hugin-devs team mailing list archive

[Yuv <679753@xxxxxxxxxxxxxxxxxx>]

On January 13, 2011 02:43:59 am Vladimir Nadvornik wrote:
> And here is an example of use:
> 
> align_image_stack -a "aligned" -i -P -C left.jpg right.jpg
> composite -stereo 0 aligned0000.tif aligned0001.tif anaglyph.jpg

Hi Vladimir

thank you for your contribution.  do I understand correctly that your patches 
add new options to align_image_stack without changing the existing behavior / 
options?

I don't have much time to test other than that it does not break the build; 
and I do not have a set of stereo images to try anyway.  But if you tell me 
that the patch does not change existing functionality to existing users, we 
can get it into the default codeline where it will get more exposure / 
testing.

Yuv

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https://bugs.launchpad.net/bugs/679753

Title:
  Stereo images alignment

Status in Hugin - Panorama Tools GUI:
  Triaged

Bug description:
  Hi,
  I tried to use align-image-stack for processing stereo images (taken from slightly different angle). Here are the modifications that I did:

  1. Two-phase control point matching - the patch adds second phase,
  where the points are fine-tuned on full-size image. This gives better
  results with comparable speed.

  2. stereo mode - the points are optimized only for Y (horizontal
  line). Horizontal shift of the control points is allowed. One vertical
  line is added to anchor the horizontal shift of the images. The patch
  also adds options to optimize distortion and image center shift.

  3. extra control points around the image edges - in stereo mode the image edges are interesting for "stereo window" alignment. The normal method generated too few control points near the edges. This patch forces additional points, which are then filtered by correlation and geometric pruning.
  I want to work on automatic "stereo window" alignment in the future.