An Improved Fault Tolerant Technique of Median Filter

Abstract

Acquisition noises in the digital image processing system basically made out of imprudent clamors, for example, hot and dead pixels, and for the most part expelled utilizing middle channels. The median filtering algorithm can be speedup by FPGA implementation. Configuration memory cells in SRAM based FPGAs are susceptible to radiation effects such as SEUs which leads to configuration memory bit flips and hence a protective measure is required for the proper operation of median filtering algorithm.The fault tolerant implementations of median filter provides a range for median value with which the calculated median value is checked and find out error if the median is out of the provided range. The main aim of the project is to fasten up the fault tolerant implementation of median filter in FPGAs by adding a few resources. Experimental results show that the proposed technique significantly reduces the latency of the fault tolerant median filtering process.