TY - GEN
T1 - Analog median filtering
AU - Paul, Steffen
AU - Hüper, Knut
AU - Nossek, Josef A.
N1 - Publisher Copyright:
© 1992 IEEE.
PY - 1992
Y1 - 1992
N2 - The basic nonlinear operation in median filtering is a sorting of the input data vector. This paper presents an analog structure for this filtering operation. The sorting operation is embedded in a matrix-valued ordinary differential equation (ODE). The data to be sorted serve as initial values for the ODE. To induce the dynamics of the system a small perturbation is necessary. The circuit structure for the analog median filter consists of basic processing cells containing multipliers, integrators and adders, arranged in an one-dimensional array. All connections are locally only and no external control is necessary.
AB - The basic nonlinear operation in median filtering is a sorting of the input data vector. This paper presents an analog structure for this filtering operation. The sorting operation is embedded in a matrix-valued ordinary differential equation (ODE). The data to be sorted serve as initial values for the ODE. To induce the dynamics of the system a small perturbation is necessary. The circuit structure for the analog median filter consists of basic processing cells containing multipliers, integrators and adders, arranged in an one-dimensional array. All connections are locally only and no external control is necessary.
UR - http://www.scopus.com/inward/record.url?scp=43049165386&partnerID=8YFLogxK
U2 - 10.1109/ICASSP.1992.226152
DO - 10.1109/ICASSP.1992.226152
M3 - Conference contribution
AN - SCOPUS:43049165386
T3 - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
SP - 557
EP - 560
BT - ICASSP 1992 - 1992 International Conference on Acoustics, Speech, and Signal Processing
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 1992 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 1992
Y2 - 23 March 1992 through 26 March 1992
ER -