3D graphics object copying with reduced edge artifacts

Details 3D graphics object copying with reduced edge artifacts 3D graphics object copying with reduced edge artifacts

1997-07-28

2000-03-14

Powell, Mark R.

Facsimile and static presentation processing

Static presentation processing

Detail of image placement or content

382109, 382141, 382264, 382269, 382154, 382285, 358448, 345136, 345137, 345138, 345429, 345431, 345432, H04N 140

Patent

active

060380314

ABSTRACT:
A system and method for performing 3D graphics copying operations in such a manner as to produce both a smooth image and smooth edges. The alpha value of each pixel is used to mark the pixels which are and are not part of the image to be copied, and removes unwanted pixels from bilinear filtering operations. After filtering, the resultant alpha values along the edges of the object are used to eliminate unwanted pixels, and to blend the object into the background of the image, which reduces or eliminates the "blocky" edges.

REFERENCES:
patent: 4903141 (1990-02-01), Morton et al.
patent: 5351067 (1994-09-01), Lumelsky et al.
patent: 5526255 (1996-06-01), Shenk
patent: 5594854 (1997-01-01), Baldwin et al.
patent: 5825936 (1998-10-01), Clarke et al.

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