The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 26, 2019
Filed:
Apr. 16, 2015
Institute of Automation Chinese Academy of Sciences, Beijing, CN;
Ruoshan Guo, Beijing, CN;
Lu Ye, Beijing, CN;
Rui Han, Beijing, CN;
Yang Luo, Beijing, CN;
Renjun Tang, Beijing, CN;
Fengli Yan, Beijing, CN;
Xiaoli Tang, Beijing, CN;
Institute of Automation Chinese Academy of Sciences, Beijing, CN;
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.