Television picture coding device and corresponding decoding devi

Details Television picture coding device and corresponding decoding devi Television picture coding device and corresponding decoding devi

1989-11-03

1991-01-29

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358105, H04N 7137

Patent

active

049890891

ABSTRACT:
A television picture coding device which includes in particular a motion-estimation stage, a control circuit for controlling the motion-estimation stage, a coding stage, and a multiplexing stage, is characterized in that the original images are constituted by interlaced fields and partitioned into information blocks. The motion-estimation (110) includes displacement vectors determining circuits (201, 202, 210) and a format converting circuits (230). The controls stage (130) includes a comparator for making a comparison between a recovered non-transmitted field, to be recovered on the reception side, and an original field corresponding therewith, and a modifying circuit for modifying information components to be transmitted in case of an excessive distortion between the compared fields. A coding stage (120) is included for performing a spatial coding, and multipling stage for multiplexing the signals produced by the coding stage, the motion-estimation stage and the control stage.

REFERENCES:
patent: 4394774 (1983-07-01), Widergren
patent: 4727421 (1988-02-01), Koga
patent: 4751587 (1988-06-01), Asahina
patent: 4816906 (1989-03-01), Kummerfeldt
patent: 4821119 (1989-04-01), Gharavi
patent: 4849812 (1989-07-01), Borgers

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