Abstract: Systems, methods and instructions for creating building models of physical structures is disclosed. The building model may be a collection of floors defined by outlines containing regions that may be offset relative to a main region, and a collection of connectors. Connectors may have connection points for tracking, routing and sizing. Connectors may indicate elevation changes through georeferenced structural features. Signal elements may also be features that provide corrections when tracking. Feature descriptors are data that describes the structural configuration and signal elements enabling them to be matched to previously collected data in a database. User interface elements assist a user of a tracking device in collecting floor information, structural features and signal features and validating certain collected information based on previously known information. The height of floors may also be inferred based on sensor data from the tracking device.

Abstract: A mobile video advertisement delivery system comprising: a vehicle locator system, a video advertisement storage system, a processor communicating with the vehicle locator system for determining a suitable time or place to display an advertisement, and a display communicating with the processor for displaying the advertisement at the suitable time or place. Preferably, the vehicle locator system includes a GPS system Preferably, the advertisement is stored at a location away from the vehicle and delivered via wireless or the advertisement may be stored on a storage medium, such as a hard disk, in the vehicle. Preferably, the system further includes a video surveillance system. Using the system, video advertisements maybe displayed on a public transportation vehicle, such as a bus, as the vehicle approaches an advertiser location.