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US 5,886,736 AGranted
Synchronization of a stereoscopic video sequence
AssigneeGeneral Instrument Corporation
InventorXuemin Chen
Life of this patent
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AssigneeGeneral Instrument Corporation
InventorXuemin Chen
Estimating the term…
In a stereoscopic video transmission system, video pictures of lower and enhancement layers are transmitted in a particular order such that the number of pictures which must be temporarily stored prior to presentation is minimized. Furthermore, a decode time stamp (DTS) and presentation time stamp (PTS) for each picture can be determined to provide synchronization between the lower layer and enhancement layer pictures. Decoding may occur either sequentially or in parallel. In particular, a method is presented where the enhancement layer includes disparity-predicted pictures which are predicted using corresponding lower layer pictures. The video pictures are ordered such that the disparity-predicted enhancement layer pictures are transmitted after the corresponding respective lower layer pictures. The scheme is illustrated with a number of different specific examples.
A method for re-ordering of a sequence of video pictures in a lower layer (L) and an enhancement layer (E) of a stereoscopic video signal for transmission to a decoder, said enhancement layer including disparity-predicted pictures which are predicted using corresponding lower layer pictures, wherein said lower layer includes only intra-coded pictures (I-pictures), including consecutive pictures I.sub.Li, I.sub.Li+1, and I.sub.Li+2, and corresponding enhancement layer pictures are represented by H.sub.Ei, H.sub.Ei+1, and H.sub.Ei+2, respectively, and H designates a generic picture type, comprising the step of:
A method for re-ordering of a sequence of video pictures in a lower layer (L) and an enhancement layer (E) of a stereoscopic video signal for transmission to a decoder, said enhancement layer including disparity-predicted pictures which are predicted using corresponding lower layer pictures, wherein said lower layer includes only intra-coded pictures (I-pictures), including consecutive pictures I.sub.Li and I.sub.Li+1, and corresponding enhancement layer pictures are represented by H.sub.Ei and H.sub.Ei+1, respectively, and H designates a generic picture type, comprising the step of:
A method for re-ordering of a sequence of video pictures in a lower layer (L) and an enhancement layer (E) of a stereoscopic video signal for transmission to a decoder, said enhancement layer including disparity-predicted pictures which are predicted using corresponding lower layer pictures, wherein said lower layer includes only intra-coded pictures (I-pictures) and predictive-coded pictures (P-pictures), including consecutive pictures I.sub.Li, P.sub.Li+1, and P.sub.Li+2, and corresponding enhancement layer pictures are represented by H.sub.Ei, H.sub.Ei+1, and H.sub.Ei+2, respectively, and H designates a generic picture type, comprising the step of:
A method for re-ordering of a sequence of video pictures in a lower layer (L) and an enhancement layer (E) of a stereoscopic video signal for transmission to a decoder, said enhancement layer including disparity-predicted pictures which are predicted using corresponding lower layer pictures, wherein said lower layer includes only intra-coded pictures (I-pictures) and predictive-coded pictures (P-pictures), including consecutive pictures I.sub.Li and P.sub.Li+1, and corresponding enhancement layer pictures are represented by H.sub.Ei and H.sub.Ei+1, respectively, and H designates a generic picture type, comprising the step of:
A method for re-ordering of a sequence of video pictures in a lower layer (L) and an enhancement layer (E) of a stereoscopic video signal for transmission to a decoder, said enhancement layer including disparity-predicted pictures which are predicted using corresponding lower layer pictures, wherein said lower layer includes intra-coded pictures (I-pictures), predictive-coded pictures (P-pictures), and non-consecutive bi-directional predictive-coded pictures (B-pictures), including consecutive pictures I.sub.Li, B.sub.Li+1 and P.sub.Li+2, and corresponding enhancement layer pictures are represented by H.sub.Ei, H.sub.Ei+1 and H.sub.Ei+2, respectively, and H designates a generic picture type, comprising the step of:
