Image analysis – Image compression or coding
Patent
1992-03-30
1995-05-16
Razavi, Michael T.
Image analysis
Image compression or coding
358248, G06K 936
Patent
active
054168562
ABSTRACT:
A method is provided for encoding an image in an iterated transformation image compression system. The image, represented by an array of pixels, is partitioned into ranges and domains. A transformation is generated for each domain such that no transformation is constrained to be contractive. Each domain's transformation is optimized in terms of the intensity scaling and offset coefficients. A domain and corresponding optimized transformation is selected that minimizes transformation error data. These steps are repeated for a chosen plurality of the ranges that form a non-overlapping tiling of the image and such that the corresponding optimized transformations associated with the chosen plurality form an eventually contractive map. Information that identifies each of the chosen plurality of the ranges and the selected domains and corresponding optimized transformations is then stored in an addressable memory as an encoding of the image.
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Boss Roger D.
Fisher Yuval
Jacobs Everett W.
Fendelman Harvey
Keough Thomas Glenn
Prikockis Larry J.
Razavi Michael T.
The United States of America as represented by the Secretary of
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