Relative affine structure: canonical model for 3D from 2D geometry and applications

A. Shashua, N. Navab
1996 IEEE Transactions on Pattern Analysis and Machine Intelligence  
We propose an affine framework for perspective views, captured by a single extremely simple equation based on a viewer-centered invariant we call relative affine structure. Via a number of corollaries of our main results we show that our framework unifies previous work-including Euclidean, projective and affine-in a natural and simple way, and introduces new, extremely simple, algorithms for the tasks of reconstruction from multiple views, recognition by alignment, and certain image coding
more » ... n image coding applications. Index Terms-Structure from motion, visual recognition, alignment, reprojection, projective reometry, algebraic and geometric invariants. 0162-6828/96$05.00 01996 IEEE
doi:10.1109/34.537342 fatcat:mdr6zsisdrao5ah33ceisqg6aa