Title:
SYSTEM, DEVICE, METHOD AND PROGRAM FOR MEASUREMENT OF LEAF AREA INDEX
Document Type and Number:
WIPO Patent Application WO/2012/073507
Kind Code:
A1
Abstract:
This system for measurement of a leaf area index includes: a first light source for irradiating a plant to be measured with a first wavelength light; a second light source for irradiating the plant to be measured with a second wavelength light; and an imaging means which is arranged on the opposite side of the first light source and the second light source with respect to the plant to be measured, images the plant to be irradiated and measured and outputs a captured image. The system for measurement of a leaf area index calculates, on the basis of the captured image output from the imaging means, a first transmittance amount indicating the degree of transmittance of light when the plant to be measured is irradiated with the first wavelength light, and a second transmittance amount indicating the degree of transmittance of light when the plant to be measured is irradiated with the second wavelength light, and calculates a leaf area index on the basis of a difference between the calculated first transmittance amount and second transmittance amount.
Inventors:
ISHIYAMA RUI (JP)
Application Number:
PCT/JP2011/006701
Publication Date:
June 07, 2012
Filing Date:
November 30, 2011
Export Citation:
Assignee:
NEC CORP (JP)
ISHIYAMA RUI (JP)
ISHIYAMA RUI (JP)
International Classes:
G01N21/27; A01G7/00; G01B11/28
Domestic Patent References:
| WO2007069736A1 | 2007-06-21 |
Foreign References:
| JPS62165546U | 1987-10-21 | |||
| JP2005052045A | 2005-03-03 |
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, 1986, pages 33 - 39
ZHANG Y ET AL.: "Leaf chlorophyll content retrieval from airborne hyperspectral remote sensing imagery", REMOTE SENSING OF ENVIRONMENT, vol. 112, no. 7, 15 July 2008 (2008-07-15), pages 3234 - 3247
ZHANG Y ET AL.: "Leaf chlorophyll content retrieval from airborne hyperspectral remote sensing imagery", REMOTE SENSING OF ENVIRONMENT, vol. 112, no. 7, 15 July 2008 (2008-07-15), pages 3234 - 3247
Attorney, Agent or Firm:
IWAKABE, Fuyuki et al. (JP)
Rock face Fuyuki (JP)
Rock face Fuyuki (JP)
Download PDF:
Claims:
Previous Patent: STABLE SYNTHETIC INTERMEDIATE AND METHOD FOR MANUFACTURING SAME
Next Patent: METHOD FOR PRODUCING MALEATE USING WET CRYSTAL
Next Patent: METHOD FOR PRODUCING MALEATE USING WET CRYSTAL