Title:
GLOBAL MOTION ESTIMATION-BASED TIME-DOMAIN FILTERING METHOD AND DEVICE, AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2021/223127
Kind Code:
A1
Abstract:
A global motion estimation-based time-domain filtering method and apparatus, and a storage medium. Said method comprises: acquiring a current frame image photographed by a photographing device (S101); on the basis of global image mean histograms in row and column directions, performing global motion estimation on the current frame image by using a reference frame image by means of a local image optimal matching algorithm to obtain global motion vectors in the row and column directions (S102); using the global motion vectors in the row and column directions to offset the reference frame image to obtain the offset reference frame image, and determining a time-domain filtering coefficient (S103); and filtering the current frame image according to the offset reference frame image and the time-domain filtering coefficient to obtain the filtered current frame image (S104).
Inventors:
YANG LEI (CN)
ZHANG QINGTAO (CN)
ZHAO XINTAO (CN)
ZHANG QINGTAO (CN)
ZHAO XINTAO (CN)
Application Number:
PCT/CN2020/088846
Publication Date:
November 11, 2021
Filing Date:
May 06, 2020
Export Citation:
Assignee:
SZ DJI TECHNOLOGY CO LTD (CN)
International Classes:
H04N5/21
Foreign References:
| CN104202504A | 2014-12-10 | |||
| CN104735301A | 2015-06-24 | |||
| CN109743495A | 2019-05-10 | |||
| CN104717402A | 2015-06-17 | |||
| US20070070250A1 | 2007-03-29 |
Attorney, Agent or Firm:
SHENZHEN LIDAO INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
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