Kwang-Baek Kim Jae-Hyun Nam Am-suk Oh Data Reduction in Human Vision System. 9-12 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3320&spage=9 2004 conf/pdcat/2004 PDCAT db/conf/pdcat/pdcat2004.html#KimNO04