Refined quadrilinear interpolation
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United States of America Patent
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-
Jan 1, 2008
Grant Date -
Aug 5, 2004
app pub date -
May 21, 2002
filing date -
May 22, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of concealing error within a surface delimited by edges and containing points with which erroneous values are associated. A new value is interpolated for at least one point on the surface from interpolation points defined in a projection step by the projections in orthogonal directions of the point to be interpolated onto the edges of the surface. Primary distances are determined between the point to be interpolated and the interpolation points. The sums of the primary distances in each of the directions are calculated, the sums being called secondary distances. The interpolation step provides for determination of the new value of a point to be interpolated from the values associated with the respective interpolation points weighted by weights calculated according to the respective primary distances and second distances.
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