Photo Tourism. Exploring Photo Collections in 3D. Introduction. The internet has become a vast, ever-growing repository of visual information about our world.
Exploring Photo Collections in 3D
Internet 2012 in numbers
Given optical flow or point correspondences, compute 3-D motion (translation and rotation) and shape (depth).
- point in the 3D world.
Rank of S is 3, because points in 3D space are not co-planar.
The registered measurement matrix is at most of rank three.
Because is a product of two matrices.
The maximum rank of S is 3
is diagonal, are orthogonal
Approximate Rotation Matrix.
Approximate Shape Matrix.