A Low-Complexity and Low Power Design of 2D-Median Filter
Takeaki Matsubara, Vasily G. Moshnyaga, Koji Hashimoto · ECTI Transactions on Computer and Information Technology (ECTI-CIT) · 1970
Impulse noise removal is a very important preprocessing operation in many computer vision applications. Usually it is accomplished by median filter with excessive sorting and therefore large power. This paper presents a new design of 2D median filter that utilizes a simple conditional filtering technique, executes fewer computations than related designs while achieving superior image quality. Experimental FPGA implementation of the proposed filtering scheme is compact, fast and low-power consuming.