Identifying film frames in a video sequence

Details Identifying film frames in a video sequence Identifying film frames in a video sequence

1994-02-22

1996-10-15

Tran, Thai O.

Motion video signal processing for recording or reproducing

Local trick play processing

With randomly accessible medium

348 96, H04N 576, H04N 5253, H04N 947

Patent

active

055659985

ABSTRACT:
An apparatus for identifying automatically from an interlaced video recording the frames of an original cine-film sequence from which the video recording has been derived. The apparatus includes an evaluation for evaluating, for each successive pair of fields, a function measuring correlation between adjacent odd and even picture lines taken from the first and second fields of the pair, respectively; a comparator for comparing the correlation function of each field pair with that of at least one neighboring pair in the sequence; and a selector for identifying pairs with greater correlation than their neighbors as being derived from the same original film frame. The original frames are reconstructed and fed to an MPEG motion picture encoder to obtain high quality compressed video, Also provided is automatic scene cut detection which allows adaptive operation of the MPEG encoder.

REFERENCES:
patent: 4786979 (1988-11-01), Claus et al.
patent: 4901161 (1990-02-01), Giovanella
patent: 4998287 (1991-03-01), Katznelson et al.
patent: 5365280 (1994-11-01), De Haan et al.
patent: 5412737 (1995-05-01), Govrin

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