AUTOMATIC ABSOLUTE ORIENTATION AND POSITION

摘要

Methods of determining an absolute orientation and position of a mobile computing device are described for use in augmented reality applications, for instance. In one approach, the framework implemented herein detects known objects within a frame of a video feed. The video feed is captured in real time from a camera connected to a mobile computing device such as a smartphone or tablet computer, and location coordinates are associated with one or more known objects detected in the video feed. Based on the location coordinates of the known objects within the video frame, the user's position and orientation is triangulated with a high degree of precision.

主权项

1. A method of determining absolute position and orientation of a mobile computing device, comprising:
capturing a live video feed on the mobile computing device; detecting first, second, and third objects in one or more frames of the live video feed, wherein the first object is associated with a first set of location coordinates, the second object is associated with a second set of location coordinates, and the third object is associated with a third set of location coordinates and is non-collinear with the first and second objects; and determining said absolute position and orientation of the mobile computing device based on the set of location coordinates associated with the first, second, and third objects; and displaying an augmented reality overlay on a display screen of the mobile computing device, wherein one of a content and a position of the augmented reality overlay is based on the absolute position and orientation of the mobile computing device, and wherein said determining comprises:
determining an angle between the first object and the second object relative to a position of the mobile computing device; anddetermining an angle between the second object and the third object relative to a position of the mobile computing device.