Image analysis – Applications – Target tracking or detecting
Reexamination Certificate
2007-09-28
2010-12-28
Azarian, Seyed (Department: 2624)
Image analysis
Applications
Target tracking or detecting
C382S190000, C348S218100
Reexamination Certificate
active
07860273
ABSTRACT:
A position measurement device is provided that can precisely measure the photographing position or posture of a photographing device or the coordinates of an object based on sequentially changing photographed images. A position measuring device100of the invention comprises: an image acquisition section2for acquiring a series of photographed images changing continuously or little by little along with position displacement relative to an object to be photographed; a positional relationship measurement section9for measuring position displacement and posture change of the image acquisition section2; a feature extraction section3for extracting feature points from the photographed images obtained with the image acquisition section2; a feature point tracking section4for tracking the feature points by searching corresponding points corresponding to the feature points on a plurality of the photographed images; an image selection section61for selecting an image to be processed from the series of photographed images based on a measurement result made with the positional relationship measurement section9; and a position measurement section7for measuring the photographing position and the photographing posture of the image acquisition section2based on the image to be processed selected with the image selection section61.
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Anai Tetsuji
Kochi Nobuo
Otani Hitoshi
Sato Hirokazu
Azarian Seyed
Foley & Lardner LLP
Topcon Corporation
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