Arrangement for optimized weighting of transmitted transformatio

Details Arrangement for optimized weighting of transmitted transformatio Arrangement for optimized weighting of transmitted transformatio

1987-09-30

1989-08-29

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

364725, H04N 7133

Patent

active

048622630

ABSTRACT:
An arrangement for optimized weighting of transmitted transformation coefficients in transformation coders for the purpose of minimizing convolution distortions in the transformation coding of image signals for the purpose of a data reduction and/or for the purpose of achieving a prescribed channel rate, has weighting circuitry whereby coefficients to be transmitted are additionally subjected to a weighting or windowing; and the selection of suitable weighting factors which effect a minimization of the convolution distortions in the reconstructed image is executed, dependent on the plurality of coefficients to be transmitted.

REFERENCES:
patent: 4672441 (1987-06-01), Hoelzlwimmer
patent: 4698689 (1987-10-01), Tzou
patent: 4709394 (1987-11-01), Bessler
patent: 4718104 (1988-01-01), Anderson

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