3D Region of Interest

Posted by BirthingXS on Nov 29, 2016; 10:45am
URL: http://imagej.273.s1.nabble.com/3D-Region-of-Interest-tp5017648.html

Hi all,

I'm trying to do some 3D clustering analysis described below, and was wondering if anyone has ideas how it can be done:

1. Counting 3D clusters in an image using '3D Object Counter'.
2. Import the results into 3D Roi Manager, selecting all the objects which places a Roi around each cluster.
3. The Roi is then enlarged by a set number of pixels to incorporate some of the neighboring clusters as a single cluster.
4. The question is: Is there a way to see which of the original clusters have been included in to the new clusters?

Edit: Another problem is the calculation of NND in 3D. The Distances function in 3D Roi manager computes the distances between selected pairs of objects. However, with a sizable number of objects, this simply takes too long. Is there an option to measure only the closest neighbors instead of all the distances?

Thanks in advance.

XS