METHOD AND APPARATUS FOR VIDEO CODING AND DECODING
First Claim
1. A method comprising:
- decoding a first picture of a first layer representing a first time instant;
decoding a temporal picture identifier and an indication of a first layer to determine a reference picture for decoding a second picture of a second layer representing a second time instant;
concluding based on the temporal picture identifier and the indication of the first layer that the first picture is the reference picture;
predicting the second picture by using the first picture as the reference picture, the first layer being a reference layer for inter-layer prediction of the second layer.
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Accused Products
Abstract
There are disclosed various methods, apparatuses and computer program products for video encoding and decoding. In some embodiments diagonal inter-layer prediction is enabled by providing an indication of a reference picture. In some embodiments the indication is provided as a combination of a temporal picture identifier and a layer identifier of the reference picture in another layer than the picture to be predicted. In an encoding method a first picture of a first layer representing a first time instant is encoded; a second picture representing a second time instant on a second layer is predicted by using the first picture as a reference picture; and
a temporal picture identifier and an indication of the first layer are provided to indicate the first picture.
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Citations
28 Claims
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1. A method comprising:
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decoding a first picture of a first layer representing a first time instant; decoding a temporal picture identifier and an indication of a first layer to determine a reference picture for decoding a second picture of a second layer representing a second time instant; concluding based on the temporal picture identifier and the indication of the first layer that the first picture is the reference picture; predicting the second picture by using the first picture as the reference picture, the first layer being a reference layer for inter-layer prediction of the second layer. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus comprising at least one processor and at least one memory, said at least one memory stored with code thereon, which when executed by said at least one processor, causes an apparatus to perform at least the following:
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decode a first picture of a first layer representing a first time instant; decode a temporal picture identifier and an indication of a first layer to determine a reference picture for decoding a second picture of a second layer representing a second time instant; conclude based on the temporal picture identifier and the indication of the first layer that the first picture is the reference picture; and predict the second picture by using the first picture as the reference picture. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method comprising:
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encoding a first picture of a first layer representing a first time instant; predicting a second picture representing a second time instant on a second layer by using the first picture as a reference picture; and providing a temporal picture identifier and an indication of the first layer to indicate the first picture. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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22. An apparatus comprising at least one processor and at least one memory, said at least one memory stored with code thereon, which when executed by said at least one processor, causes an apparatus to perform at least the following:
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encode a first picture of a first layer representing a first time instant; predict a second picture representing a second time instant on a second layer by using the first picture as a reference picture; and provide a temporal picture identifier and an indication of the first layer to indicate the first picture. - View Dependent Claims (23, 24, 25, 26, 27, 28)
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Specification