04-08-2023 дата публикации
Номер: CN116542875A
Принадлежит:
The invention discloses a multi-filtering mammary gland ultrasound image denoising method based on fractional Fourier transform, which comprises the following steps: giving a degraded mammary gland ultrasound image, performing fractional Fourier transform on the degraded mammary gland ultrasound image to obtain fractional domain spectrograms of different orders, establishing a multi-filter bank fusing smooth filtering and sharpening filtering according to the characteristics of the fractional domain spectrograms, and denoising the mammary gland ultrasound image. And performing multi-filtering on the fractional domain spectrogram of each order to obtain a filtered image, and fusing the filtered images of all order channels to obtain a denoised mammary gland ultrasonic image. According to the method, different transformation orders are adopted in sequence, the two-dimensional fractional Fourier transformation form is used for processing the signals of the degraded mammary gland ultrasonic ...
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