发明名称 |
UPDATING MAP DATA FROM CAMERA IMAGES |
摘要 |
A method of updating map data entails capturing an image using a camera, determining a location of an object in the image, creating new map data to represent the object in the image, and updating a map database to include the new map data for the object in the image. This method may be implemented on a GPS-enabled wireless communications device having an onboard camera which can transmit the new map data to a map server for updating its map database. Determining the position of the object in the image relative to the wireless device may be accomplished using a rangefinder and compass, triangulation of multiple images of the object, or a stereoscopic camera. The accuracy of the GPS position fix may be improved by capturing images of recognizable objects for which location coordinates are available.
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申请公布号 |
CA2762743(A1) |
申请公布日期 |
2012.06.23 |
申请号 |
CA20112762743 |
申请日期 |
2011.12.23 |
申请人 |
RESEARCH IN MOTION LIMITED |
发明人 |
WENG, JIANFENG;JIN, XIN;STEER, DAVID G. |
分类号 |
G01C11/36;G01C3/32;G01S19/41 |
主分类号 |
G01C11/36 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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