公开(公告)号：US20180061015A1

公开(公告)日：2018-03-01

申请号：US15557085

申请日：2015-04-16

Applicant: Institute of Automation Chinese Academy of Sciences

Inventor： Ruoshan GUO ,  Lu YE ,  Rui HAN ,  Yang LUO ,  Renjun TANG ,  Fengli YAN ,  Tang XIAOLI

IPC: G06T5/00 ,  G06T5/20

CPC classification number: G06T5/002 ,  G06T5/20 ,  G06T2207/20182 ,  G06T2207/20208 ,  H04N5/21

Abstract: The present invention discloses a video denoising system based on noise correlation, said system comprises a unit for estimating correlation of noises of adjacent pixels, which receives input of the inter-frame difference and motion probability, and estimates correlation of noises of adjacent pixels according to correlation of inter-frame differences between adjacent pixels in a still region, and outputs a noise correlation coefficient; a maximum filtering weight adjusting unit, which adaptively adjusts the maximum weight for temporal filtering according to the noise correlation coefficient and outputs the maximum weight for temporal filtering; the maximum weight for temporal filtering can control the range of fluctuation of the temporal filtering weight and the difference between the denoising effects for different pixels. The system of the present invention can solve the problem of “speckle” noise occurred when the video noises have adjacent correlation in the conventional temporal denoising system for videos.