Rate control and video denoising for noisy video data
US8982947B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 21, 2008 |
| Grant date | Mar 17, 2015 |
| Priority date | — |
| Expiry date | Jul 19, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and a computer-readable medium containing computer program for simultaneously performing rate control and video denoising for video corrupted by noise are presented. Video data includes original video data and noise data. A variance of the noise data for each macroblock within a frame is estimated. Based on the estimated noise variance, a low bound quantization parameter is generated. The video data are reconstructed such that the distortion between the original video data and reconstructed video data is minimized over each macroblock within a frame. The minimization of the distortion between the original video and reconstructed video data is implemented using a quantization parameter that is equal to or larger than the low bound quantization parameter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.