Image encoding apparatus

Details Image encoding apparatus Image encoding apparatus

1993-03-17

1994-07-26

Britton, Howard W.

Television

Bandwidth reduction system

Data rate reduction

375122, H04N 7133

Patent

active

053330137

ABSTRACT:
In an image encoding apparatus, conversion data obtained by converting image information onto a frequency region, and corresponding to several frames, are parallelly output using a one-frame-period delay circuit. The parallelly output conversion data are quantized by a quantization circuit, and the amount of data to be obtained when the quantized data are encoded is determined by a variable-length coding circuit. The data amount information is input to a coefficient operation circuit for determining a quantization step of the next stage. Conversion data quantized according to an output from the coefficient operation circuit are encoded, and the encoded data are output.

REFERENCES:
patent: 5073820 (1991-12-01), Nakagawa
patent: 5146324 (1992-09-01), Miller

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