Title:
CROWN IDENTIFICATION DEVICE, IDENTIFICATION METHOD, PROGRAM, AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2019/181025
Kind Code:
A1
Abstract:
Provided is a system for identifying each crown of a fruit tree using airborne images. This crown identification device 40 comprises an identification reference determination unit 41 and a crown identification unit 42. The identification reference determination unit 41 comprises: a first image acquisition unit 411 for acquiring a first airborne image including a plurality of fruit trees in a defoliation period in a fruit tree field; a skeleton extraction unit 412 for extracting an entire crown skeleton including the plurality of fruit trees from the first airborne image through image processing; a peak extraction unit 413 for extracting a peak in the crown skeleton corresponding to each fruit tree; and an identification reference extraction unit 414 for extracting a minimum polygonal crown candidate region including all peaks as an identification reference for each fruit tree, and extracting the centroid from the crown candidate region as an identification reference for each fruit tree. The crown identification unit 42 comprises: a second image acquisition unit 421 for acquiring a second airborne image of the fruit tree field in the period for identifying the crowns, the second airborne image having the same scale as the first airborne image; an entire crown extraction unit 422 for extracting an entire crown image including the plurality of fruit trees from the second airborne image through image processing; and a crown identification unit 423 for collating the crown candidate region and the centroid as identification references with the entire crown image, and identifying a crown region of each fruit tree in the second airborne image.
Inventors:
SEKIYA KAZUKI (JP)
OCHIAI HIROAKI (JP)
NAGOSHI YURIKA (JP)
GUO WEI (JP)
MU YUE (JP)
HIRAFUJI MASAYUKI (JP)
NINOMIYA SEISHI (JP)
TAKATA DAISUKE (JP)
OCHIAI HIROAKI (JP)
NAGOSHI YURIKA (JP)
GUO WEI (JP)
MU YUE (JP)
HIRAFUJI MASAYUKI (JP)
NINOMIYA SEISHI (JP)
TAKATA DAISUKE (JP)
Application Number:
PCT/JP2018/037373
Publication Date:
September 26, 2019
Filing Date:
October 05, 2018
Export Citation:
Assignee:
NEC SOLUTION INNOVATORS LTD (JP)
UNIV TOKYO (JP)
UNIV TOKYO (JP)
International Classes:
A01G7/00; G01C11/04; G01N21/17; G06T7/00
Foreign References:
| JP2017169520A | 2017-09-28 | |||
| JP2011103098A | 2011-05-26 | |||
| JP2014100099A | 2014-06-05 | |||
| JP2016000024A | 2016-01-07 |
Attorney, Agent or Firm:
TSUJIMARU Koichiro et al. (JP)
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