Decoding with Embedded Denoising
Patent Information:
Filing Country: USA
Application No: 12/122163
Filing Date: 16 May 2008
Patent No: 8831111
Issue Date: 09 September 2014
 
Inventors:
Inventor 1: Prof. Oscar Chi Lim, AU
Inventor 2: Dr. Liwei, GUO
Inventor 3: Prof. Peter Hon Wah, WONG

Technology
Digital video sequences are always corrupted by noise in acquisition, recording and transmission processes. The presence of noise can dramatically degrade the subjective quality of video sequences. So denoising process is needed by nearly all practical video processing systems. This invention presents an innovative low-complexity denoising approach for video decoder. The proposed approach embeds a temporal linear minimum mean square error (LMMSE) estimator with video decoder, and the denoising filtering is reduced to simple operations on individual motion-compensated residue coefficients, so only marginal computation is introduced compared to regular video decoder-denoising system. As the proposed filter is a temporal LMMSE filter, its denoising capability is very promising, leading to significant performance improvement of video codec.
 
 
Potential Application   Advantage
- For use in VCD, DVD, HD-DVD, DVB, set-top boxes, MMS enabled cell phone/PDA/smart phone, camcorder, digital multimedia entertainment center, personal video recorder   1. low complexity for denoising
2. high subjective quality of decoded video
3. compatible with any hybrid video codec
     
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Contact information :
Ms Shirley Woo
(852) 2358 7918
cawoosw@ust.hk
HKUST R and D Corporation Ltd
http://rdc.ust.hk
(852) 2358 7917
ttcac@ust.hk
Technology Transfer Center
http://www.ttc.ust.hk/
   
香港九龍清水灣 香港科技大學
THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY, CLEAR WATER BAY, KOWLOON