Patent ID: 8565528
Filing Date: 2013-10-22
Classification: G01C

Abstract:
1. An apparatus of a wireless communication system, the apparatus comprising: a transceiver configured to receive and transmit information wirelessly; and a processor communicatively coupled to the transceiver and configured to: access an image captured by an access terminal of the wireless communication system, a position of the access terminal, and a plurality of keypoints and a geographical location of each respective keypoint, each geographical location being a location near the position of the access terminal; identify a feature within the image; search the plurality of keypoints for the feature that is identified; and determine a magnetic deviation corresponding to the position of the access terminal by calculating a compass bearing and a true bearing to the feature within the image using the position of the access terminal and the geographical location of a keypoint, from the plurality of keypoints, determined as corresponding to the feature.