Method of encoding video signals

Details Method of encoding video signals Method of encoding video signals

2005-07-12

2005-07-12

Rao, Andy (Department: 2613)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

C375S240150

Reexamination Certificate

active

06917649

ABSTRACT:
The present invention relates to a method of encoding, which receives an input video signal (IS) for providing a compressed video data signal (CS). Said method comprises the steps of segmentation (SEG) of the input video signal for extracting the video object planes, hereafter referred to as VOP, contained in the video scene; detection (DET) of a non-visible VOP; correction (COR) for converting a bidirectionally predictive coded VOP preceding, in a display order, a non-visible intra or predictive coded VOP that has been detected (Y) by the detection step, into an intra or predictive coded VOP; encoding (ENC) the converted VOP, if a non-visible VOP has been detected by the detection step, or the regular VOP in the opposite case (N), resulting in the compressed video data signal. Use: MPEG-4 encoder.

REFERENCES:
patent: 5936671 (1999-08-01), Van Beek et al.
patent: 6400846 (2002-06-01), Lin et al.

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