Variable speed playback of digital video stored in a non-tape me

Details Variable speed playback of digital video stored in a non-tape me Variable speed playback of digital video stored in a non-tape me

1997-06-10

1999-03-09

Chevalier, Robert

Motion video signal processing for recording or reproducing

Local trick play processing

With randomly accessible medium

386111, H04N 591, H04N 5917

Patent

active

058812024

ABSTRACT:
A method for high speed playback of digital video data (e.g. D1 or D2 data) in which, at lower speeds, the frames of data to be played back are made of a mixture of consecutive frames of data. The frames of data are mixed by averaging the pixel values over consecutive frames to make up the output frames. For high speed shuttle operation, non-consecutive frames are averaged on a pixel by pixel basis to create shuttle frames. In order to improve the appearance of the output, consecutive shuttle frames contain a common original frame so that a component of the original data spans two output frames.

REFERENCES:
patent: 5072296 (1991-12-01), Lim
patent: 5404170 (1995-04-01), Keating

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