William D. Ferreira Díbio Leandro Borges Detecting and Ranking Saliency for Scene Description. 76-83 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3287&spage=76 2004 conf/ciarp/2004 CIARP db/conf/ciarp/ciarp2004.html#FerreiraB04