Apparatus for band compression processing of a picture signal

Details Apparatus for band compression processing of a picture signal Apparatus for band compression processing of a picture signal

1985-03-11

1987-05-26

Goldberg, E. A.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358105, 358138, H04N 712, H04N 718

Patent

active

046689877

ABSTRACT:
An apparatus for band compression processing of a picture signal which generates forecasting error signal and movement vector and updates only the movement vector during a comb-out operation. During comb-out processing, a picture signal is recirculated while the movement vector is produced and accumulated. At the end of the comb-out processing, the change in the movement vector from the accumulated vector is within a desired range. Therefore, the scale of a circuit for detecting the movement vector after the comb-out operation does not increase.

REFERENCES:
patent: 4047221 (1977-09-01), Yasuda et al.
patent: 4383272 (1983-05-01), Netavali et al.
patent: 4460923 (1984-07-01), Hirano et al.
patent: 4597010 (1986-06-01), Carr

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