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:
May. 16, 2006
Filed:
Nov. 11, 1999
Applicant:
Yau Wai Lucas Hui, Singapore, SG;
Inventor:
Yau Wai Lucas Hui, Singapore, SG;
Assignee:
STMicroelectronics Asia Pacific Pte Ltd., Singapore, SG;
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method and apparatus for noise level estimation in a digital video signal, the apparatus including a pixel activity detector that produces a mean pixel activity level for each picture in the video signal, a contrast analyzer that produces a contrast activity level for each picture and a noise level calculator that is coupled to the activity detector and contrast analyzer to produce an estimated noise level by offsetting the contrast activity level from accumulated output of the activity detector.