Method for line average differences based de-interlacing

Details Method for line average differences based de-interlacing Method for line average differences based de-interlacing

2007-05-08

2007-05-08

Lee, Michael H. (Department: 2622)

Television

Format conversion

Line doublers type

C348S458000

Reexamination Certificate

active

10865922

ABSTRACT:
A method for line average de-interlacing decodes a picture to form macro blocks (MBs), calculates line average values to form a threshold, produces de-interlacing flags by comparing the line average values and the threshold, realizes Temporal Extension action and performs Devour action. The Temporal Extension action determines if the current de-interlace flag is set as WEAVE, determines if the flags in the same position in other flag buffers are set as BOB and sets the de-interlace flags as BOB2. The Devour action determines if the de-interlace flag is BOB. If positive, it calculates the amount of BOB data within a predetermined area around the current MB, determines if the result is smaller than the BOB threshold and sets the de-interlace flag as WEAVE. Otherwise, it calculates the amount of the WEAVE data, determines if the result is smaller than the WEAVE threshold and sets the de-interlace flag as BOB2.

REFERENCES:
patent: 6269484 (2001-07-01), Simsic et al.
patent: 6348949 (2002-02-01), McVeigh
patent: 6788312 (2004-09-01), Azar et al.
patent: 7057665 (2006-06-01), Jung et al.

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