Landmark identification from point cloud generated from geographic imagery data

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United States of America Patent

PATENT NO 9625612
SERIAL NO

14021222

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Abstract

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Systems and methods for identifying prominent landmarks in a geographic area are provided. More particularly, geographic imagery data, such as panoramic images captured by a camera from a perspective at or near ground level, can be analyzed to identify landmarks depicted in the geographic imagery data. For instance, structure-from-motion techniques can be used to generate a point cloud of tracked features that are located a threshold distance away from one or more camera perspectives associated with the geographic imagery data. Landmarks that are visible from multiple camera perspectives and that are visible from greater distances relative to one or more camera perspectives can be identified as prominent landmarks in a geographic area. A geographic information system can use the prominent landmarks for a variety of purposes, such as for use in providing travel directions, for rendering landmarks in an emphasized style, and/or for constructing/displaying a three-dimensional model of the landmark.

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Patent Owner(s)

  • GOOGLE LLC

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Brewington, Brian Edmond Fort Collins, US 25 211
Johnson, Kirk L Boulder, US 26 1491
Klingner, Bryan M Austin, US 5 42
Martin, David Oakland, US 231 3359

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