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AssigneeKddi Corporation
InventorsKei Kawamura, Sei Naito
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A decoding device includes a transformer sets a decoded luminance component of a prediction target block to the same number of samples as that of the chrominance component corresponding to the decoded luminance component of the prediction target block and generates a luminance reference signal. A specificator specifies luminance pixels having minimum and maximum pixel values of the decoded luminance component adjacent to the decoded luminance component of the prediction target block, respectively, outputs luminance pixel values obtained from specified luminance pixels, and outputs chrominance pixel values from pigment pixels corresponding to the luminance pixels. A derivator derives a linear prediction parameter from the two pixel values and a linear prediction model. A chrominance linear predictor obtains chrominance prediction signal applying the linear prediction model based on the linear prediction parameter to the luminance reference signal. The chrominance prediction and residual signals are summed to generate a reconstructed chrominance signal.
A moving picture decoder configured to decode encoded data, comprising a memory comprising programmed instructions stored in the memory and a processor configured to be capable of executing the programmed instructions stored in the memory to:
A moving picture decoding method for decoding encoded data, the moving picture decoding method comprising:
A non-transitory computer readable medium having stored thereon instructions for decoding encoded data, comprising machine executable code which when executed by at least one machine causes the machine to perform:
Dependencies are inferred from the claim text.