“A montage method: the overlaying of the computer generated images onto a background photograph” by Nakamae, Harada, Ishizaki and Nishita

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    A montage method: the overlaying of the computer generated images onto a background photograph

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Abstract:


    A system of computer programs has been established to generate high quality montage image of considerable usefulness in architectural simulation which combine computer-generated images and photographed background pictures.Traditionally, there are two methods of creating architectural montages: (1) an artist paints new buildings onto a background scene usually generated photographically, and (2) a three-dimensional scale model is created to simulate the whole landscape, and this model is then photographed. The montage method described here combines aspects of both traditional montage methods with significant improvement in accuracy and reduction of time and cost of preparation. Specifically, a digitized photograph is used as a background scene onto which is superimposed a 3D computer-generated image of a new building. The outstanding points of the new method are:(i) The shading and shadows of each computer generated image are calculated with higher accuracy, (ii) the fog effect is taken into account, and (iii) a new anti-aliasing technique improves the quality of the final montage image.

References:


    1. S.Uno and H.Matsuka,”A General Purpose Graphic System for Computer Aided Design,” Computer Graphics, voi.13, no.2,1979, pp.25-32
    2. E.A.Feibush, M.Leroy and R.L.Cook,”Synthetic Texturing Using Digital Filters,” Computer Graphics, voi.14, no.3, 1980, pp.294-301
    3. T.Porter and T.Duff,”Composing Digital Images,” Computer Graphics, voi. 18, no.3,1984, pp.253-259
    4. T.Nishita and E.Nakamae,”A Perspective Depiction of Shaded Time,” Proe. of 4th Int. Syrup. on the Use of Comp. for Env. Eng. Related to Build.,1983, pp.565
    5. B.J. Sohachter, Computer Image Generation, John Wiley & Sons.,New York, 1983
    6. de Boor,Practical Guide to Splines, Springer- Verlag, New York, 1978
    7. R.Marshall, R.Wilson and W. Carlson,”Procedure Models for Generating Three-Dimensional Terrain,” Computer Graphics, voi.14, no.3,1980, pp. 154-162
    8. T.W.Maver, C. Purdie and D. Stearn,” Visual Impact Analysis — Modelling and Viewing the Natural and Built Environment,” Comput. & Graphics, vol.9, no.2, 1985, pp.117-124


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