On Nov 7, 3:00 pm, cneller wrote:
> I'm looking at creating some spatial registration objects. I think I
> understand everything in the standard, and can use DVTk to validate
> the objects created, but there are few examples and free viewers that
> support such objects. I'd like some independent verification of the
> objects or examples of others to make sure they are useful.

Did you post those files somewhere ?

Thanks

On Nov 7, 8:03*am, Mathieu Malaterre
wrote:
> Did you post those files somewhere ?


I have not even fully created them, but I'm looking for examples or
viewers so that I could compare/verify. Do you know of any?

-C

A related question about REG objects:

In the registration sequence, it requires either the referenced image
sequence or the FoR UID (or both). Are there any rules defined in
DICOM or IHE that I'm missing that explain what happens when an object
has both FoR UIDs and referenced image sequences? Does the existence
of one override the other? Does one matrix get applied first? Or does
DICOM not specify?

IHE does recommend creating copies of images to be registered and
giving them a separate FoR UID from the original. This is a little
cumbersome, but at least explicit.

I'm curious if there is an expected behavior if, for instance, a REG
object exists with a registration sequence item containing a FoR UID
for image A; then another (different matrix) item containing the SOP
instance for image A in the referenced image sequence. Which matrix
should get applied or should both, but in what order?

many thanks,
-C