Qianren Xu Mohamed Kamel Magdy M. A. Salama A Spatially Adaptive Filter Reducing Arc Stripe Noise for Sector Scan Medical Ultrasound Imaging. 25-32 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3212&spage=25 2004 conf/iciar/2004-2 ICIAR (2) db/conf/iciar/iciar2004-2.html#XuKS04a