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US 2004/0111603 A1Published application
Document administration apparatus, document administration method, computer program, and computer-readable memory medium
AssigneeCanon Kabushiki Kaisha
InventorKeiichi Iwamura
Life of this patent
Estimating the term…
Abstract
To enable a user to efficiently recognize authenticity of a paper document, the content of a input electronic document is read by an OCR technique, a hash value in regard to the read OCR result is stored as authenticity confirmation information on a server, and a URL indicating a position where the hash value has been stored is embedded in the electronic document by using a digital watermark.
Claims20
A document administration apparatus comprising:
- document image input means for inputting a document image;
- document discrimination information extraction means for extracting document discrimination information from the document image input by said document image input means;
- authenticity confirmation information generation means for generating authenticity confirmation information by performing a predetermined conversion process to the document discrimination information extracted by said document discrimination information extraction means;
- authenticity confirmation information storage means for storing the authenticity confirmation information generated by said authenticity confirmation information generation means in a predetermined storage position connected to a network;
- and
- storage position information embedding means for embedding information indicating the storage position into the document image.
3 more elements
A document administration apparatus comprising:
- document image input means for inputting a document image;
- document discrimination information extraction means for extracting document discrimination information from the document image input by said document image input means;
- authenticity confirmation information generation means for generating authenticity confirmation information by performing a predetermined conversion process to the document discrimination information extracted by said document discrimination information extraction means;
- information extraction means for extracting a digital watermark embedded in the document image input by said document image input means;
- access means for accessing a point on a network on the basis of information extracted as the digital watermark by said information extraction means;
- and
- authenticity confirmation information comparison means for comparing authenticity confirmation information stored at the point accessed by said access means with the authenticity confirmation information generated by said authenticity confirmation information generation means.
4 more elements
A document administration apparatus comprising:
- document image input means for inputting a document image;
- document discrimination information extraction means for extracting document discrimination information from the document image input by said document image input means;
- authenticity confirmation information generation means for generating authenticity confirmation information by performing a predetermined conversion process to the document discrimination information extracted by said document discrimination information extraction means;
- and
- authenticity confirmation information comparison means for comparing the authenticity confirmation information generated by said authenticity confirmation information generation means with authenticity confirmation information previously stored.
2 more elements
A document administration apparatus comprising:
- document image input means for inputting a document image;
- document discrimination information extraction means for extracting document discrimination information from the document image input by said document image input means;
- and
- document discrimination information comparison means for comparing the document discrimination information extracted by said document discrimination information extraction means with document discrimination information previously stored.
1 more element
A document administration method comprising:
- a document image input step of inputting a document image;
- a document discrimination information extraction step of extracting document discrimination information from the document image input in said document image input step;
- an authenticity confirmation information generation step of generating authenticity confirmation information by performing a predetermined conversion process to the document discrimination information extracted in said document discrimination information extraction step;
- predetermined conversion process to the document discrimination information extracted in said document discrimination information extraction step;
- and
- an authenticity confirmation information comparison step of comparing the authenticity confirmation information generated in said authenticity confirmation information generation step with authenticity confirmation information previously stored.
- an authenticity confirmation information storage step of storing the authenticity confirmation information generated in said authenticity confirmation information generation step, in a predetermined storage position connected to a network;
- and
- a storage position information embedding step of embedding information indicating the storage position into the document image.
6 more elements
A document administration method comprising:
- a document image input step of inputting a document image;
- a document discrimination information extraction step of extracting document discrimination information from the document image input in said document image input step;
- an authenticity confirmation information generation step of generating authenticity confirmation information by performing a predetermined conversion process to the document discrimination information extracted in said document discrimination information extraction step;
- an information extraction step of extracting a digital watermark embedded in the document image input in said document image input step;
- an access step of accessing a point on a network on the basis of information extracted as the digital watermark in said information extraction step;
- and
- an authenticity confirmation information comparison step of comparing authenticity confirmation information stored at the point accessed in said access step with the authenticity confirmation information generated in said authenticity confirmation information generation step.
4 more elements
A document administration method comprising:
- a document image input step of inputting a document image;
- a document discrimination information extraction step of extracting document discrimination information from the document image input in said document image input step;
- an authenticity confirmation information generation step of generating authenticity confirmation information by performing a predetermined conversion process to the document discrimination information extracted in said document discrimination information extraction step;
- and
- an authenticity confirmation information comparison step of comparing the authenticity confirmation information generated in said authenticity confirmation information generation step with authenticity confirmation information previously stored.
2 more elements
A document administration method comprising:
- a document image input step of inputting a document image;
- a document discrimination information extraction step of extracting document discrimination information from the document image input in said document image input step;
- and
- a document discrimination information comparison step of comparing the document discrimination information extracted in said document discrimination information extraction step with document discrimination information previously stored.
1 more element
A computer program which executes a document administration method comprising:
- a document image input step of inputting a document image;
- a document discrimination information extraction step of extracting document discrimination information from the document image input in said document image input step;
- an authenticity confirmation information generation step of generating authenticity confirmation information by performing a predetermined conversion process to the document discrimination information extracted in said document discrimination information extraction step;
- an authenticity confirmation information storage step of storing the authenticity confirmation information generated in said authenticity confirmation information generation step, in a predetermined storage position connected to a network;
- and
- a storage position information embedding step of embedding information indicating the storage position into the document image.
3 more elements
A computer program which executes a document administration method comprising:
- a document image input step of inputting a document image;
- a document discrimination information extraction step of extracting document discrimination information from the document image input in said document image input step;
- an authenticity confirmation information generation step of generating authenticity confirmation information by performing a predetermined conversion process to the document discrimination information extracted in said document discrimination information extraction step;
- and
- an authenticity confirmation information comparison step of comparing the authenticity confirmation information generated in said authenticity confirmation information generation step with authenticity confirmation information previously stored.
2 more elements
A computer-readable recording medium which records thereon a computer program for executing a document administration method comprising:
- a document image input step of inputting a document image;
- a document discrimination information extraction step of extracting document discrimination information from the document image input in said document image input step;
- an authenticity confirmation information generation step of generating authenticity confirmation information by performing a predetermined conversion process to the document discrimination information extracted in said document discrimination information extraction step;
- an authenticity confirmation information storage step of storing the authenticity confirmation information generated in said authenticity confirmation information generation step, in a predetermined storage position connected to a network;
- and
- a storage position information embedding step of embedding information indicating the storage position into the document image.
3 more elements
A computer-readable recording medium which records thereon a computer program for executing a document administration method comprising:
- a document image input step of inputting a document image;
- a document discrimination information extraction step of extracting document discrimination information from the document image input in said document image input step;
- an authenticity confirmation information generation step of generating authenticity confirmation information by performing a
Dependencies are inferred from the claim text.