies first, and then apply Refine Registration.
Refine Registration is best for matching two volumes based on local similarities, rather than global similarities. You must apply global registration before you apply Refine Registration.
Use Refine Registration when you need to focus on specific regions of each study. After you register the studies using Refine Registration, you can better compare the specific regions in the studies.
Refine Registration adjusts the registration algorithm result. The adjusted values will improve the local registration results, but the global registration results might become worse.
1. Display two or more studies containing volumetric datasets.
2. Use Register Studies to apply global level registration.
3. Create a Relate Point for each study. See Creating a Relate Point on a Volume Rendered Image.
4. Move each relate point to the desired specific location on each study.
5. Initiate Refine Registration.
The position of the relate points are factored into the registration algorithm.
Refine Registration matches the local volumes and maps the relevant pixels in each study.
See these topics:
to view the drop-down menu.
to run the algorithm.