An Efficient Keyword Search over Photo Images within Mobile Smartphones

Nowadays, it is popular for users to take photos through mobile devices like smartphones. In order to help users to search lots of photos within their smartphones easily, this paper develops a mobile application software system supporting a keyword search feature over photos just like searching web pages in the Internet. When a user takes a photo, the system extracts its meta-data of date/time and GPS as well as its various annotations automatically (e.g., mailing address, place names, event names, weather, etc.). Based on the annotations, we implemented a keyword search function over photos in smartphones. With this system, users can easily search photos with keyword conditions, even though they don´t give any additional information.