Recognition and Structure from one 2D Model View: Observations on Prototypes, Object Classes and Symmetries

  • Authors:
  • Tomaso Poggio;Thomas Vetter

  • Affiliations:
  • -;-

  • Venue:
  • Recognition and Structure from one 2D Model View: Observations on Prototypes, Object Classes and Symmetries
  • Year:
  • 1992

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Abstract

In this note we discuss how recognition can be achieved from a single 2D model view exploiting prior knowledge of an object''s structure (e.g. symmetry). We prove that for any bilaterally symmetric 3D object one non- accidental 2D model view is sufficient for recognition. Symmetries of higher order allow the recovery of structure from one 2D view. Linear transformations can be learned exactly from a small set of examples in the case of "linear object classes" and used to produce new views of an object from a single view.