A new ultrasound despeckling method using spectrum equalization and quantum-inspired adaptive threshold
Publish place: Fifth International Conference on Quality Research in Electrical and Mechatronics Electrical Engineering
Publish Year: 1397
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
ELEMECHCONF05_106
تاریخ نمایه سازی: 21 خرداد 1398
Abstract:
An efficient despeckling method using a quantum-inspired adaptive threshold function is presented for reducing noise of ultrasound images. In the first step, the ultrasound image is decorrelated by an spectrum equalization procedure due to the fact that speckle noise is neither Gaussian nor white. In fact, a linear filter is exploited to flatten the power spectral density (PSD) of the ultrasound image. Then, the proposed method shrinks complex wavelet coefficients based on the quantum-inspired adaptive threshold function. The proposed approach has been used to denoise both real and simulated data sets and compare with other widely adopted techniques. Experimental results demonstrate that the proposed method has a competitive performance to remove speckle noise and can preserve details and textures of medical ultrasound images.
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Authors
Hamid Reza Shahdoosti
Department of Electrical Engineering, Hamedan University of Technology, Hamedan ۶۵۱۵۵, Iran