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US 2012/0269276 A1Published application
Nal unit header
AssigneeVidyo, Inc.
InventorsDanny Hong, Jill Boyce, Won Kap Jang, Stephan Wenger
Life of this patent
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Abstract
Disclosed are techniques for scalable, multiview, and multiple descriptive video coding using an improved Network Adaptation Layer (NAL) unit header. A NAL unit header can include a layer-id that can be a reference into a table of layer descriptions, which specify the properties of the layer. The improved NAL unit header can further include fields for reference picture management and to identify temporal layers.
Claims28
A method for video decoding, comprising:
- receiving a table of layer descriptions comprising at least one layer description identified by a first layer_id;
- receiving a NAL unit header comprising a second layer_id;
- and
- determining at least one property of the layer that the NAL unit belongs to by matching the second layer_id with the first layer_id.
1 more element
A method for video encoding, comprising:
- determining a layer structure comprising at least one layer having a first layer_id;
- encoding a representation of the layer structure in a table of layers, the table of layers comprising layer descriptions comprising at least one property of the layer;
- and
- encoding at least one NAL unit comprising a second layer_id;
- wherein the second layer_id is the same as the first layer_id.
2 more elements
A method for removing NAL units from a scalable bitstream, comprising:
- receiving and decoding a table of layer descriptions comprising at least one layer description comprising at least one first layer_id;
- receiving a slice NAL unit comprising a NAL unit header comprising a second layer_id;
- removing the slice NAL unit only if the second layer_id identifies it as belonging to a layer to be removed.
Dependencies are inferred from the claim text.