Video Coding and Decoding
First Claim
Patent Images
1. A method comprising:
- encoding a first picture from a first sequence and a second picture from a second sequence into a first access unit of at least one bitstream;
determining a random access position for the at least one bitstream;
encoding a third picture from the first sequence and a fourth picture from the second sequence into a second access unit of the at least one bitstream, the second access unit following the random access position, the third picture being intra coded and the fourth picture being predicted from the second picture.
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Abstract
There is disclosed a method, an apparatus, a server, a client and a non-transitory computer readable medium comprising a computer program stored therein for multi view video coding and decoding. View random access (VRA) pictures or access units are coded into a multiview bitstream. VRA pictures enable starting the decoding of a subset of the views present in the bitstream. The views selected to be accessible in VRA pictures are alternated in successive VRA pictures so that all views are gradually reconstructed when two or more VRA pictures have been decoded.
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Citations
24 Claims
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1. A method comprising:
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encoding a first picture from a first sequence and a second picture from a second sequence into a first access unit of at least one bitstream; determining a random access position for the at least one bitstream; encoding a third picture from the first sequence and a fourth picture from the second sequence into a second access unit of the at least one bitstream, the second access unit following the random access position, the third picture being intra coded and the fourth picture being predicted from the second picture. - View Dependent Claims (2, 3, 4, 5)
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6. An apparatus comprising at least one processor, and at least one memory including computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to:
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encode a first picture from a first sequence and a second picture from a second sequence into a first access unit of at least one bitstream; determine a random access position for the at least one bitstream; and encode a third picture from the first sequence and a fourth picture from the second sequence into a second access unit of the at least one bitstream, the second access unit following the random access position, the third picture being intra coded and the fourth picture being predicted from the second picture. - View Dependent Claims (7, 8, 9, 10)
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11. A computer program embodied on a non-transitory computer readable medium, the computer program comprising instructions causing, when executed on at least one processor, at least one apparatus to
encode a first picture from a first sequence and a second picture from a second sequence into a first access unit of at least one bitstream; -
determine a random access position for the at least one bitstream; encode a third picture from the first sequence and a fourth picture from the second sequence into a second access unit of the at least one bitstream, the second access unit following the random access position, the third picture being intra coded and the fourth picture being predicted from the second picture. - View Dependent Claims (12)
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13. A method comprising:
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concluding a first random access position from at least one bitstream, the first random access position being followed by a first access unit comprising a first coded picture from a first view and a second coded picture from a second view, the first coded picture being intra coded and the second coded picture being predicted from a picture preceding the random access position; starting the decoding from the first random access position; decoding the first coded picture; decoding one or more subsequent coded pictures from the first view. - View Dependent Claims (14, 15, 16)
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17. An apparatus comprising at least one processor, memory including computer program code, the memory and the computer program code configured to, with the at least one processor, cause the apparatus to
conclude a first random access position from at least one bitstream, the first random access position being followed by a first access unit comprising a first coded picture from a first view and a second coded picture from a second view, the first coded picture being intra coded and the second coded picture being predicted from a picture preceding the random access position; -
start the decoding from the first random access position; decode the first coded picture; decode one or more subsequent coded pictures from the first view. - View Dependent Claims (18, 19, 20)
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21. A computer program embodied on a non-transitory computer readable medium, the computer program according to some example embodiments comprising instructions causing, when executed on at least one processor, at least one apparatus to
conclude a first random access position from at least one bitstream, the first random access position being followed by a first access unit comprising a first coded picture from a first view and a second coded picture from a second view, the first coded picture being intra coded and the second coded picture being predicted from a picture preceding the random access position; -
start the decoding from the first random access position; decode the first coded picture; decode one or more subsequent coded pictures from the first view. - View Dependent Claims (22)
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23. An apparatus comprising:
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means for encoding a first picture from a first sequence and a second picture from a second sequence into a first access unit of at least one bitstream; means for determining a random access position for the at least one bitstream; and means for encoding a third picture from the first sequence and a fourth picture from the second sequence into a second access unit of the at least one bitstream, the second access unit following the random access position, the third picture being intra coded and the fourth picture being predicted from the second picture.
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24. An apparatus comprising:
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means for concluding a first random access position from at least one bitstream, the first random access position being followed by a first coded picture from a first view and a second coded picture from a second view, the first coded picture being intra coded and the second coded picture being predicted from a picture prior to the random access position, and the first coded picture and the second coded picture representing a first moment of time; means for starting the decoding from the first random access position; means for decoding the first coded picture; means for decoding one or more subsequent coded pictures from the first view.
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Specification