Browsing AI Memos (1959 - 2004) by Author "Vetter, Thomas"
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3D Object Recognition: Symmetry and Virtual Views
Vetter, Thomas; Poggio, Tomaso; B'ulthoff, Heinrich (1992-12-01)Many 3D objects in the world around us are strongly constrained. For instance, not only cultural artifacts but also many natural objects are bilaterally symmetric. Thoretical arguments suggest and psychophysical ... -
Linear Object Classes and Image Synthesis from a Single Example Image
Vetter, Thomas; Poggio, Tomaso (1995-03-01)The need to generate new views of a 3D object from a single real image arises in several fields, including graphics and object recognition. While the traditional approach relies on the use of 3D models, we have recently ... -
Recognition and Structure from One 2D Model View: Observations on Prototypes, Object Classes and Symmetries
Poggio, Tomaso; Vetter, Thomas (1992-02-01)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- ... -
View-Based Models of 3D Object Recognition and Class-Specific Invariances
Logothetis, Nikos K.; Vetter, Thomas; Hurlbert, Anya; Poggio, Tomaso (1994-04-01)This paper describes the main features of a view-based model of object recognition. The model tries to capture general properties to be expected in a biological architecture for object recognition. The basic module is a ...