Variable-rate video coding apparatus for maintaining a desired a

Details Variable-rate video coding apparatus for maintaining a desired a Variable-rate video coding apparatus for maintaining a desired a

1993-06-02

1995-05-16

Groody, James J.

Television

Bandwidth reduction system

Data rate reduction

348409, H04N 1102, H04N 1104

Patent

active

054165210

ABSTRACT:
A video coding apparatus comprises a coding section and a control section. The coding section codes video signal input on a frame basis according to plural coding methods which vary between frames. The coding methods are repeated at a period which is an integral divisor of a window which contains plural frames. The control section restricts a number of bits of the video signal corresponding to the window size, coded by the coding section, below predetermined value according to a target number of bits set in accordance with the kind of frame.

REFERENCES:
patent: 5155593 (1992-10-01), Yonemitsu et al.
"Impacts of Average Bitrate Policing on Video Transmission in ATM Networks", TomoakiTanaka, Sakae Okubo, IE 92-15, pp. 21-27.

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