Image data processing of correlated images

Details Image data processing of correlated images Image data processing of correlated images

1990-10-19

1993-01-05

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

358433, 36471502, G06K 936

Patent

active

051777967

ABSTRACT:
To encode data representative of correlated images, a sequence of arrays of source image data is provided in which each array is representative of an image. Each array of source image data is partitioned into a plurality of source image-data blocks. For each sequence of source image-data blocks, at least one prototypical image-data block is derived from at least a portion of the source image data of the sequence. For each source image-data block, a translation coefficient and a number of scaling coefficients equal to the number of prototypical image-data blocks associated with the sequence are determined. A difference image-data block is formed for each source image-data block from elements of the source image-data block minus the associated translation coefficient minus the sum in turn of each associated scaling coefficient multiplied by elements of the corresponding prototypical image-data block. Each difference image-data block is subjected to an image-data compression procedure to form a set of data-compression-encoded difference image-data elements. Each set of data-compression-encoded difference image-data elements may be stored in digital storage in association with the scaling coefficients and the translation coefficient associated with the corresponding source image-data block.

REFERENCES:
patent: 4179709 (1979-12-01), Workman
patent: 4698689 (1987-10-01), Tzou
patent: 4797741 (1989-01-01), Sato et al.
Ernest L. Hall, Computer Image Processing and Recognition, (Academic Press, 1979) pp. 342-367.

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