Patent ID: 9536152
Date: 2017-01-03
CPC Classifications: G06K

Claim:
1. A method of providing annotated trajectories, the method comprising: receiving at least one image frame from a video camera of a mobile device, wherein the at least one image frame comprises at least one feature point; determining a location based on the at least one feature point of the at least one image frame; generating an annotation; associating the annotation with the location; determining that a second mobile device is nearby; determining that the second mobile device is associated with an entry of a contact in an address book of the mobile device; communicating with the second mobile device; generating a second annotation automatically as a new event based on the communication with the second mobile device, determining that a third annotation is associated with the location and an object in the at least one image frame; and displaying, on a display of the mobile device, a visual representation of the third annotation that overlays a portion of the at least one image frame, wherein determining the location based on the at least one feature point of the at least one image frame comprises: