Speckle noise filtering in ultrasound imaging
US5497777A · kind A · utility
136Cited by
9References
23Claims
0Family size
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Key dates
| Filing date | Sep 23, 1994 |
| Grant date | Mar 12, 1996 |
| Priority date | — |
| Expiry date | Sep 23, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/52046
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The enhancement of ultrasound images is provided through the filtering of signal dependent noise such as speckle noise by dividing the signal into selective subintervals and utilizing discrete wavelet transform and the identification and selection of those wavelet transform coefficients primarily including signal and not those primarily including signal dependent noise.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.