Title:
IMAGE MEASURING METHOD, SYSTEM, DEVICE, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2014/103181
Kind Code:
A1
Abstract:
An image measuring system comprises: a reflecting body (10) disposed near a plant (31) to be measured; a photographing means (21) for photographing the reflecting body (10) and outputting the photographed image; an image analyzing means (41) for detecting, in the photographed image, the area of the reflecting body (10) and acquiring the color information of the area; an absolute spectral irradiance distribution calculating means (42) for calculating, on the basis of the color information, the absolute spectral irradiance distribution, which is the distribution of the absolute values of the spectral irradiance in the area; a photon flux density calculating means (44) for calculating, on the basis of the absolute spectral irradiance distribution, the photon flux density; and a Leaf Area Index calculating means (45) for calculating, on the basis of the photon flux density, the Leaf Area Index.
Inventors:
SATO AKARI (JP)
Application Number:
PCT/JP2013/007079
Publication Date:
July 03, 2014
Filing Date:
December 03, 2013
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
G01N21/27; G06V10/145; G06V10/147; G06V10/25; G06V10/56; G06V10/60
Domestic Patent References:
| WO2012073519A1 | 2012-06-07 | |||
| WO2012073520A1 | 2012-06-07 | |||
| WO2012073507A1 | 2012-06-07 |
Foreign References:
| JP2011133451A | 2011-07-07 | |||
| JP2007171033A | 2007-07-05 |
Other References:
MASATOSHI AOKI ET AL.: "Remote sensing of chlorophyll content of leaf. II. Effective spectral reflection characteristics for evaluations of chlorophyll content and leaf area index of plant community", ENVIRONMENT CONTROL IN BIOLOGY, vol. 24, no. 1, 1986, pages 33 - 39
Attorney, Agent or Firm:
IWAKABE, Fuyuki et al. (JP)
Rock face Fuyuki (JP)
Rock face Fuyuki (JP)
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