Signalling and extraction in compressed video of pictures belonging to interdependency tiers
First Claim
Patent Images
1. A method, comprising:
- providing a video stream, wherein successive pictures in the video stream are provided in a transmission order; and
providing a first instance of plural flags, said plural flags associated respectively to plural picture interdependency tiers, wherein a first flag value in any of the plural provided flags asserts the presence of a field corresponding to a picture interdependency tier associated with the respective flag, wherein a picture of the video stream is associated to at most one interdependency tier, wherein a tier number for a picture represents hierarchy of decodability of the picture, and wherein the field corresponding to the picture interdependency tier is provided at a predetermined increment of pictures in the video stream.
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Abstract
In one embodiment, a method comprises providing a video stream, and providing information identifying compressed pictures in the video stream corresponding to respective picture interdependency tiers.
283 Citations
14 Claims
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1. A method, comprising:
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providing a video stream, wherein successive pictures in the video stream are provided in a transmission order; and providing a first instance of plural flags, said plural flags associated respectively to plural picture interdependency tiers, wherein a first flag value in any of the plural provided flags asserts the presence of a field corresponding to a picture interdependency tier associated with the respective flag, wherein a picture of the video stream is associated to at most one interdependency tier, wherein a tier number for a picture represents hierarchy of decodability of the picture, and wherein the field corresponding to the picture interdependency tier is provided at a predetermined increment of pictures in the video stream. - View Dependent Claims (2, 3, 4, 5, 10, 11, 12, 13, 14)
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6. A method, comprising:
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receiving a video stream; processing of compressed video and information identifying pictures corresponding to respective interdependency tiers wherein provided flags associate respectively to the interdependency tiers, wherein a first flag value in any of the plural provided flags asserts the presence of a field corresponding to an interdependency tier associated with the respective flag, wherein a picture of the video stream is associated to at most one interdependency tier, wherein a tier number for a picture represents hierarchy of decodability of the picture, and wherein the field corresponding to the picture interdependency tier is provided at a predetermined increment of pictures in the video stream; and processing bitmap related information for interdependency tiers above a certain tier in a hierarchy. - View Dependent Claims (7, 8)
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9. A method, comprising:
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providing a video stream; providing information identifying compressed pictures in the video stream corresponding to respective picture interdependency tiers, wherein the provided information comprises flags associated respectively to the interdependency tiers, wherein a first flag value in any of the plural provided flags asserts the presence of a field corresponding to an interdependency tier associated with the respective flag, wherein a picture of the video stream is associated to at most one interdependency tier, wherein a tier number for a picture represents hierarchy of decodability of the picture, and wherein the field corresponding to the picture interdependency tier is provided at a predetermined increment of pictures in the video stream; and providing bitmap related information for interdependency tiers above a certain tier in a hierarchy.
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Specification