Title:
METHOD AND DEVICE FOR IMAGE FILTERING
Document Type and Number:
WIPO Patent Application WO/2017/101489
Kind Code:
A1
Abstract:
Provided are a method and device for image filtering. The method comprises: superimposing each frame of image to be processed with multiple frames of consecutive images preceding the image to be processed, thus acquiring a fused image (101); with respect to each pixel in the fused image, calculating the average of pixel values of other pixels excluding the pixel in a first surrounding area of the pixel (102); when the difference between the pixel value of the pixel and the average of the pixel values corresponding thereto exceeds a preset range, updating the pixel value of the pixel to the average of the pixel values corresponding thereto, thus removing a low frequency noise (103); and spatially filtering the fused image having low frequency noises removed, thus removing high frequency noises, and acquiring a filtered image of the image to be processed (104). The present invention effectively implements image denoise filtering.
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Inventors:
BIAN ZHI (CN)
WEI WEI (CN)
BAI MAOSHENG (CN)
LIU YANG (CN)
WEI WEI (CN)
BAI MAOSHENG (CN)
LIU YANG (CN)
Application Number:
PCT/CN2016/096009
Publication Date:
June 22, 2017
Filing Date:
August 19, 2016
Export Citation:
Assignee:
LE HOLDINGS BEIJING CO LTD (CN)
LECLOUD COMPUTING CO LTD (CN)
LECLOUD COMPUTING CO LTD (CN)
International Classes:
G06T5/00; H04N5/21
Foreign References:
| CN102752483A | 2012-10-24 | |||
| CN103501401A | 2014-01-08 | |||
| CN104010114A | 2014-08-27 | |||
| CN104574301A | 2015-04-29 | |||
| US20020028025A1 | 2002-03-07 |
Attorney, Agent or Firm:
CHINABLE IP (CN)
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