Sittisak Rodtook Stanislav S. Makhanov Rotationally invariant filter bank for pattern recognition of noisy images. 71-82 2006 17 Journal of Intelligent and Fuzzy Systems 1 http://iospress.metapress.com/openurl.asp?genre=article&issn=1064-1246&volume=17&issue=1&spage=71 db/journals/jifs/jifs17.html#RodtookM06