Scalability techniques involving formatting the layers as a function of picture distortion after decoding, e.g. signal-to-noise [SNR] scalability

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Methods or arrangements for coding, decoding, compressing or decompressing digital video signals > using hierarchical techniques, e.g. scalability (H04N19/63 takes precedence) > Scalability techniques involving formatting the layers as a function of picture distortion after decoding, e.g. signal-to-noise [SNR] scalability