Oblon, McClelland, Maier & Neustadt, L.L.P.
Position measurement apparatus for measuring position of object having reflective surface in the three-dimensional space
A storage device stores capturing conditions including a viewpoint position and a shooting direction of the camera, model data including a shape of a segmented mirror, and feature point data representing a positional relationship among a viewpoint position and feature points. A camera captures the segmented mirror having a reflective surface to obtain a captured image including at least a part of the reflective surface. A marker object has feature points, and is fixed at a predetermined position with respect to the camera. A feature-point extracting unit extracts multiple feature points from a captured image in which the feature points are reflected in the reflective surface, and determines positions of the feature points within the captured image. A position measuring unit calculates a position of the segmented mirror, based on the capturing conditions, the model data, the feature point data, and the positions of the feature points within the captured image.
Mitsubishi Electric Corporation
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G01B H04N H04N G06T G06V G06T G06T
inventional inventional inventional inventional inventional additional inventional
Makito Yutaka Shintaro Satoru Yukiyasu
Seki Ezaki Watanabe Sofuku Domae