Novel Hardware Implementation of Adaptive Median Filters

Zdenek Vasicek, Lukas Sekanina
2008 2008 11th IEEE Workshop on Design and Diagnostics of Electronic Circuits and Systems  
A new FPGA implementation for adaptive median filters is proposed. Adaptive median filters exhibit better filtering properties than standard median filters; however, their implementation cost is higher. Proposed architecture was optimized for throughput allowing 300M pixels to be filtered per second. The best performance/cost ratio exhibits the adaptive median filter which utilizes filtering window 7x7 pixels and can suppress shot noise with intensity up to 60%. In addition to filtering,
more » ... e median filters can be also used as detectors of corrupted pixels (detection statistics).
doi:10.1109/ddecs.2008.4538766 dblp:conf/ddecs/VasicekS08 fatcat:2cbc6jb3gjg2lpxo774lro24dm