Title:
HIGH-SPEED AND HIGH-PRECISION SPECTRAL VIDEO SYSTEM FOR PHOTOGRAPHING FLAMES, AND METHOD
Document Type and Number:
WIPO Patent Application WO/2021/083163
Kind Code:
A1
Abstract:
Disclosed are a high-speed and high-precision spectral video system for photographing flames, and a method therefor. A light signal of a required wave band is obtained by means of filtering through a light filter module (1). A light-splitting module (2) divides the light signal from the light filter module (1) into two light beams that are the same, wherein the two light beams respectively enter a coded aperture module (3) and an RGB information collection module (6). The coded aperture module (3) performs sparse sampling on the light signal. A color dispersion module (4) performs color dispersion on the light signal and transmits same to a grayscale information collection module (5). A data reconstruction module (7) aligns and de-noises two signals from the grayscale information collection module (5) and the RGB information collection module (6), reconstructs the two signals using a bilateral filtering algorithm, and then provides a result to a display module (8) for storage and display. A video collection system uses, in a flame scenario, wide-and-narrow-spectral-band filters and corresponding masks, such that not only can spectral reconstruction under a low number of sampling points be performed in order to acquire a wide-bandwidth flame spectrum feature, but spectral reconstruction with a high number of sampling points can also be performed on a relatively narrow spectral band near a flame characteristic peak in order to acquire high-accuracy spectral data.
Inventors:
CAO XUN (CN)
LIU ZHENGYU (CN)
CHEN LINSEN (CN)
CAI LIJING (CN)
ZHANG YAN (CN)
WANG CHEN (CN)
LIU ZHENGYU (CN)
CHEN LINSEN (CN)
CAI LIJING (CN)
ZHANG YAN (CN)
WANG CHEN (CN)
Application Number:
PCT/CN2020/124191
Publication Date:
May 06, 2021
Filing Date:
October 28, 2020
Export Citation:
Assignee:
UNIV NANJING (CN)
International Classes:
H04N9/09; G01J3/28
Domestic Patent References:
| WO2018176493A1 | 2018-10-04 |
Foreign References:
| CN110793632A | 2020-02-14 | |||
| CN101609052A | 2009-12-23 | |||
| CN109682475A | 2019-04-26 | |||
| CN110017897A | 2019-07-16 | |||
| CN208171443U | 2018-11-30 | |||
| CN201293684Y | 2009-08-19 | |||
| CN103609102A | 2014-02-26 | |||
| CN103940511A | 2014-07-23 | |||
| EP3508828A1 | 2019-07-10 |
Other References:
CHENGUANG MA ET AL.: "Content-adaptive high-resolution hyperspectral video acquisition with a hybrid camera system", OPTICS LETTERS, vol. 39, no. 4, 15 February 2014 (2014-02-15), XP001587902, DOI: 10.1364/OL.39.000937
方晓静 (FANG, XIAOJING): "基于空间光调制器的高光谱成像系统的研究 (Research of Hyperspectral Imaging System Based on Spatial Light Modulator)", 中国优秀硕士论文全文数据库 信息科技辑 (ELECTRONIC TECHNOLOGY & INFORMATION SCIENCE, CHINA MASTER’S THESES FULL-TEXT DATABASE), no. 2, 15 February 2017 (2017-02-15)
方晓静 (FANG, XIAOJING): "基于空间光调制器的高光谱成像系统的研究 (Research of Hyperspectral Imaging System Based on Spatial Light Modulator)", 中国优秀硕士论文全文数据库 信息科技辑 (ELECTRONIC TECHNOLOGY & INFORMATION SCIENCE, CHINA MASTER’S THESES FULL-TEXT DATABASE), no. 2, 15 February 2017 (2017-02-15)
Attorney, Agent or Firm:
FADEDONGHENG LAW FIRM (CN)
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