A method for re-ordering of a sequence of video pictures in a lower layer (L) and an enhancement layer (E) of a stereoscopic video signal for transmission to a decoder, said enhancement layer including disparity-predicted pictures which are predicted using corresponding lower layer pictures, wherein said lower layer includes intra-coded pictures (I-pictures), predictive-coded pictures (P-pictures), and non-consecutive bi-directional predictive-coded pictures (B-pictures), including consecutive pictures I.sub.Li, B.sub.Li+1 and P.sub.Li+2, and corresponding enhancement layer pictures are represented by H.sub.Ei, H.sub.Ei+1 and H.sub.Ei+2, respectively, and H designates a generic picture type, comprising the step of:
A method for re-ordering of a sequence of video pictures in a lower layer (L) and an enhancement layer (E) of a stereoscopic video signal for transmission to a decoder, said enhancement layer including disparity-predicted pictures which are predicted using corresponding lower layer pictures, wherein said lower layer includes intra-coded pictures (I-pictures), predictive-coded pictures (P-pictures), and non-consecutive bi-directional predictive-coded pictures (B-pictures), including consecutive pictures I.sub.Li, B.sub.Li+1 and P.sub.Li+2, and corresponding enhancement layer pictures are represented by H.sub.Ei, H.sub.Ei+1 and H.sub.Ei+2, respectively, and H designates a generic picture type, comprising the step of:
A method for re-ordering of a sequence of video pictures in a lower layer (L) and an enhancement layer (E) of a stereoscopic video signal for transmission to a decoder, said enhancement layer including disparity-predicted pictures which are predicted using corresponding lower layer pictures, wherein said lower layer includes intra-coded pictures (I-pictures), predictive-coded pictures (P-pictures), and consecutive bi-directional predictive-coded pictures (B-pictures), including consecutive pictures I.sub.Li, B.sub.Li+1, B.sub.Li+2 and P.sub.Li+3, and corresponding enhancement layer pictures are represented by H.sub.Ei, H.sub.Ei+1, H.sub.Ei+2, and H.sub.Ei+3, respectively, and H designates a generic picture type, comprising the step of:
A method for re-ordering of a sequence of video pictures in a lower layer (L) and an enhancement layer (E) of a stereoscopic video signal for transmission to a decoder, said enhancement layer including disparity-predicted pictures which are predicted using corresponding lower layer pictures, wherein said lower layer includes intra-coded pictures (I-pictures), predictive-coded pictures (P-pictures), and consecutive bi-directional predictive-coded pictures (B-pictures), including consecutive pictures I.sub.Li, B.sub.Li+1, B.sub.Li+2 and P.sub.Li+3, and corresponding enhancement layer pictures are represented by H.sub.Ei, H.sub.Ei+1, H.sub.Ei+2, and H.sub.Ei+3, respectively, and H designates a generic picture type, comprising the step of:
A method for re-ordering of a sequence of video pictures in a lower layer (L) and an enhancement layer (E) of a stereoscopic video signal for transmission to a decoder, said enhancement layer including disparity-predicted pictures which are predicted using corresponding lower layer pictures, wherein said lower layer includes intra-coded pictures (I-pictures), predictive-coded pictures (P-pictures), and consecutive bi-directional predictive-coded pictures (B-pictures), including consecutive pictures I.sub.Li, B.sub.Li+1, B.sub.Li+2 and P.sub.Li+3, and corresponding enhancement layer pictures are represented by H.sub.Ei, H.sub.Ei+1, H.sub.Ei+2, and H.sub.Ei+3, respectively, and H designates a generic picture type, comprising the step of:
An encoding method to allow decoding in parallel of a sequence of video pictures in a lower layer and an enhancement layer of a stereoscopic video signal, wherein said lower layer includes at least one of intra-coded pictures (I-pictures) and predictive-coded pictures (P-pictures), but no bi-directional predictive-coded pictures (B-pictures), comprising the step of:
An encoding method to allow decoding in parallel of a sequence of video pictures in a lower layer and an enhancement layer of a stereoscopic video signal, wherein said lower layer includes non-consecutive bi-directional predictive-coded pictures (B-pictures), comprising the step of:
An encoding method to allow decoding in parallel of a sequence of video pictures in a lower layer and an enhancement layer of a stereoscopic video signal, wherein said lower layer includes at least one group of two consecutive bi-directional predictive-coded pictures (B-pictures), comprising the step of:
Dependencies are inferred from the claim text.