High-speed systolic ladder structures for multidimensional recursive digital filters

High-speed multidimensional (MD) digital filtering is very useful for real-time video signal processing such as video image coding, bandwidth compression, sampling rate conversion and the enhancement of television signals. We propose a multilevel approach for designing high-speed systolic ladder str...

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Bibliographic Details
Published in:IEEE transactions on signal processing 1996-04, Vol.44 (4), p.1048-1055
Main Authors: Xiaojian Liu, Bruton, L.T.
Format: Article
Language:English
Subjects:
Applied sciences
Bandwidth
Detection, estimation, filtering, equalization, prediction
Digital filters
Exact sciences and technology
Filtering
Image coding
Image sampling
Image storage
Information, signal and communications theory
Multidimensional signal processing
Multidimensional systems
Signal and communications theory
Signal, noise
Telecommunications and information theory
Video compression
Video signal processing
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Summary:High-speed multidimensional (MD) digital filtering is very useful for real-time video signal processing such as video image coding, bandwidth compression, sampling rate conversion and the enhancement of television signals. We propose a multilevel approach for designing high-speed systolic ladder structures for MD recursive digital filters. Based on appropriately selected 1-D filter structures for each filter dimension (or level), a large variety of MD systolic filter structures may be derived. In particular, we introduce a new 1-D filter structure that proves the most suitable structure in terms of a systolic ladder implementation, because it leads to MD ladder filter structures possessing such important properties as the shortest critical path (for filters without order augmentation), the canonic number of high-level storage registers (e.g., line and frame registers of images), and local interconnectivity.
ISSN:1053-587X
1941-0476
DOI:10.1109/78.492569