Title:
META-IMAGING METHOD AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/231139
Kind Code:
A1
Abstract:
A meta-imaging method and a meta-imaging system. The meta-imaging system comprises: a micro-lens array, which is placed near an image plane of an optical imaging system, wherein the size of the micro-lens array and a diffraction limit resolution corresponding to the system differ by not more than two orders of magnitude. Periodic mask patterns are plated on a surface of the micro-lens array by using each micro-lens as a period, so as to modulate an imaging light path. The size of the micro-lenses and masks cause aliasing to be generated in a frequency domain during the process of image collection of the meta-imaging system, such that high-frequency image information is modulated to a low-frequency part. A photoelectric sensor such as a CMOS or a CCD is placed near one focal length behind the micro-lens array. By means of a small micro-lens size, mask coding, image plane scanning, etc., in a meta-imaging system, a light field image which is finer and includes more high-frequency information is collected.
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Inventors:
GUO YUDUO (CN)
CAI YAWEN (CN)
GUO ZEQUN (CN)
CAI YAWEN (CN)
GUO ZEQUN (CN)
Application Number:
PCT/CN2022/103913
Publication Date:
December 07, 2023
Filing Date:
July 05, 2022
Export Citation:
Assignee:
META RETINA BEIJING TECH CO LTD (CN)
International Classes:
G02B3/00; G06T5/50
Foreign References:
| CN111258044A | 2020-06-09 | |||
| US20140263963A1 | 2014-09-18 | |||
| CN109541791A | 2019-03-29 | |||
| CN113484296A | 2021-10-08 | |||
| CN113568156A | 2021-10-29 | |||
| CN111182191A | 2020-05-19 | |||
| US20130050526A1 | 2013-02-28 |
Attorney, Agent or Firm:
TSINGYIHUA INTELLECTUAL PROPERTY LLC (CN)
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