Invention Application
- Patent Title: Landmark Identification from Point Cloud Generated from Geographic Imagery Data
- Patent Title (中): 从地理图像数据生成的点云的地标识别
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Application No.: US14021222Application Date: 2013-09-09
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Publication No.: US20150073711A1Publication Date: 2015-03-12
- Inventor: Brian Edmond Brewington , Bryan M. Klingner , David Martin , Kirk L. Johnson
- Applicant: Google Inc.
- Applicant Address: US CA Mountain View
- Assignee: Google Inc.
- Current Assignee: Google Inc.
- Current Assignee Address: US CA Mountain View
- Main IPC: G01V11/00
- IPC: G01V11/00

Abstract:
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.
Public/Granted literature
- US09625612B2 Landmark identification from point cloud generated from geographic imagery data Public/Granted day:2017-04-18
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