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Information processing device and method

An information processing device and a technology for additional information, applied in image communication, electrical components, etc., to solve problems such as incorrect information decoding

Inactive Publication Date: 2009-03-11
RICOH KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, there are limitations in the use of error correction techniques
That is, in the case of missing information or errors that cannot be corrected by using error correction techniques, there will be the possibility of decoding incorrect information
Therefore, subsequent information processing functions will not be performed in a stable and reliable manner

Method used

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  • Information processing device and method
  • Information processing device and method
  • Information processing device and method

Examples

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Embodiment Construction

[0029] Exemplary embodiments of the present invention are described in detail below by referring to the accompanying drawings. The invention is not limited to these illustrative examples.

[0030] It is assumed that the information processing apparatus according to the exemplary embodiment is a standard personal computer (PC), although the information processing apparatus is not limited thereto.

[0031] figure 1 is a schematic diagram of a printing system according to an embodiment of the present invention. The printing system includes one or more PCs 1 , a printer 3 and a scanner 4 interconnected by a network 2 such as a local area network (LAN). PC1 generates digital file data and sends the digital file data to printer 3 via network 2 for printing. The scanner 4 reads the printed digital file data and sends the digital file data to one or more PC1 through the network 2 for information processing.

[0032] figure 2 is a schematic diagram of an exemplary hardware config...

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Abstract

In an information processing device, error detection information is generated from additional information and a header is generated from error detection information. An encoded header is then generated by appending a header-error correction code to the header and encoded additional information is generated by appending an information-error correction code to the additional information. Finally, an information-appended image is generated by integratedly appending the encoded header and the encoded additional information to the target image.

Description

[0001] Cross References to Related Applications [0002] This application claims priority from Japanese priority documents 2007-229329 filed in Japan on September 4, 2007 and Japanese priority documents 2008-165945 filed in Japan on June 25, 2008, the entire contents of which are incorporated by reference here. technical field [0003] The present invention relates to a technique for attaching additional information to an image and extracting the additional information from the image with the additional information. Background technique [0004] In recent years, the development of information embedding technology has enabled embedding of additional information into printed literature. The additional information may be information related to content protection of printed documents, original digital data of printed documents, web pages related to printed documents, and the like. Such additional information can be embedded in printed documents by drawing specific image patter...

Claims

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Application Information

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IPC IPC(8): H04N1/32
Inventor 石井真树
Owner RICOH KK
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