Method and apparatus for representing an image by iteratively sy

Details Method and apparatus for representing an image by iteratively sy Method and apparatus for representing an image by iteratively sy

1993-01-04

1996-12-10

Boudreau, Leo

Image analysis

Image compression or coding

Including details of decompression

382240, 358426, 358430, 36472406, 36472408, G06K 940

Patent

active

055839525

ABSTRACT:
An apparatus for decompressing an image that has been compressed by an image compression system in which the image is first repetitively filtered in one direction to produce a series of sub-images which are then repetitively filtered in a second direction to produce an image representation having a plurality of sub-images in which each sub-image has a different spatial frequency content is disclosed. The decompression apparatus reverses the filtering process to recover the original image.

REFERENCES:
patent: 4777620 (1988-10-01), Shimoni et al.
patent: 4817182 (1989-03-01), Adelson et al.
patent: 5014134 (1991-05-01), Lawton et al.

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