Differentiator-type three-dimensional recursive ladder filters having frequency-planar- or frequency-beam-shaped passbands
Yuchen Zhang, Len T. Bruton · IEEE Transactions on Circuits and Systems for Video Technology · 1992
By exploring parallelism, novel three-dimensional (3-D) recursive ladder filter structures for implementing a class of 3-D frequency-planar and 3-D frequency-beam filters are developed. These structures use discrete differentiators and are suitable for high-speed real-time processing of video image sequences.>