Surf and ransac

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Surf and ransac

  1. 1. An Image Stitching Algorithm Based On SURF And RANSAC Methods
  2. 2. Main Points •SURF algorithm •RANSAC method for obtaining a homography •Image blending process
  3. 3. Image Analysis Applications • Medicine (MRI scans) • Microscopy • Remote sensing (detecting intruders in a house, and producing land cover/land use maps) • Astronomy (calculating the size of a planet) • Materials science • Many others 
  4. 4. SURF Algorithm SURF finds interest points and builds their descriptors
  5. 5. After finding features they are matched between different images SURF Algorithm
  6. 6. RANdom SAmple Consensus Simple 2D example
  7. 7. RANSAC is used to obtain a homography to project a set of images onto one plane RANdom SAmple Consensus
  8. 8. Image Blending Now we just need to unite our images
  9. 9. Image Stitching •SURF algorithm finds image features •RANSAC obtains a projective transformation •Projected images blended into a single image
  10. 10. An image stitching algorithm on basis of SURF and RANSAC methods

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