Title:
DETECTION DEVICE, DETECTION METHOD, AND PROGRAM RECORDING MEDIUM
Document Type and Number:
WIPO Patent Application WO/2015/146111
Kind Code:
A1
Abstract:
In order to properly detect an outbreak of smoke using a photographic image, this detection device (100) is equipped with an extraction unit (10), a calculation unit (30), and a detection unit (40). By using an image analysis result of an input image, that is, a photographic image captured of a scene under surveillance, the extraction unit (10) generates an image for which a noise component is removed from the input image. By using brightness information contained in the generated image, the calculation unit (30) calculates an attenuation factor of reflected light from a photographed object in the input image. The detection unit (40) determines whether an outbreak of smoke is present in the scene under surveillance on the basis of the attenuation factor.
Inventors:
TSUKADA MASATO (JP)
TODA MASATO (JP)
SENZAKI KENTA (JP)
TODA MASATO (JP)
SENZAKI KENTA (JP)
Application Number:
PCT/JP2015/001592
Publication Date:
October 01, 2015
Filing Date:
March 20, 2015
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
G08B17/10; G01N21/27; G06T1/00; G06V10/30; G06V10/56; G06V10/60; G08B17/00; G08B17/103
Foreign References:
| JP2008046017A | 2008-02-28 | |||
| JP2014006911A | 2014-01-16 | |||
| JP2003099876A | 2003-04-04 |
Attorney, Agent or Firm:
SHIMOSAKA, NAOKI (JP)
Naoki Shimosaka (JP)
Naoki Shimosaka (JP)
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