Method and apparatus for scanning image data

Details Method and apparatus for scanning image data Method and apparatus for scanning image data

1993-02-01

1996-12-10

Vu, Kim Yen

Facsimile and static presentation processing

Facsimile

Auxiliary signal

358426, 358433, 348408, 348420, H04N 1415, H04N 712

Patent

active

055836577

ABSTRACT:
The present invention relates to a method of and an apparatus for scanning an N.times.N image signal in a particular direction depending upon an energy distribution of the two-dimensional data. The invention involves scanning image signal transform coefficients of an N.times.N block using a slope determined on the basis of the energy distribution pattern, the blocks being defined by transforming an input image signal of a time domain to signals of a frequency domain, compressing and transferring the scanned transform coefficients, restoring the compressed transform coefficient data and rearranging the restored coefficient data into original image data of N.times.N blocks by scanning them in conformance with the energy distribution pattern.

REFERENCES:
patent: 3478163 (1969-11-01), Chatelon
patent: 3636250 (1972-01-01), Haeff
patent: 3659950 (1972-05-01), Troll et al.
patent: 3993976 (1976-11-01), Ginsburg
patent: 4394774 (1983-07-01), Widergren et al.
patent: 4432019 (1984-02-01), Maier
patent: 4774574 (1988-09-01), Daly et al.
patent: 4831659 (1989-05-01), Miyaoka et al.
patent: 5162923 (1992-11-01), Yoshida et al.
patent: 5170264 (1992-12-01), Saito et al.
patent: 5189526 (1993-02-01), Sasson
patent: 5257107 (1993-10-01), Hwang et al.
patent: 5289548 (1994-02-01), Wilson et al.
patent: 5299239 (1994-05-01), Iwahashi et al.

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