On Projection Matrices and their Applications in Computer Vision.
Lior Wolf, Amnon Shashua · 2001
Projection matrices from projective spaces # # to # # have long been used in multiple-view geometry to model the perspective projection created by the pin-hole camera. In this work we introduce higher-dimensional mappings # # ## # # , # ### ## ## # for the representation of various applications in which the world we view is no longer rigid. We also describe the multi-view constraints from these new projection matrices (where ###) and methods for extracting the (non-rigid) structure and motion for each application. 1