Image analysis – Image enhancement or restoration – Image filter
Reexamination Certificate
2005-07-26
2005-07-26
Boudreau, Leo (Department: 2621)
Image analysis
Image enhancement or restoration
Image filter
C382S275000
Reexamination Certificate
active
06922492
ABSTRACT:
Digital video imagery is deblocked as a function of horizontal and/or vertically oriented pixels that share a common attribute (such as a corresponding pixel value). In particular, a deblocking filter can be selected from amongst a plurality of candidate deblocking filters as a function of the presence of pixels that are both adjacent to one another and that are substantially similar to one another. The selected deblocking filter can be applied as a function, at least in part, of a respective center of the pixels that are both adjacent and similar to one another. In one embodiment, luminance information is deblocked pursuant to a process that is different from a deblocking process that is used with chrominance information.
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Yu Zhenghua
Zhang Jian
Motorola Inc.
Sherali Ishrat
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