Multiscale Thresholding Method With Quincunx Transform For Ultrasound Speckle Suppression

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F02%3APU30086" target="_blank" >RIV/00216305:26220/02:PU30086 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Multiscale Thresholding Method With Quincunx Transform For Ultrasound Speckle Suppression
Original language description
This contribution presents a speckle suppression method for medical ultrasound images. It consists of four steps. In the first step an original image is pre-processed with an adaptive median filter. This is the first part of the image, the second part isobtained by subtracting the first part from the original image. In the second step these two parts are transformed into a wavelet domain by a nonseparable wavelet transform using quincunx lattice. These two sets of coefficients are then processed by a ssoft thresholding method. In the last step the thresholded parts are transformed back into a space domain and finally they are added together. Speckle noise is reduced while sharp details are almost fully preserved.
Czech name
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Czech description
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Project
<a href="/en/project/GA102%2F02%2F0890" target="_blank" >GA102/02/0890: Analysis od medical ultrasonographic data aimed at 3D imaging in cardiology</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2002
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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