Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1989-04-17
1990-08-28
Britton, Howard W.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358135, H04N 7133
Patent
active
049530186
ABSTRACT:
In a television transmission system for digital picture signals each picture is partitioned into sub-pictures of N.sub.1 .times.N.sub.2 pixels for limiting the bit rate. Each sub-picture is subjected to a forward picture transform for generating basic picture weighting factors. To this end each sub-picture is multiplied by a reference picture which has different values for different pixels (for example, as described by a Gauss function). This multiplied sub-picture is subsequently multiplied by a number of kernel pictures so that the said basic picture weighting factors are obtained. Each kernel picture is equal to the product of the reference picture and a basic picture. Of the collection of basic pictures each basic picture is an orthogonal polynomial associated with the square value of the reference picture. For regaining the original sub-pictures each weighting factor is multiplied by the original kernel picture from which the weighting factor is obtained. Each weighting factor of a sub-picture thus supplies an auxiliary sub-picture. Summation of all auxiliary sub-pictures yields a replica of the original sub-picture.
REFERENCES:
patent: 4831440 (1989-05-01), Borgers
patent: 4833535 (1989-05-01), Ozeki
Britton Howard W.
Marion Michael E.
U.S. Philips Corporation
LandOfFree
Television Transmission system using transmission of basic pictu does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Television Transmission system using transmission of basic pictu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Television Transmission system using transmission of basic pictu will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1593584