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Title:
SYSTEM FOR RETRIEVING DOCUMENTS USING CAPTURED IMAGES
Document Type and Number:
WIPO Patent Application WO/2015/159417
Kind Code:
A1
Abstract:
A document in which a drawing related to an object being imaged appears is retrieved with high accuracy. A partial image of a photograph or a drawing, for example, is acquired in advance from a document having a document structure. Local feature quantities are extracted from the acquired partial image. A document having a strong relationship to the object being imaged is retrieved by comparing local feature quantities acquired from a field-of-view image that has been captured, with the local feature quantities acquired from the partial image.

Inventors:
AKIRA NAOTO (JP)
Application Number:
PCT/JP2014/060997
Publication Date:
October 22, 2015
Filing Date:
April 18, 2014
Export Citation:
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Assignee:
HITACHI LTD (JP)
International Classes:
G06T1/00; G06T19/00
Foreign References:
JP2011227875A2011-11-10
JPH1091634A1998-04-10
JP2002108873A2002-04-12
JP2012128680A2012-07-05
JP2009301485A2009-12-24
JP2001101191A2001-04-13
JP2003122757A2003-04-25
Attorney, Agent or Firm:
INOUE Manabu et al. (JP)
Manabu Inoue (JP)
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