BEMD Based Cross Bilateral Filtering Technique for Speckle Reduction in Ultrasound Images

In this paper, Bidimensional Empirical Mode Decomposition (BEMD) based Cross Bilateral Filter (CBF) technique for speckle reduction in ultrasound images has been proposed. The reference image is obtained by denoising the noisy using pixel-wise Wiener filtering. Then, both and are decomposed into a set of Intrinsic Functions (IMFs) residue BEMD technique. CBF applied between IMFs corresponding IMFs. reconstructed back with these modified residue. proposed method exploits edge information improving quality denoised image. performance tested real simulated having noise different variance. experimental results show that algorithm performs better than other state-of-art methods terms Edge Keeping Index (EKI), Correlation Coefficient (CC), Figure Merit (FOM), Structural Similarity (SSIM), Peak Signal to Noise Ratio (PSNR) (SNR) synthetic images. gives Mean Variance (MVR) Equivalent Number Looks (ENL).