Title:
METHOD AND DEVICE FOR SUPPRESSING IMAGE DEGRADATION
Document Type and Number:
Japanese Patent JPH05199508
Kind Code:
A
Abstract:
PURPOSE: To improve the noise removing effect of a filter by removing unnecessary noise components generated with the compression of an interlace image and processing the filter after separating the image signal into respective fields.
CONSTITUTION: First of all, the reproduced image superimposed the noise component is divided into two fields by a field separator 81 of a filter processing part 14 and next, filters 82-1 and 82-2 execute noise removal processings to the respective fields. Finally, the images are synthesized by a field synthesizer 84 and outputted. Thus, small-amplitude and higher harmonic noise can be suppressed while holding small-amplitude texture without degrading an edge component in the image signal.
Inventors:
IWAHASHI MASAHIRO
Application Number:
JP2717692A
Publication Date:
August 06, 1993
Filing Date:
January 18, 1992
Export Citation:
Assignee:
G C TECHNOL KK
International Classes:
G06T5/00; H04N19/00; H04N19/80; H04N5/21; H04N19/85; (IPC1-7): G06F15/68; H04N5/21; H04N7/13
Domestic Patent References:
| JPH0465243A | 1992-03-02 | |||
| JPH01118438A | 1989-05-10 |
Attorney, Agent or Firm:
Kozo Uchida (1 person outside)