Image Stitching loop closure

Question

I have written an OpenCV program for stitching aerial images in c++, this is done by calculation the Homography of these images, and warping the 'tobe' stitched image to the original image.

This stitching process is done by calculating the feature points in these images using SIFT or SURF feature detector, extractors.

The process of how I stitch multiple images are accomplished by finding feature points iteratively, image1(scaled to the warp of image2) + image 2(warped) = imageStitch(combined/stitched); (result from above)ImageStitch + image3 = imageStitch and so on !

I want to know the ways or methods to detect "LOOP CLOSURE" by knowing image feature points.

I hope this is clear Thanks you for your reply

Please provide a better explanation. – Andrey Rubshtein Sep 10 '12 at 14:48 — Andrey Rubshtein, Sep 10 '12 at 14:48

score 0 · Answer 1 · answered Sep 10 '12 at 17:53

0

You cannot use the homography between the images to close a loop since the homography warps the image to a single plane.
You should use only the 2D rotation and 2D translation which would be equivalent to warping to the surface of a cylinder or sphere.

answered Sep 10 '12 at 17:53

Adi Shavit

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could you explain me more please, do u know a paper or step by step method ? you are quite vague – Mahika Sep 10 '12 at 19:44

Image Stitching loop closure

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