A photo image retrieval system stores photo images and a text data, and extracts and displays any photo image using an input retrieval sentence as an index. A photo image database records photo images with information about image capture dates. A text database stores text data. A text data analysis unit...http://www.google.com.au/patents/US7584217?utm_source=gb-gplus-sharePatent US7584217 - Photo image retrieval system and program