Method and device for searching keywords based on image content

A keyword search and image content technology, which is applied in the field of search and positioning keywords, can solve the problems of low recognition rate and lack of verification measures, so as to achieve the effect of guaranteeing the effect, improving the accuracy and avoiding segmentation errors
CN101520783AInactive Publication Date: 2009-09-02FUJITSU LTD
6 Cites 17 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
FUJITSU LTD
Publication Date
2009-09-02
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention provides a method for searching keywords based on image content, and a device thereof. The device for searching keywords searches and locates an input keyword in an input file image and comprises a global matching unit, a checking unit and a filtering unit; wherein the global matching unit extracts a plurality of candidate keyword image areas from the file image, extracts the image characteristics of the plurality of candidate keyword image areas, and matches the image characteristics with the keyword so as to obtain a matching distance corresponding to the plurality of candidate keyword image areas; the checking unit carries out identification to the front N candidate keyword image areas with small matching distance and calculates the checking distance between an identification candidate and the keyword; the filtering unit calculates the combining distance of the matching distance and the checking distance and filters the candidate keyword image areas with large combining distance according to the combining distance.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a device and method for quickly and accurately searching and locating keywords from document images. More specifically, it relates to an apparatus and method for automatically and accurately searching and locating the positions of keywords from document images when a user inputs keywords of interest (for example, "Beijing", etc.). Background technique

[0002] A traditional method for locating keywords in a document image is usually implemented by using OCR (Optical Character Recognition, Optical Character Recognition) technology. In the traditional method of locating keywords, the document image is first segmented, and then the segmented single character area is recognized, the document image is converted into text, and keywords are searched in the recognized text for locating. For example, such a conventional device and method for locating keywords in a document image is disclosed in US patent application US6470336. [0003...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More