MEASURING APPARATUS AND MEASURING PROGRAM

摘要

An apparatus includes: an acquiring unit configured to acquire a measured image including a cloud and a reference article; a specifying unit configured to specify a first area of the reference article in the measured image; a determining unit configured to determine whether or not the cloud exists on the near side of the reference article in the measured image; a position estimating unit configured to estimate the position of the cloud, if the cloud exists on the near side of the reference article, from a second area of the cloud in the measured image and the height and position of the reference article acquired from the information storage unit; an attenuation rate calculating unit configured to calculate a first luminance, which is a luminance of the second area of the measured image, and a second luminance, which is a luminance of the corresponding second area for the reference image acquired from the image storage unit, and calculating the attenuating rate of light from the first luminance and the second luminance; a density calculating unit configured to calculate a cloud density from the attenuation rate and the position of the cloud; and an output unit configured to output the position of the cloud and the cloud density.

主权项

1. A measuring apparatus comprising
an information storage unit configured to store a height and a position of a reference article; an image storage unit configured to store a reference image showing the reference article in a state having no cloud therearound; an acquiring unit configured to acquire a measured image including a cloud and the reference article; a specifying unit configured to specify a first area of the reference article in the measured image; a determining unit configured to determine whether or not the cloud exists on the near side of the reference article in the measured image; a position estimating unit configured to estimate the position of the cloud, if the cloud exists on the near side of the reference article, from a second area of the cloud in the measured image and the height and position of the reference article acquired from the information storage unit; an attenuation rate calculating unit configured to calculate a first luminance, which is a luminance of the second area of the measured image, and a second luminance, which is a luminance of the corresponding second area for the reference image acquired from the image storage unit, and calculating the attenuating rate of light from the first luminance and the second luminance; a density calculating unit configured to calculate a cloud density from the attenuation rate and the position of the cloud; and an output unit configured to output the position of the cloud and the cloud density.