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    Applying Rounding-Up Integral Linear Interpolation to the Scan-Conversion of Filled Polygons

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    Date
    1997
    Author
    Yao, Chengfu
    Rokne, Jon G.
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    Abstract
    This paper is motivated by a special linear interpolation problem encountered in scan-line algorithms for scan-conversion of filled polygons. rounding-up integral linear interpolation is defined and its efficient computation is discussed. The paper then incorporates rounding-up integral linear interpolation into a scan-line algorithm for filled polygons, and it discusses the implementation of the algorithm. This approach has the advantage of only requiring integer arithmetic in the calculations. Furthermore, the approach provides a unified treatment for calculating span extrema for left and right edges of the polygon that guarantees the mutual exclusiveness of the ownership of boundary pixels of two filled polygons sharing an edge.
    BibTeX
    @article {10.1111:1467-8659.00126,
    journal = {Computer Graphics Forum},
    title = {{Applying Rounding-Up Integral Linear Interpolation to the Scan-Conversion of Filled Polygons}},
    author = {Yao, Chengfu and Rokne, Jon G.},
    year = {1997},
    publisher = {Blackwell Publishers Ltd and the Eurographics Association},
    ISSN = {1467-8659},
    DOI = {10.1111/1467-8659.00126}
    }
    URI
    http://dx.doi.org/10.1111/1467-8659.00126
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