1. A method for assisting optical character recognition (OCR) of a street scene image using a mapping system database, the method comprising: determining a target GPS location for a street scene image using known GPS data associated with that street scene image; estimating a street address of the target GPS location; identifying a target address range based on the street address of the target GPS location; querying a mapping system database to identify a business name having a street address in the target address range; performing OCR of the street scene image to determine if key words associated with the identified business name are present; and in response to determining that at least one key word associated with the identified business name is present, determining an actual GPS location for the street address of that business name, based on the known GPS data.