Patent ID: 9014464
Filing Date: 2015-04-21
Classification: G01B

Abstract:
1. A measurement device comprising: a processor for executing computer-executable components, the computer-executable components including: a display controller configured to display a first image from among a plurality of images captured from different viewpoints on a display unit; a setting unit configured to set a measurement position on the first image; a first calculator configured to calculate a correspondence position, which corresponds to the measurement position, on a second image other than the first image from among the plurality of images; a second calculator configured to calculate a three-dimensional position of the measurement position and an error in the three-dimensional position using the first image, the measurement position, the second image, and the correspondence position; and a selection unit configured to determine, each time the three-dimensional position and the error are calculated by the second calculation unit, whether or not there is an image pair, in which an error in the three-dimensional position becomes smaller than the error calculated by the second calculator, from among image pairs of the plurality of images, and further configured to, when there is the image pair, select the image pair, but when there is no image pair, decide on the three-dimensional position, wherein, each time the image pair is selected by the selection unit, the second calculator calculates a new three-dimensional position of the measurement position and an error using a new first image included in the image pair, a first projection position where the three-dimensional position is projected onto the new first image, a new second image included in the image pair, and a second projection position where the three-dimensional position is projected onto the new second image.