INFORMATION PROCESSING SYSTEM, INFORMATION PROCESSING METHOD, INFORMATION PROCESSING DEVICE, AND CONTROL METHOD AND CONTROL PROGRAM THEREFOR, AND COMMUNICATION TERMINAL, AND CONTROL METHOD AND CONTROL PROGRAM THEREFOR

Title:

Document Type and Number:

WIPO Patent Application WO/2013/115202

Kind Code:

A1

Abstract:

Provided is a technology for recognizing an object being searched for in an image in a video in real time. The present invention is characterized by involving the following: associating and storing an object being searched for, and m number of first local features comprising feature vectors having from 1 to i dimensions for each of the local regions of m number of feature points in an image of the object being searched for; extracting n number of feature points from an image in a captured video; generating n number of second local features comprising feature vectors having from 1 to j dimensions for each of the local regions of n number of feature points; selecting the number of dimensions (i) of the first local features or the number of dimensions (j) of the second local features, whichever is the smaller number of dimensions; and recognizing that the object being searched for is present in the image from the video when a prescribed proportion or more of the m number of first local features up to the selected number of dimensions is determined to correspond to the n number of second local features up to the selected number of dimensions.

Inventors:

NOMURA TOSHIYUKI (JP)
YAMADA AKIO (JP)
IWAMOTO KOTA (JP)
MASE RYOTA (JP)

Application Number:

PCT/JP2013/051953

Publication Date:

August 08, 2013

Filing Date:

January 30, 2013

Export Citation:

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Assignee:

NEC CORP (JP)
NOMURA TOSHIYUKI (JP)
YAMADA AKIO (JP)
IWAMOTO KOTA (JP)
MASE RYOTA (JP)

International Classes:

G06T7/00; G06F17/30

Foreign References:

JP2005222250A	2005-08-18
JP2011198130A	2011-10-06
JP2011008507A	2011-01-13
JP2005347905A	2005-12-15
JP2004151820A	2004-05-27
JP2008003753A	2008-01-10
JP2010277264A	2010-12-09

Other References:

HIRONOBU FUJIYOSHI: "Gradient-Based Feature Extraction : SIFT and HOG", IEICE TECHNICAL REPORT, vol. 107, no. 206, 27 August 2007 (2007-08-27), pages 211 - 224

Attorney, Agent or Firm:

INABA, Yoshiyuki et al. (JP)
Yoshiyuki Inaba (JP)

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