Facsimile and static presentation processing – Facsimile – Reduced time or bandwidth for static image communication
Patent
1988-01-22
1989-09-26
Coles, Sr., Edward L.
Facsimile and static presentation processing
Facsimile
Reduced time or bandwidth for static image communication
358133, 358447, H04N 1415, H04N 140
Patent
active
048704970
ABSTRACT:
A high resolution image is decomposed to a basic lower resolution replica and a plurality of supplemental information fields for use in a progressive high resolution image facsimile transmission system. The basic lower resolution replica is generated by successive decompositions of the original image into a plurality of intermediate lower resolution replicas and corresponding supplemental information fields by employing a so-called edge decomposition technique. The supplemental information fields are required in a receiver to upgrade the basic lower resolution replica toward the original high resolution replica.
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Chamzas Christodoulos
Duttweiler Donald L.
American Telephone and Telegraph Company
AT&T Bell Laboratories
Coles Sr. Edward L.
Stafford Thomas
Svihla Randall S.
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