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If not the kind that aerial surveys create, then what orthography are you even working on? And what's keeping you from fusing the video frames with IMU (and, i
by namibj 2y ago
If not the kind that aerial surveys create, then what orthography are you even working on?
And what's keeping you from fusing the video frames with IMU (and, if available, GNSS) data?
- collingreen 2y agoI was trying to reconstruct multi-position "panoramas" from video recorded on a phone as someone walks - like getting one big photo of a street (but I'm inside essentially mapping walls). This 2011 talk has some good examples although they benefit from being relatively far away so standard feature detection like SIFT and ORB can do the job well. http://graphics.cs.cmu.edu/courses/15-463/2011_fall/Lectures/MultiPerspective.pdf http://graphics.cs.cmu.edu/courses/15-463/2011_fall/Lectures... Most phones have an accelerometer and other sensors so I'm exploring if those can be used to determine the phone's movement between frames accurately enough to help me stitch it back together. When relatively close to the subject the perspective changes so quickly that matching detected features with something like RANSAC really struggles. I'd voraciously consume any good links you have; I'm happily over my head on this and learning/iterating at every turn. I think I've accidentally given myself a relatively hard problem because of the constraints.