Patent ID: 8938105
Filing Date: 2015-01-20
Classification: G06T

Abstract:
1. A denoising method of preserving a clinically significant feature in reconstructed images, comprising the steps of: determining weight values for a reconstructed image, the reconstructed image having a time-variant time component and time-invariant space components, the time component having an initial time and a subsequent time, the reconstructed image at the initial time being defined as an initial reconstructed image while the reconstructed image at the subsequent time being defined as a subsequent reconstructed image; iteratively denoising the reconstructed image using an anisotropic diffusion filter to generate the subsequent reconstructed image as a diffused result; in each of said iterative denoising steps, adaptively weighting a difference between the initial reconstructed image and the subsequent reconstructed image according to a corresponding one of the weight values to generate an adaptively weighed result; and in each of said iterative denoising steps, adjusting the diffused result based upon the adaptively weighed result.