专利名称：D-dimensional, fractional bandwidth signal processing apparatus
莱斯特大学>抄送格式发明人：James H. Arbeiter,Roger F. Bessler
communicator申请号：US08/151965
申请日：19931115
公开号：US05483474A
公开日：
detailview
19960109
dido>corpus
安静的英文
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摘要：Filtering apparatus responsive to a quence of samples of an input signal that is digitally-sampled at a given frequency, wherein the input signal defines information having at least one dimension. The apparatus includes first resampler for resampling the input-signal to derive a first signal at a first frequency which is substantially equal to the reciprocal 1/C of a given factor C times the given frequency, and cond resampler for resampling the first signal to derive a cond signal at a cond frequency which is substantially equal to the given factor C times the first frequency. The given factor C is an improper fraction having a least-common-denominator larger than one. This filtering apparatus is particularly suitable for variably spatially low- pass, high-pass, band- pass or hierarchical-pyramid filtering two- dimensional image information in each of its two-dimensions by amounts which are independent of one another.
申请人：NORTH SHORE LABORATORIES, INC.
代理人：George J. Seligsohn
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