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Opencv lowercase flat images

I am writing a program that stitches aerial photographs with real-time video using an unmanned aerial vehicle. In fact, I am doing this:

  • get two consecutive frames
  • find functions between these two frames
  • calculate homography
  • calculate the offset of images and stitch them together.

The problem is in the 3rd step, and therefore: both my code and the opencv line function compute a homography claiming that I have a rotation on some axis (because it is a panorama). Actually, the buzz acts like a “scanner”, so instead of turning it around, I have a camera translation. This affects my homography, and then my step, creating artifacts. Is there a way to consider translating the camera instead of rotating (for example, a spelling thing)? If this helps, I have built-in camera parameters calculated using the calibration guide

Ps: I am programming in C ++

EDIT I found this library written by Nasa http://ti.arc.nasa.gov/tech/asr/intelligent-robotics/nasa-vision-workbench/

can this help? Can i use its togheter with opencv?

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c ++ opencv panoramas image-stitching
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