United States Patent 10,127,640
Cauvin , et al. November 13, 2018
Method and device for reducing noise in a component of a picture
Abstract
The present principles relate to a method and a device for reducing noise in a component of a picture. The method includes obtaining a low-pass filtered component by low-pass filtering the component of the picture, for a current pixel in the component of the picture. For at least one current neighboring pixel of the current pixel, computing a distance, relative to the current neighboring pixel, between the value of the current pixel in the low-pass filtered component and the value of the current neighboring pixel in the low-pass filtered component. When the distances relative to the at least one neighboring pixels of the current pixel are lower than a first threshold, modifying the value of the current pixel in said component of the picture according to a linear combination of the value of the current pixel in the component of the picture and the value of the current pixel in the low-pass filtered component. Otherwise the value of the current pixel in the at least one component of the picture remains unchanged.
Inventors:
Cauvin; Laurent (Chevaigne, FR), Pouli; Tania (Le Rheu, FR), Poirier; Guillaume (Rennes, FR)
Applicant:
Name
City
State
Country
Type
THOMSON LICENSING
Issy les Moulineaux
N/A
FR
Assignee:
INTERDIGITAL VC HOLDINGS (Wilmington, DE)
Family ID:
1000003647859
Appl. No.:
15/424,840
Filed:
February 4, 2017
Prior Publication Data
Document Identifier
Publication Date
US 20170228854 A1 Aug 10, 2017
Foreign Application Priority Data
Feb 4, 2016 [EP] 16305120
Current U.S. Class: 1/1
Current CPC Class: G06T 5/002 (20130101); G06T 5/20 (20130101); G06T 2207/20204 (20130101); G06T 2207/20024 (20130101)
Current International Class: G06T 5/00 (20060101); G06T 5/20 (20060101)
PPP
"Intellectuals solve problems; geniuses prevent them." - Albert Einstein
