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US 7,627,034 B2Granted
Method for scalably encoding and decoding video signal
AssigneeLG Electronics Inc.
InventorsSeung Wook Park, Ji Ho Park, Byeong Moon Jeon, Doe Hyun Yoon, Hyun Wook Park
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Abstract
In one embodiment, decoding of a video signal includes predicting at least a portion of a current image in a current layer based on at least a portion of a base image in a base layer and shift information for samples in the predicted current image.
Claims2
A method for decoding a video signal in a video decoder apparatus, comprising:
- obtaining, with the decoder apparatus, first phase shift information between a luma sample and a chroma sample in an enhanced layer;
- determining, with the decoder apparatus, whether second phase shift information between a luma sample and a chroma sample in a base layer exists;
- obtaining, with the decoder apparatus, second phase shift information from at least one of a sequence header and a slice header, based on the determining;
- obtaining, with the decoder apparatus, a reference pixel value based on the first phase shift information and the second phase shift information, the reference pixel value being upsampled from residual-coded data in the base layer;
- and
- decoding, with the decoder apparatus, a current block in the enhanced layer based on the reference pixel value.
3 more elements
Dependencies are inferred from the claim text.