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Tissue characterization using the continuous wavelet transform Part I: Decomposition method
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DOI：10.1109/58.911718.png)
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摘要
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In this paper, a novel decomposition of the RF ultrasound signal into its coherent and diffused component is proposed. This decomposition is based on thresholding the energy of the continuous wavelet transform of the RF signal using appropriate wavelets. The two components are modeled separately, and the model parameters are estimated. Previous work [1] required assumptions about the periodicity of the coherent scatterers in the tissue. These assumptions are not necessary in this work. The decomposition algorithm is tested on simulated RF images. The accuracy of the estimated parameters is presented as well as the performance of the algorithm in low coherent-to-diffuse components' energy ratios (SNR).
Keyword:
ULTRASOUND IMAGES
CLASSIFICATION
MICROSTRUCTURE
SCATTERING
ECHO
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