Methods and systems for residual layer scaling
First Claim
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1. A method for scaling transform coefficients in a multi-layer bitstream having a first layer and a second layer, said method comprising:
- (a) a processor determining a first-layer quantization parameter based on said multi-layer bitstream;
(b) a processor determining a second-layer quantization parameter based on said multi-layer bitstream;
(c) a processor scaling a first-layer transform coefficient based on said first-layer quantization parameter and said second-layer quantization parameter, and without reconstructing said first layer;
(d) a processor modifying the scaled said first-layer transform coefficient using data from said second layer; and
(e) a processor reconstructing said second layer, without reconstruction of said first layer;
wherein said scaling is performed according to the following relationship;
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Abstract
Embodiments of the present invention comprise systems and methods for managing and combining data contained in layers in a multilayer bitstream such that one or more transform coefficients in a first layer are used to modify one or more coefficients in a second layers that in turn is reconstructed using the modified one or more coefficients.
59 Citations
21 Claims
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1. A method for scaling transform coefficients in a multi-layer bitstream having a first layer and a second layer, said method comprising:
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(a) a processor determining a first-layer quantization parameter based on said multi-layer bitstream; (b) a processor determining a second-layer quantization parameter based on said multi-layer bitstream; (c) a processor scaling a first-layer transform coefficient based on said first-layer quantization parameter and said second-layer quantization parameter, and without reconstructing said first layer; (d) a processor modifying the scaled said first-layer transform coefficient using data from said second layer; and (e) a processor reconstructing said second layer, without reconstruction of said first layer; wherein said scaling is performed according to the following relationship; - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification