Method and apparatus for compressing image signals

Details Method and apparatus for compressing image signals Method and apparatus for compressing image signals

1993-10-15

2000-04-18

Bella, Matthew

Image analysis

Image compression or coding

Adaptive coding

382232, 382128, 358430, G06K 900, G06K 936

Patent

active

060524871

ABSTRACT:
When an image signal representing a radiation image is compressed and decompressed, and a visible radiation image is reproduced from the decompressed image signal, a compressing process to be employed is changed in accordance with conditions, under which the image signal before being subjected to compression processing has been generated. A moire is thereby prevented from occurring on a reproduced radiation image, the compression processing speed and the compressibility are kept high, and the image quality (the sharpness) of the reproduced radiation image is prevented from becoming worse.

REFERENCES:
patent: 4258264 (1981-03-01), Kotera et al.
patent: 4568973 (1986-02-01), Ishida
patent: 4941194 (1990-07-01), Shimura
patent: 5006708 (1991-04-01), Itoh et al.
patent: 5028784 (1991-07-01), Arakawa et al.
patent: 5086489 (1992-02-01), Shimura

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