Method and apparatus for unevenly encoding error images

Details Method and apparatus for unevenly encoding error images Method and apparatus for unevenly encoding error images

1993-05-28

1994-09-13

Chin, Tommy P.

Television

Bandwidth reduction system

Data rate reduction

348420, H04N 7137

Patent

active

053473116

ABSTRACT:
A method and apparatus for partially encoding an image. The image is divided into a plurality of blocks and one block is selected for processing. A boundary lying along the selected block that is associated with a discontinuity is also selected. The errors associated with the selected block are reduced unevenly by a reduction factor that increases the degree to which the errors are reduced as the distance between the errors and the boundary increases. The selected block is encoded in accordance with the reduced errors.

REFERENCES:
patent: 4727422 (1988-02-01), Hinman
patent: 5134478 (1992-07-01), Golin
patent: 5226093 (1993-07-01), Iwase
patent: 5247586 (1993-09-01), Gobert et al.
patent: 5293230 (1994-03-01), Golin

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