A technique is introduced for 3-D surface reconstruction and graphic animation using elastic, deformable models. The basic structure used is an imaginary elastic grid, which is made of membranous, thin-plate type material. This elastic grid is bent, twisted, compressed, and stretched into any desirable 3-D shape, or from one flexible state to another. The desired shape can be specified by the shape constraints derived automatically from images of a real 3-D object, or by an analytic surface function. Shape reconstruction is guided by a set of imaginary springs that enforce the consistency in the position, orientation, and/or curvature measurements of the elastic grid and the desired shape. The dynamics of a reconstruction process is regulated by the Hamilton principle or the principle of the least action. Implementation results using simple analytic shapes and images of real free-form objects are presented. The authors believe that their model is widely applicable in many surface reconstruction and graphic animation processes.<>


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    Title :

    Surface reconstruction using deformable models with interior and boundary constraints


    Contributors:
    Wang, Y.F. (author) / Wang, J.-F. (author)


    Publication date :

    1990-01-01


    Size :

    428512 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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