LUMINANCE MEASURING APPARATUS

摘要

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.

主权项

1. A luminance measuring apparatus for measuring luminance of a road comprising:
an image pickup unit that picks up an image of the road; an input unit that inputs information concerning the road as an imaging target; and a luminance measuring unit that generates a measurement range mask fitting to a road surface as an image target on the basis of information containing at least a setup interval of road lighting input from the input unit, defines a luminance measurement target field in an image as a processing target picked up with the image pickup unit by using the measurement range mask and measures luminance in the luminance measurement target field on the basis of the image, wherein the luminance measuring unit divides the luminance measurement target field of the pickup image into a grid having a predetermined number of lattice intersection points in an equivalent of plan view and allocates measurement points of luminance to the respective lattice intersection points.