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Object modeling is essential for the building of virtual worlds. Traditionally, creating a 3D model of an existing object relies on using standard CAD tools or manual pointing devices. This can be really hard to achieve, especially for objects of arbitrary shape. Therefore, automatic modeling methods, which operate on data obtained from range images or simple (video) camera images, have been put forward in the past few years. The resulting 3D models won't look realistic if only their geometrical aspect is taken into account; the appearance of an object is also important. Realistic appearance is obtained by assigning either a color or a subimage to each model mesh, leading to a colored respectively a texture-mapped object model. Of these two models, the texture-mapped model is generally preferred because it permits high appearance resolution also in presence of a simple, coarse geometric grid.
This work deals with the problem of realistic 3D object modeling and It adds color and texture capabilities to the digitizing system presented in the work on free-form 3D object digitizing.
A new reconstruction method from range images that applies to textured views is presented. Advantages compared to other approaches are the capability to handle textured views and the lower complexity of object reconstruction. The model is created iteratively, each new view being added to the partial model until completion. The process can be divided into three steps: view acquisition, registration of the new view with the partial model, and fusion of both meshes. The considered extension mainly concerns two parts: first, color digitizing must be taken into account in the acquisition process to create textured views. Second, texture integration must be implemented into the mesh fusion step.
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geometric model
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texture image
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final textured model
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Timothée Jost, Christian Schütz & Heinz Hugli, "Modeling 3D Textured Objects by Fusion of Multiple Views", Proc. EUSIPCO, pp. 1073-1076, Sept 1998
Timothée Jost, Christian Schütz & Heinz Hugli, " Color digitizing and modeling of free-form 3D Objects", SPIE Electronic Imaging '99, SPIE Vol. 3640, pp. 38-48, Jan 1999
C. Schütz, T. Jost and H. Hügli, "Semi-Automatic 3D Object Digitizing System Using Range Images", Proc. ACCV'98, Hong-Kong, pp. 490-497, Jan 1998
C. Schütz, T. Jost & H. Hügli, "Numérisation d'objets tridimensionnels", magazine MSM, 12/98, pp. 20-21
H. Hügli & T. Jost, "Digitalisation et modélisation d'objets 3D colorés", Numérisation 3D-Scanning 2000, Actes du congrès, Paris, 24-25 mai 2000
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