Quote:
Originally Posted by RobF
Very impressive Burt. A true roadmap for the area.
How do you do your mosaic intergration - with Registar? Does it cope ok with the curvature for such huge FOVs?
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That is a very good question Rob.
The problem of course is we are trying to map a spherical surface onto a flat one. Distortions will occurr.
I use Registar and as a start I register the left hand side three images starting with the centre image as reference image. I then calibrate the two top and bottom images to the centre image. Same procedure for the RHS.
I then use PS to rotate and crop so we have straight edges for the LHS and RHS where they overlap.
Registar is then used to align and calibrate these two images to produce the final mosaic.
We are not done yet as you can see from the map in the third post. There is noticeable curvature when the image is registered with a map from Star Atlas Pro.
I recently bought Starry Night Pro and have found that the projections match quite well with Star atlas Pro. See first image below.
I used an upsized image from SNP as a reference to bring the mosaic image back into a more rectilinear projection.
The 300mm F2.8L Canon lens I use is rectilinear to better than 1% ie very tiny barrel or pincushion distortion. It is still projecting a spherical surface onto a flat one.
The second picture shows SNP as the starting image with SAP and the final mosaic.
Here is the much better corrected version of the mosaic 14MB
http://d1355990.i49.quadrahosting.co.../CM_rect_M.jpg
Bert