Patent ID: 11962811
Assignee: GOOGLE LLC
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 14:
15. A non-transitory computer readable medium storing instructions operable to cause one or more processors to perform operations for image denoising comprising:
obtaining a saliency map for an image, wherein the saliency map comprises respective saliency scores for pixels of the image, wherein the respective saliency scores are indicative of perceptual importance of the pixels relative to each other, and wherein the respective saliency scores are normalized to a range of [0, 1];
assigning respective noise levels to the pixels using the respective saliency scores to obtain a noise level map;
sorting the respective saliency scores of the noise level map to obtain a sorted list of saliency scores;
dividing the saliency scores of the sorted list of saliency scores into a predetermined number of saliency score groups;
generating groups of pixels corresponding to the saliency score groups,
assigning respective noise levels to the groups of pixels, wherein a respective noise level is assigned to each pixel of a group of pixels;
denoising the image using the noise level map to obtain a denoised image; and
outputting the denoised image.