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1. (WO2017016295) ADAPTIVE VIDEO SPATIAL DOMAIN DE-NOISING METHOD AND APPARATUS

Pub. No.:    WO/2017/016295    International Application No.:    PCT/CN2016/083056
Publication Date: Fri Feb 03 00:59:59 CET 2017 International Filing Date: Tue May 24 01:59:59 CEST 2016
IPC: H04N 5/911
Applicants: LE HOLDINGS (BEIJING) CO., LTD.
乐视控股(北京)有限公司
LECLOUD COMPUTING CO., LTD.
乐视云计算有限公司
Inventors: LIU, Yang
刘阳
WEI, Wei
魏伟
BAI, Maosheng
白茂生
CAI, Yangang
蔡砚刚
LI, Xingyu
李兴玉
Title: ADAPTIVE VIDEO SPATIAL DOMAIN DE-NOISING METHOD AND APPARATUS
Abstract:
Embodiments of the present invention provide an adaptive video spatial domain de-noising method. By acquiring pixel values of all pixel points at the same position in a current frame and an adjacent previous frame respectively, noise intensity of a current pixel point is calculated. Pixel values of adjacent pixel points at the upper side, lower side, left side and right side of the current pixel point in the current frame respectively, de-noising weights of the current pixel point and the adjacent pixel points at the upper side, the lower side, the left side, and the right side are calculated according to the noise intensity, the pixel value of the current pixel point, and the pixel values of the adjacent pixel points at the upper side, the lower side, the left side, and the right side, and the pixel value of the current pixel point is replaced with a value obtained by weighted averaging, so as to achieve adaptive spatial domain de-noising of the current pixel point, and retain picture details to the greatest extent while de-noising.