Patent ID: 8611691

Claim:
A method for mitigating image distortions which comprises: enhancing a raw video stream, comprising static noise reduction; shaking/jitter compensation; dynamic noise reduction; and contrast enhancement; fusing said enhanced video stream using a lucky region fusion technique, comprising computing a fusion kernel size; determining quality metrics for regions of images in the enhanced video stream; determining quality metrics for regions of images of a previously fused video stream; computing anisotropic gain which performs a comparison of the image quality metrics for regions of images in the enhanced video stream, and regions of images in the previously fused video stream; selecting best image quality regions among the enhanced and the previously fused video stream; fusing the selected image regions into a new fused video stream; determining global image quality metrics of the new fused video stream; comparing the global quality metrics of the images in the new and the previously fused video streams; and updating an image in the new fused video stream only when the quality metrics are superior by a predetermined threshold; iteratively repeating the steps of enhancing and fusing, whereby a stream of fused images is generated; extracting random media characteristics from said stream of fused images automatically.