发明名称 |
Method and system for signal processing using a sparse approximation of the S-transform |
摘要 |
The present invention relates to a method and system for processing time series signal data or image signal data indicative of a characteristic of an object. Received signal data are transformed into second signal data within a Stockwell domain based upon a sparse approximation of a S-transform of the signal data. The second signal data are then processed within the Stockwell domain to extract features therefrom. The processing includes determination of local spectra at predetermined locations; determination of voices at predetermined frequencies; and filtering of the signal data using a filter function in dependence upon frequency and time or space. The signal processing method and system according to the invention enables signal processing based on the S-transform using a desktop computer or workstation.
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申请公布号 |
US2007027657(A1) |
申请公布日期 |
2007.02.01 |
申请号 |
US20060442991 |
申请日期 |
2006.05.31 |
申请人 |
CALGARY SCIENTIFIC INC. |
发明人 |
PINNEGAR CHARLES R.;MITCHELL ROSS |
分类号 |
G06F15/00 |
主分类号 |
G06F15/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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