Video signal encoding method with a substantially constant amoun

Details Video signal encoding method with a substantially constant amoun Video signal encoding method with a substantially constant amoun

1990-12-26

1992-06-30

Peng, John K.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358135, 358167, 382 56, H04N 712, H04N 5213

Patent

active

051268426

ABSTRACT:
A method of encoding a video signal into highly efficiently encoded data comprises the steps of: digitizing and blocking the video signal; performing a discrete cosine or Fourier transform on the blocked data; controlling the amount of data in each block to be substantially constant according to an amount of encoded data awaiting transmission; calculating a threshold amplitude; and selecting data larger in amplitude than the threshold amplitude as encoded data for transmission.

REFERENCES:
patent: 4189748 (1980-02-01), Reis
patent: 4672441 (1987-06-01), Hoelzlwimmer et al.
patent: 4707738 (1987-11-01), Ferre et al.
patent: 4894713 (1990-01-01), Delogne et al.
patent: 4972260 (1990-11-01), Fujikawa et al.

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