Offset between two consecutive projections

I have images as follows:


I would like to perform offset tracking over entire region.

I am facing problem bet ween operators : “Coregistration, offset and Mosaic”

  1. If I do mosaic first, TC product can not be given input to the offset
  2. If I do Coregistration, offset and Mosaic at last, there is a border noise in offset/ shift in the images.

Is there any possibility to mosaic in slant range?

How can I over come this issue. Could some one help me in this regard.