Data decompression system and method

Details Data decompression system and method Data decompression system and method

1990-04-25

1991-09-10

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

358432, 358433, G06K 936

Patent

active

050481126

ABSTRACT:
Data decompression of an image is implemented by reconstructing blocks of pixels from a table that stores orthogonal icons and related attributes representing a data compressed image. Each block of pixels is processed independently of all other blocks. Orthogonal processing is employed to reconstruct orthogonal features that relate to manufactured elements in an image. An optimum set of orthogonal icons and an optimum set of attributes for each icon are employed to further improve data decompression and fidelity. The optimal set of orthogonal icons includes a flat icon, an edge icon, a ribbon icon, a corner icon and a spot icon. The optimal set of attributes includes average intensities, intensity transition position and separation, and angle of the principal axis.

REFERENCES:
patent: 3980809 (1976-09-01), Cook
patent: 4758979 (1988-07-01), Chiao-Yoeh

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