Title :
Comments on "Theoretical analysis of the max/median filter" by G.R. Arce and M. P. McLaughlin
Author :
Nieminen, A. ; Neuvo, Y.
Author_Institution :
Labs. de Traitement de Signaux, EPF, Lausanne, Switzerland
fDate :
5/1/1988 12:00:00 AM
Abstract :
In the original paper (ibid., vol.ASSP-35, no.1, p.60-9, Jan. 1987), an approach (the max/median filter) to remove noise from images without distorting geometrical information was introduced. The proposed filter structure, due to its asymmetrical nature, is able to preserve only the subtle signal structures that are larger in intensity than the local background level. The commenters suggest another filter structure that has the ability to preserve both positive and negative geometrical information with respect to the background level.<>
Keywords :
filtering and prediction theory; asymmetrical nature; filter structure; information preservation; max/median filter; negative geometrical information; positive geometrical information; Acoustic distortion; Equations; Image analysis; Information filtering; Information filters; Laboratories; Oceans; Signal processing; Speech processing; Systems engineering and theory;
Journal_Title :
Acoustics, Speech and Signal Processing, IEEE Transactions on
