Method and apparatus for frame manipulation

Details Method and apparatus for frame manipulation Method and apparatus for frame manipulation

1997-11-04

2000-04-04

Britton, Howard

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

348384, 348620, 348415, H04N 736

Patent

active

060470283

ABSTRACT:
A method for generating an updated video stream from an incoming video stream for use in image encoding applications includes the steps of replacing each predetermined reference frame amongst a second plurality with an updated reference frame, obtained by temporal filtering of a first plurality of frames from said incoming video stream at positions dependent on the position of said each predetermined reference frame. If afterwards encoded using an encoding algorithm using the updated reference frames as reference frames, the thus encoded updated video stream will show a reduced peak-to-mean bitrate ratio compared to the encoded original video stream. An apparatus for performing this method is described as well.

REFERENCES:
patent: 5134476 (1992-07-01), Aravind et al.
patent: 5231484 (1993-07-01), Gonzales
patent: 5317397 (1994-05-01), Odaka et al.
patent: 5361105 (1994-11-01), Iu

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