发明授权
US09395188B2 Method and system for location determination and navigation using structural visual information 有权
使用结构视觉信息进行位置确定和导航的方法和系统

Method and system for location determination and navigation using structural visual information
摘要:
Methods and systems for location determination using structural visual information may comprise receiving global navigation satellite system (GNSS) signals in a wireless device (WD) for determining a first position of the WD. One ore more images of a structure or structures near the WD may be captured and a position may be determined based on a comparison of the structures in the images to structures in a stored database. The database may be pre-stored based on a known future location of a user of the WD. The database may be downloaded and stored when insufficient GNSS signals are present. The database may comprise a plurality of images or may comprise video of structures. A distance from the structures may be determined based on known optical properties of a camera in the WD, and may be used to determine an accurate location based on the images.
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