Title:
DIGITAL IMAGE REPLENISHMENT METHOD, IMAGE PROCESSING DEVICE AND DATA RECORDING MEDIUM
Document Type and Number:
WIPO Patent Application WO/1998/034407
Kind Code:
A1
Abstract:
A digital image replenishment method, wherein the steps of extracting a pixel in an original image space (301) corresponding to a digital image signal inputted, as illustrated in the Fig., at every other pixel in the horizontal direction and at every other pixel in the vertical direction, sequencing a plurality of extracted pixels to form four small pixel spaces (401 to 404) and applying the replenishment processing of a pixel value to the small image spaces are included. In the digital image replenishment method of such constitution, the replenishment processing of a pixel value is not applied to an original image space having the low correlation of a pixel value between adjacent scanning lines, but to a plurality of small image spaces having the high correlation of a pixel value between the adjacent scanning lines. In other words, the small image spaces to which the replenishment processing is applied have the high correlation of the above-mentioned pixel value. For that reason, for instance, it can be avoided that a high-frequency component is introduced into a digital image signal corresponding to an interlace image by the replenishment processing in the interlace image of the large movement of an object, and accordingly, there is an effect that a difference coding processing or a differential decoding processing for an interlace image and the like can be performed with high coding efficiency while suppressing its degradation due to the replenishment processing.
Inventors:
BOON CHOONG SENG (JP)
Application Number:
PCT/JP1998/000312
Publication Date:
August 06, 1998
Filing Date:
January 27, 1998
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD (JP)
BOON CHOONG SENG (JP)
BOON CHOONG SENG (JP)
International Classes:
G06T9/00; H04N7/26; H04N7/50; (IPC1-7): H04N7/52
Foreign References:
| JPH05284535A | 1993-10-29 | |||
| JPH0389792A | 1991-04-15 |
Other References:
See also references of EP 0907290A4
Attorney, Agent or Firm:
Hayase, Kenichi (17-1 Enokich, Suita-shi Osaka 564, JP)
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