GABOR WAVELET-FUSED MULTI-SCALE LOCAL LEVEL SET ULTRASONIC IMAGE SEGMENTATION METHOD
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United States of America Patent
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Mar 9, 2023
app pub date -
Oct 21, 2022
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Apr 23, 2020
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Disclosed is a Gabor wavelet-fused multi-scale local level set ultrasonic image segmentation method. In the method, non-uniformity of the grayscale of an ultrasonic image is taken as a texture having cluttered directions, the multi-directional property of Gabor wavelets is used to process the image, and intermediate images in different filtering directions are fused by taking maximum values, so as to obtain an intermediate image having a weakened texture effect and an enhanced difference between a foreground and a background. For the feature of a weak edge of an ultrasonic image, a concept of multi-scale is used to improve the conventional LIC method, Gaussian convolution kernels having different variances are set, and a final edge is obtained by means of average fusion.
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