Method of processing, and corresponding filtering device

Image analysis – Image enhancement or restoration – Image filter

Reexamination Certificate

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Details

C382S199000, C382S205000, C382S261000, C382S268000, C348S606000, C348S607000, C348S625000, C358S463000

Reexamination Certificate

active

06999630

ABSTRACT:
The invention relates to a method of processing data, which may be pixels (P[i,j]) representing a sequence of pictures, previously encoded and decoded. The method comprises at least in series a first step (ED) of detecting edge pixels within a picture, followed by a subsequent step (TEST) in which a choice is made from the pixels not detected as edges in the previous step, as to whether these pixels are to be filtered or not. Then, the method comprises a filtering step (SAF) which consists in replacing at least a pixel to be filtered with a pixel belonging to a close neighborhood of said pixel, said close neighborhood comprising said pixel and pixels adjacent to said pixel.

REFERENCES:
patent: 4642813 (1987-02-01), Wilder
patent: 5379074 (1995-01-01), Hwang
patent: 5473384 (1995-12-01), Jayant et al.
patent: 5850294 (1998-12-01), Apostolopoulos et al.
patent: 5852475 (1998-12-01), Gupta et al.
patent: 5999639 (1999-12-01), Rogers et al.
patent: 6192153 (2001-02-01), Suzuki et al.
patent: 6229578 (2001-05-01), Acharya et al.
patent: 6343158 (2002-01-01), Shiohara
patent: 6438270 (2002-08-01), Harrington
patent: 6539125 (2003-03-01), Harrington
patent: 6603877 (2003-08-01), Bishop
patent: 6901170 (2005-05-01), Terada et al.
patent: 0401077 (1990-12-01), None
patent: 0878776 (1998-11-01), None
patent: 2321816 (1998-08-01), None
patent: 2322252 (1998-08-01), None
patent: 2323235 (1998-09-01), None
Lee et al., “Blocking Effect Reduction of JPEG Images by Signal Adaptive Filtering.” Feb. 1998, IEEE Transactions on Image Processing, vol. 7, No. 2, pp 229-234.
Baxes, Gregory A., Digital Image Processing: principles and applications, 1994, John Wiley & Sons, p. 365.
Hyun Wook Park et al, “A Postprocessing Method for Reducing Quantization Effects Inn Low Bit-Rate Moving Picture Coding”, IEEE Transactions on CSVT, vol. 9, No. 1, Feb. 1999, pp. 161-171.

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