ISPRS 2008 : Proceedings of the XXI congress : Silk road for information from imagery : the International Society for Photogrammetry and Remote Sensing, 3-11 July, Beijing, China. Comm. VIII, WG VIII/11. Beijing : ISPRS, 2008. pp. 1039-1045, 1039-1045 STARTPAGE=1039;ENDPAGE=1045;TITLE=ISPRS 2008 : Proceedings of the XXI congress : Silk road for information from imagery : the International Society for Photogrammetry and Remote Sensing, 3-11 July, Beijing, China. Comm. VIII, WG VIII/11. Beijing : ISPRS, 2008. pp. 1039-1045