Filter device, filtering method and filtering program product

Details Filter device, filtering method and filtering program product Filter device, filtering method and filtering program product

2004-08-26

2009-12-22

Kim, Charles (Department: 2624)

Image analysis

Image enhancement or restoration

Intensity, brightness, contrast, or shading correction

C382S261000, C382S271000

Reexamination Certificate

active

07636493

ABSTRACT:
A filter device includes a vertical NR process portion, a vertical resolution conversion portion and a vertical NR process decision portion. The vertical NR process portion receives a horizontal NR processed signal and produces an NR processed signal. The vertical resolution conversion portion includes a plurality of resolution conversion filters and uses the NR processed signal to perform a vertical resolution conversion. The vertical NR process decision portion decides whether or not the vertical NR process portion should perform the vertical NR process on the horizontal NR processed signal in accordance with a resolution conversion filter selection signal for selecting one of plurality of resolution conversion filters for the vertical resolution conversion portion.

REFERENCES:
patent: 6002447 (1999-12-01), Rumreich et al.
patent: 6172770 (2001-01-01), Inoue
patent: 6272260 (2001-08-01), Furukawa et al.
patent: 6415065 (2002-07-01), Miyake
patent: 6493467 (2002-12-01), Okuda et al.
International Standard ISO/IEC 14496-2, Information Technology—Coding of Audio-Visual Object Part 2: Visual Second Edition, Dec. 1, 2001, pp. 448-452.

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