Title :
High sample rate array architectures for median filters
Author :
Chakrabarti, Chaitali
Author_Institution :
Dept. of Electr. Eng., Arizona State Univ., Tempe, AZ, USA
fDate :
3/1/1994 12:00:00 AM
Abstract :
Presents high sample rate semi-systolic array architectures for computing 1D and 2D nonrecursive and recursive median filters. A high sample rate is obtained by pipelining the computations in each processor. Although the nonrecursive filters are pipelined by placing latches in the feedforward paths, the recursive filters are restructured to create additional delays in the feedback paths, and then pipelined using the delays as latches
Keywords :
delays; digital filters; pipeline processing; systolic arrays; two-dimensional digital filters; 1D median filter; 2D median filters; delays; feedforward paths; high sample rate semisystolic array architectures; latches; nonrecursive median filters; pipelining; processor; recursive median filters; Added delay; Computer architecture; Digital filters; Feedback; Frequency; Information filtering; Information filters; Pipeline processing; Sorting; Systolic arrays;
Journal_Title :
Signal Processing, IEEE Transactions on