Patent ID: 8818081
Filing Date: 2014-08-26
Classification: G06K,G06T

Abstract:
1. A computer-implemented method, comprising: prompting, using one or more computing devices, a user to capture video data at a location, the location being associated with navigation directions for the user; receiving, by the one or more computing devices, the captured video data including information representing visual orientation and positioning information associated with the captured video data; accessing, by the one or more computing devices, a stored data model representing a 3D geometry depicting objects associated with the location; detecting, by the one or more computing devices, one or more candidate change regions between corresponding images from the captured video data and projections of the 3D geometry, each candidate change region indicating corresponding area of visual difference in visual features of objects depicted in the captured video data and the projections; and when the one or more computing devices detect that a count of the one or more candidate change regions is below a threshold, updating the stored model data with at least part of the captured video data based on the visual orientation and positioning information associated with the video data.