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US Patent 11263774 Three-dimensional position estimation device and program

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Patent abstractTimelineTable: Further ResourcesReferences
Is a
Patent
Patent
1

Patent attributes

Patent Applicant
Aisin Seiki
Aisin Seiki
1
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
1
Patent Number
112637741
Patent Inventor Names
Shu Asami1
Kazutaka Hayakawa1
Shoji Asai1
Date of Patent
March 1, 2022
1
Patent Application Number
167766691
Date Filed
January 30, 2020
1
Patent Citations
‌
US Patent 10515458 Image-matching navigation method and apparatus for aerial vehicles
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US Patent 10318010 Three dimensional (3D) modeling of a complex control object
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US Patent 11077845 Systems and methods for navigating a vehicle
Patent Primary Examiner
‌
Shefali D Goradia
1
Patent abstract

A three-dimensional position estimation device includes: a feature point detection unit detecting feature points from images captured by an image capturing device mounted in a moving object; a position-posture change amount calculation unit calculating change amounts of a position and a posture of the moving object; a feature point association unit associating feature points using a feature amount indicating a feature of the feature point; a three-dimensional position acquisition unit acquiring three-dimensional positions of the feature points and acquires a position and a posture of the image capturing device; a graph structure data generation unit generating graph structure data configured with feature point and image nodes, and a feature point and image capturing edges; an error function setting unit setting first and second error functions; and a graph structure data optimizing unit optimizing the three-dimensional position and the position and the posture of the image capturing device.

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