Television – Image signal processing circuitry specific to television – Special effects
Patent
1997-02-19
1999-09-28
Lee, Richard
Television
Image signal processing circuitry specific to television
Special effects
348416, 348699, H04N 732
Patent
active
059596902
ABSTRACT:
A method and apparatus for transition effects in digitally compressed motion video, such video complying with the MPEG-1 standard. Transitions between two frames of video are effectuated by selecting a FROM frame and a TO frame, generating a stream of bidirectionally dependent duplicator frames which vary in their motion vector references to the FROM frame and the TO frame according to a predefined pattern, placing the FROM frame in the past buffer of a decoder, placing the TO frame in the future frame of a decoder, feeding the stream of duplicator frames to the decoder, causing the duplicator frames to be displayed, and beginning normal playback of the video stream containing the TO frame at the TO frame position.
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Toebes, VIII John A.
Walker Douglas J.
Evans Richard W.
Lee Richard
SAS Institute Inc.
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