CellProfiler/CellProfiler — Issue #87: JIRA [IMG-1360] Rotational alignment using cross-correlation
Author: thouis
Created: 2011-11-23 20:50:00+00:00
State: open
Labels: current

The Align module should be capable of rotational alignment using cross-correlation. I think the proper procedure is to do a cross-correlation translational alignment first so that they can then be compared solely for rotation. The image is then transformed so that one axis is the radial distance from the image center to a pixel and the other is the angle of that pixel wrt the horizontal, then the two transformed images are cross-correlated to yield the angular"displacement".
This should work for cases where the rotation is small enough that there is a reasonable amount of translational correlation.

Original reporter: leek
Jira link: https://jira.broadinstitute.org/browse/IMG-1360
Fix version: Current
Assignee: leek