US Patent 9530251 Intelligent method of determining trigger items in augmented reality environments

The systems and methods may allow mobile computing devices to identify real world trigger items and to cause augmented reality scenarios associated with a real world trigger item to be presented on a display of the mobile computing device. A lookup scheme may identify indexed feature points of known candidate trigger items stored in a database. A number of evaluations occur between the indexed feature points to the feature points found in the real world trigger item. A determination that the feature points of a candidate trigger item matches the feature points of the real world trigger item is made when a confidence threshold is met or exceeded based on at least the look up scheme, weighted factor evaluation, variable threshold evaluation and potentially a geometric consistency evaluation to declare a positive match.