Invention Application
US20150324642A1 DETERMINING AN ORIENTATION OF A MOBILE DEVICE 有权
确定移动设备的方向

DETERMINING AN ORIENTATION OF A MOBILE DEVICE
Abstract:
Methods, systems, and devices are described for determining an orientation of a mobile device. One method includes capturing, at the mobile device, an image of at least one illuminated object defining an illuminated reference axis; determining a first angle between the illuminated reference axis and a device reference axis of the mobile device; determining a second angle between the illuminated reference axis and a common reference axis; estimating a third angle between the device reference axis and the common reference axis; and determining an orientation of the mobile device based at least in part on the first angle, the second angle, and the third angle.
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