Preservation of 2-D signal symmetries in quincunx filter-banks
DSpace at IIT Bombay
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Title |
Preservation of 2-D signal symmetries in quincunx filter-banks
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Creator |
PATWARDHAN, PG
GADRE, VM |
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Subject |
two dimensional
convolution computer simulation signal filtering and prediction |
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Description |
An important problem in the analysis of symmetric extension methods is to determine the conditions under which signal symmetries are preserved by the filtering (convolution) and downsampling operations. In this letter, we provide a complete characterization of four-fold two-dimensional signal symmetries viz. quadrantal symmetry, diagonal symmetry, and 90deg rotational symmetry. We then consider Quincunx filter-banks and determine the conditions under which the four-fold signal symmetries are preserved by the filtering and downsampling operations.
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Publisher |
IEEE
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Date |
2008-12-01T09:50:14Z
2011-11-25T16:15:47Z 2011-12-26T13:05:16Z 2011-12-27T05:51:35Z 2008-12-01T09:50:14Z 2011-11-25T16:15:47Z 2011-12-26T13:05:16Z 2011-12-27T05:51:35Z 2007 |
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Type |
Article
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Identifier |
IEEE Signal Processing Letters 14(1), 35-8
1070-9908 http://dx.doi.org/10.1109/LSP.2006.879833 http://hdl.handle.net/10054/215 http://dspace.library.iitb.ac.in/xmlui/handle/10054/215 |
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Language |
en_US
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