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Structure from Motion Arrowsmith, Nissen, Saripalli

Structure from Motion Arrowsmith, Nissen, Saripalli. http://robotics.asu.edu/. Littlerock Motorized kite (watch out for the wind!). $600 for kite. Main differences are datum offset (~30 m) and positioning (using camera GPS). SFM-B4 difference.

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Structure from Motion Arrowsmith, Nissen, Saripalli

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  1. Structure from Motion Arrowsmith, Nissen, Saripalli http://robotics.asu.edu/

  2. Littlerock Motorized kite (watch out for the wind!) $600 for kite

  3. Main differences are datum offset (~30 m) and positioning (using camera GPS) SFM-B4 difference

  4. Mulitview stereo and structure from motion applied to volcanic bomb, coastal cliff erosion, volcano caldera

  5. Structure From Motion Procedure

  6. Structure from Motion • Calibrate Camera (“performed with the same images”) • Take pictures which have some overlap • Find points which are same in both images • Determine how these points have changed between images • Create a Digital Surface Model and 'drape' the images over the model (Texture Map) • Software = AGISOFT PHOTOSCAN (<$3500)

  7. Unmanned Aerial Vehicles also kites, balloons

  8. Structure from motion using balloon aerial photography with Sri Saripalli $500 balloon plus gear

  9. Lofting on He balloon Canon camera with GPS tagging and 2 second interval shooting Can lift a few kg

  10. Solve for 6 camera positions (examples)

  11. Example 6 image DEM =16 pixels / m = ~25 cm dem

  12. Structure from motion orthophoto texturemap (also can generate <10 cm DEM) Click to start video

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