Title:
輝度測定装置
Document Type and Number:
Japanese Patent JP5742753
Kind Code:
B2
Abstract:
The luminance measuring apparatus for measuring the luminance of a road has an image pickup unit for picking up an image of the road, an input unit for inputting information concerning the road as an imaging target, and a luminance measuring unit for defining a luminance measurement target field A on the basis of the information input from the input unit and measuring the luminance within the luminance measurement target field A on the basis of an image picked up by the image pickup unit. The luminance measuring unit divides the luminance measurement target field A of the pickup image into a grid having a predetermined number of lattice intersection points MP in an equivalent of plan view, and allocates measurement points of luminance to the respective lattice intersection points MP.
Inventors:
Tetsuji Yamada
Kosuke Oshima
Kosuke Oshima
Application Number:
JP2012049088A
Publication Date:
July 01, 2015
Filing Date:
March 06, 2012
Export Citation:
Assignee:
Iwasaki Electric Co., Ltd.
International Classes:
G01J1/42
Domestic Patent References:
| JP2017420A |
Attorney, Agent or Firm:
Patent Business Corporation Kushibuchi International Patent Office
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