Mohammad A Izadi

US Patent:

20210287341, Sep 16, 2021

Filed:

Dec 5, 2017

Appl. No.:

16/613945

Inventors:

- Mountain View CA, US
Mohammad Izadi - San Jose CA, US

International Classification:

G06T 5/00

Abstract:

A method for denoising video content includes identifying a first frame block of a plurality of frame blocks associated with a first frame of the video content. The method also includes determining an average intensity value for the first frame block. The method also includes determining a first noise model that represents characteristics of the first frame block. The method also includes generating a denoising function using the average intensity value and the first noise model for the first frame block. The method further includes denoising the plurality of frame blocks using the denoising function.

US Patent:

20180352118, Dec 6, 2018

Filed:

May 31, 2017

Appl. No.:

15/609826

Inventors:

- Mountain View CA, US
Mohammad Izadi - San Jose CA, US
Anil Kokaram - Dublin, IE
Damien Kelly - San Francisco CA, US

International Classification:

H04N 5/21

Abstract:

Implementations disclose mutual noise estimation for videos. A method includes determining an optimal frame noise variance for intensity values of each frame of frames of a video, the optimal frame noise variance based on a determined relationship between spatial variance and temporal variance of the intensity values of homogeneous blocks in the frame, identifying an optimal video noise variance for the video based on optimal frame noise variances of the frames of the video, selecting, for each frame of the video, one or more of the blocks having a spatial variance that is less than the optimal video noise variance, the one or more frames selected as the homogeneous blocks, and utilizing the selected homogeneous blocks to estimate a noise signal of the video.