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Document image processing apparatus and method

A document image and processing device technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of long list time and storage capacity, and achieve the effect of high precision

Active Publication Date: 2013-02-06
SHARP KK
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, since this list of subject words is extracted from the entire document, it takes a lot of time and storage capacity to generate the list

Method used

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  • Document image processing apparatus and method
  • Document image processing apparatus and method
  • Document image processing apparatus and method

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Embodiment Construction

[0090] The purpose, features, and advantages of the present invention will be further clarified from the following detailed description and accompanying drawings.

[0091] Preferred embodiments of the present invention will be described in detail below with reference to the drawings.

[0092] figure 1 is a schematic block diagram of the configuration of the document image processing device 10 . The document image processing device 10 has a processor 4 and an external storage device 5 storing software and the like for causing the processor 4 to perform actual processing.

[0093] The processor 4 actually performs the following processing: document image feature extraction processing, which extracts a title area to be a retrieval point from the document image; index information generation processing, which generates index information enabling retrieval of the document image; retrieval processing using the index information; Furthermore, document image management processing suc...

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Abstract

A character string of which the character number is M in a file image is extracted and separated into units one character by one character; the image feature of each character image is extracted; according to image features, Front feature dictionary 15 which stores the image features of the character images with 1 character as a unit is utilized; N (which is an integer larger than 1) character images are taken as alternative characters according to match degree in sequence from high to low; and a first index matrix of the character number of the extracted character string of M multiplied by N dimensionality is created. The first index matrix created is made into a character combination to extract key words according to the definition analysis based on a conceptual dictionary. The extracted key words are displayed in a list according to the sequence based on required weight and statistic information.

Description

technical field [0001] The present invention relates to a document image processing device and a document image processing method for inputting and storing a document as an image, and more particularly to a document image processing device and a document image processing method for displaying keywords contained in a stored document image. Background technique [0002] Document archiving devices that convert documents into images using image input devices such as image scanners and store them in the form of electronic documents, and then search them, have been put into practical use. The technology related to such a document archiving device is disclosed in Chinese Invention Patent Application Publication No. CN1402854A, Chinese Invention Patent Application Publication No. CN1535430A and Chinese Invention Patent Application Publication No. CN1851713A. [0003] To retrieve document images read as image data, it is necessary to manually assign information for retrieval to each ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/72G06F17/30
Inventor 窦建军乐宁吴波吴亚栋
Owner SHARP KK
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