Image analysis – Image compression or coding
Reexamination Certificate
2005-11-02
2009-08-04
Do, Anh Hong (Department: 2624)
Image analysis
Image compression or coding
C382S243000, C382S312000, C382S318000
Reexamination Certificate
active
07570821
ABSTRACT:
An image coding technique capable of realizing a high speed coding processing for a mixed image with less a visual distortion. The image coding apparatus includes: plural scan units3each having a scan apparatus7scanning an original image to be encoded according to a prescribed scan sequence and piecewidth linear approximation apparatus9dividing a one-dimensional original image generated by scanning the original image with the scan apparatus7into plural intervals so that an accumulated square error or a dispersion of pixel values in each interval is a prescribed threshold value or less to generate one-dimensional approximation image data obtained by approximation of pixel values by the average value of pixel values in the intervals, which correspond to each of plural scan sequences different from one another; and optimal scan selecting apparatus4comparing the numbers of intervals obtained by dividing of the piecewidth linear approximation apparatus9of the scan units3to thereby select one dimensional approximation image data having a minimum number of intervals.
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Office Action dated Nov. 16, 2007 from Japan Patent Office, issued in JP2003-411280 and its partial translation.
T. Mogi; “Compression of Natural and Synthetic Compound Image by Using Region Separation;”The Institute of Electronics, Information and Communication Engineers D-II; vol. J82-D-II; No. 7; Jul. 1999; pp. 1150-1160./Discussed in the specification.
Do Anh Hong
Edwards Angell Palmer & & Dodge LLP
Kitakyushu Foundation for the Advancement of Industry, Science a
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