Title:
SUPER-RESOLUTION FLOW FIELD RECONSTRUCTION METHOD AND DEVICE THEREOF
Document Type and Number:
WIPO Patent Application WO/2021/232867
Kind Code:
A1
Abstract:
Provided in the present application is a super-resolution flow field reconstruction method, comprising: superimposing multiple angiogram frames that respectively comprise images of multiple microbubbles within a time interval, so as to obtain a superimposed image of multiple angiographic trajectories comprising the multiple microbubbles; performing straight line fitting on the multiple angiographic trajectories respectively to obtain multiple angiographic trajectory straight lines of the multiple microbubbles; according to the direction and length of the angiographic trajectory straight lines of the multiple microbubbles and the number of superimposed frames and the frame rate of the multiple angiogram frames, determining the direction and speed of the instantaneous motion of the multiple microbubbles corresponding to the time interval; and reconstructing a super-resolution flow field according to the direction and speed of the instantaneous motion of the multiple microbubbles in different time intervals. The method avoids tracking and positioning multiple microbubbles that are in motion, overcomes the effect of microbubble motion artifacts, and the interference of microbubble positioning noise, and also improves the precision and efficiency of super-resolution flow field reconstruction.
Inventors:
YIN JINGYI (CN)
ZHANG JIABIN (CN)
ZHANG JUE (CN)
ZHANG JIABIN (CN)
ZHANG JUE (CN)
Application Number:
PCT/CN2021/077028
Publication Date:
November 25, 2021
Filing Date:
February 20, 2021
Export Citation:
Assignee:
NANJING TRANSCEND VIVOSCOPE BIO TECH CO LTD (CN)
International Classes:
A61B8/06
Domestic Patent References:
| WO2020081915A1 | 2020-04-23 |
Foreign References:
| CN111598782A | 2020-08-28 | |||
| CN107753062A | 2018-03-06 | |||
| CN107361791A | 2017-11-21 | |||
| CN109803588A | 2019-05-24 | |||
| US20080015440A1 | 2008-01-17 |
Other References:
WU, FAN ET AL.: "Image Processing Algorithm for Particle Trajectory Image and Reconstruction Study on Flow Field", JOURNAL OF EXPERIMENTS IN FLUID MECHANICS, vol. 33, no. 4, 31 August 2019 (2019-08-31), pages 100 - 107, XP055869618
Attorney, Agent or Firm:
BEIJING BRIGHT IP AGENCY CO., LTD. (CN)
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