Coding apparatus and method, decoding apparatus and method, data processing system, storage medium, and signal
First Claim
1. A coding device for coding first information according to second information, comprising:
- receiving means for receiving the first information and the second information; and
coding means for embedding the second information into the first information and producing coded data so that decoding the coded data is performed by utilizing an energy distribution possessed by the first information.
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Accused Products
Abstract
A coding apparatus for embedding second data into first data without deteriorating the first data includes a memory for storing at least partial data of the first data. An embedding coder embeds the second data into the first data by rearranging, according to the second data, at least partial data of the first data stored in the memory. A decoding apparatus for decoding coded data into the original first data and the original second data without deteriorating the quality of the data includes a relation calculating unit for calculating a relation between first partial data and second partial data of the coded data. A decoder decodes the coded data into the original first data by moving the first partial data and the second partial data of the coded data based on the relation calculated by the relation calculating unit, and decodes the second data that is embedded in the coded data according to the movement.
53 Citations
20 Claims
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1. A coding device for coding first information according to second information, comprising:
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receiving means for receiving the first information and the second information; and coding means for embedding the second information into the first information and producing coded data so that decoding the coded data is performed by utilizing an energy distribution possessed by the first information. - View Dependent Claims (2, 3, 4)
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5. A coding method for coding first information according to second information, comprising the steps of:
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receiving the first information and the second information; and embedding the second information into the first information and producing coded data so that decoding the coded data is performed by utilizing an energy distribution possessed by the first information.
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6. A decoding device for decoding coded data obtained by coding first information according to second information, comprising:
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receiving means for receiving the coded data, the coded data having the second information embedded into the first information; and decoding means for decoding the coded data into the first information and the second information by utilizing an energy distribution possessed by the first information. - View Dependent Claims (7, 8, 9)
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10. A decoding method for decoding coded data obtained by coding first information according to second information, comprising the steps of:
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receiving the coded data, the coded data having the second information embedded into the first information; and decoding the coded data into the first and the second information by utilizing an energy distribution possessed by the first information.
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11. An information processing apparatus including a coding device for coding first information according to second information and for outputting, coded data and a decoding device for decoding the coded data, said information processing apparatus comprising:
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coding means for embedding the second information into the first information and producing coded data and for outputting the coded data so that decoding the coded data is performed by utilizing an energy distribution possessed by the first information; and decoding means for decoding the coded data into the first information and the second information by utilizing the energy distribution possessed by the first information. - View Dependent Claims (12, 13, 14, 15)
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16. An information processing method for an information processing apparatus which comprises a coding device for coding first information according to second information and for outputting coded data, and a decoding device for decoding the coded data, said information processing method comprising the steps of:
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embedding the second information into the first information and producing coded data by said coding device so that decoding the coded data is performed by utilizing an energy distribution possessed by the first information, and outputting the coded data from said coding device; and decoding the coded data, by said decoding device, into the first information and the second imformation by utilizing the energy distribution possessed by the first information.
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- 17. A storage medium for storing coded data obtained by embedding second information into first information and producing coded data so that decoding the coded data is performed by utilizing an energy distribution of the first information.
Specification