ADAPTIVE VIDEO SPATIAL DOMAIN DE-NOISING METHOD AND APPARATUS

WIPO Patent Application WO/2017/016295

A1

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.

LIU YANG (CN)
WEI WEI (CN)
BAI MAOSHENG (CN)
CAI YANGANG (CN)
LI XINGYU (CN)

PCT/CN2016/083056

February 02, 2017

May 23, 2016

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LE HOLDINGS BEIJING CO LTD (CN)
LECLOUD COMPUTING CO LTD (CN)

H04N5/911

CN102281386A	2011-12-14
CN104735300A	2015-06-24
CN101658027A	2010-02-24
CN101742088A	2010-06-16
US20080118179A1	2008-05-22
US20070296871A1	2007-12-27
US20070182862A1	2007-08-09

CO-HORIZON INTELLECTUAL PROPERTY INC. (CN)

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