Patent Document ID: 8280185
Application ID: 12147508
Patent Status: 1

Claim One:
1. An image denoising method comprising: decomposing an image signal into a wavelet domain using a discrete wavelet transform (DWT), wherein coefficients are grouped in sub-bands of different scales and orientations, including determining wavelet domain noise model and a non-parametric multivariate wavelet-description of an image; and determining a noise corrected image in the wavelet domain from the image signal, the wavelet-domain noise model and the non-parametric multivariate wavelet description including Gaussian filtering of probability density function applying a Bayesian multivariate minimum mean square error (MMSE) approximation using two-dimensional marginal projections of each given coefficient, the four nearest neighbors in a same sub-band of the given coefficient and a parent at the same pixel location and orientation in the next coarsest scale.