Title:
META-IMAGING-BASED FUNDUS IMAGING METHOD AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/231044
Kind Code:
A1
Abstract:
A meta-imaging-based fundus imaging method and system. The method comprises: using light field imaging in combination with synchronous illumination to perform light field imaging of a fundus; extracting pixels at the same angle from the light field image and merging them into a single-view image, and finally obtaining a plurality of multi-view images with improved spatial sampling rates (S101); calculating an offset matrix for the multi-view images according to a pre-designed calculation strategy, and using the offset matrix to perform digital offset correction on the multi-view images (S102); and stitching and merging the corrected multi-view images to obtain a final imaging result of the fundus to be imaged (S103). Focusing on different areas of the fundus is completed by means of single shoots, and meanwhile, large-view and high-resolution imaging can be maintained, constraints between spatial resolution and angular resolution are removed, and multi-angle sampling is obtained while high spatial resolution is achieved.
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Inventors:
DAI QIONGHAI (CN)
WAN SEN (CN)
WU JIAMIN (CN)
WAN SEN (CN)
WU JIAMIN (CN)
Application Number:
PCT/CN2022/097144
Publication Date:
December 07, 2023
Filing Date:
June 06, 2022
Export Citation:
Assignee:
UNIV TSINGHUA (CN)
International Classes:
A61B3/12; A61B3/14
Foreign References:
| US20200029807A1 | 2020-01-30 | |||
| US20140347628A1 | 2014-11-27 | |||
| CN113487658A | 2021-10-08 | |||
| CN107007250A | 2017-08-04 | |||
| JP2014110825A | 2014-06-19 | |||
| US20140198298A1 | 2014-07-17 |
Attorney, Agent or Firm:
TSINGYIHUA INTELLECTUAL PROPERTY LLC (CN)
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