基于符合計(jì)數(shù)濾波優(yōu)化的光量子成像方法

周牧; 嵇長銀; 謝良波; 曹靜陽; 聶偉

doi:10.11999/JEIT220627

基于符合計(jì)數(shù)濾波優(yōu)化的光量子成像方法

doi: 10.11999/JEIT220627

1.
重慶郵電大學(xué)通信與信息工程學(xué)院重慶 400065
2.
移動(dòng)通信教育部工程研究中心重慶 400065

基金項(xiàng)目: 國家自然科學(xué)基金(61901076)，重慶市教委科學(xué)技術(shù)研究項(xiàng)目(KJZD-K202000605, KJQN202000630)，重慶市技術(shù)創(chuàng)新與應(yīng)用發(fā)展專項(xiàng)(S2022-02N)，重慶市自然科學(xué)基金(CSTB2022NSCQ-MSX0895)，重慶市研究生科研創(chuàng)新項(xiàng)目(CYS21298)

詳細(xì)信息

作者簡介:
周牧：男，教授、博士生導(dǎo)師，研究方向?yàn)榱孔泳軠y量、無線定位與感知、多源信息融合與機(jī)器學(xué)習(xí)等

嵇長銀：男，碩士生，研究方向?yàn)榱孔映上?、濾波優(yōu)化

謝良波：男，副教授、碩士生導(dǎo)師，研究方向?yàn)榱孔泳軠y量、射頻識(shí)別定位等

曹靜陽：女，博士生，研究方向?yàn)榱孔映上?、壓縮感知等

聶偉：男，講師，碩士生導(dǎo)師，研究方向?yàn)榱孔泳軠y量、射頻指紋等

通訊作者:
周牧　zhoumu@cqupt.edu.cn

中圖分類號(hào): TN911.74
計(jì)量
- 文章訪問數(shù): 425
- HTML全文瀏覽量: 269
- PDF下載量: 67
- 被引次數(shù): 0
出版歷程
- 收稿日期: 2022-05-17
- 修回日期: 2022-11-14
- 網(wǎng)絡(luò)出版日期: 2022-11-18
- 刊出日期: 2023-06-10

Optical Quantum Imaging Method Based on Filter Optimization of Coincidence Counting

1.
School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
2.
Engineering Research Center of Mobile Communications, Ministry of Education, Chongqing 400065, China

Funds: The National Natural Science Foundation of China (61901076), The Science and Technology Research Program of Chongqing Municipal Education Commission (KJZD-K202000605, KJQN202000630), The Chongqing Technology Innovation and Application Development Special Project (S2022-02N), The Chongqing Natural Science Foundation Project (CSTB2022NSCQ-MSX0895), The Postgraduate Scientific Research and Innovation Project of Chongqing (CYS21298)

摘要

摘要: 量子成像(QI)具有抗偵察、抗干擾和高分辨力等特性，是量子光學(xué)領(lǐng)域重要的研究方向。為了解決實(shí)際量子成像過程中因環(huán)境光引起符合計(jì)數(shù)值異常所導(dǎo)致成像質(zhì)量下降的問題，該文提出一種基于符合計(jì)數(shù)濾波優(yōu)化的光量子成像方法。首先，對原始的符合計(jì)數(shù)值進(jìn)行3層離散小波變換(DWT)得到相應(yīng)的小波系數(shù)；然后，對小波系數(shù)中的高頻成分進(jìn)行高斯濾波去噪，并通過小波逆變換得到去噪后的符合計(jì)數(shù)值；最后，基于該符合計(jì)數(shù)值，利用線性映射方法實(shí)現(xiàn)對目標(biāo)的量子成像。該文通過仿真分析了圖像像素?cái)?shù)、單像素曝光時(shí)間和符合門寬值對成像結(jié)果的影響，并搭建了實(shí)際的量子成像光路來驗(yàn)證仿真結(jié)果的有效性。
- 量子成像 /
- 符合計(jì)數(shù) /
- 小波變換 /
- 高斯濾波 /
- 數(shù)字微鏡器件
Abstract: Quantum Imaging(QI) is an important research direction in the field of quantum optics due to its anti-reconnaissance, anti-interference and high resolution. In order to solve the problem of image quality degradation caused by the abnormal coincidence count value caused by ambient light in the actual quantum imaging process, a photon quantum imaging method based on coincidence count filter optimization is proposed in this paper. Firstly, three-layer Discrete Wavelet Transform(DWT) on the original coincident count values is performed to obtain the corresponding wavelet coefficients. Secondly, Gaussian filtering is performed to denoise the high-frequency components in the wavelet coefficients, and the denoised coincident count values through inverse wavelet transform is obtained in this paper. Finally, according to these coincidence count values, the linear mapping method is used to achieve quantum imaging of the target. In this paper, the influence of image pixel number, single pixel exposure time and coincidence gate width on imaging results by simulation are analyzed, and the actual quantum imaging optical path is built to verify the validity of the simulation analysis.
- Quantum Imaging(QI) /
- Coincidence counting /
- Wavelet transform /
- Gaussian filtering /
- Digital Micromirror Device(DMD)

HTML全文

圖 1 成像光路圖

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圖 2 2維DWT分解及重構(gòu)

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圖 3 符合計(jì)數(shù)值的分布變化

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圖 4 SPET值變化對成像結(jié)果的影響

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圖 5 W值變化對成像結(jié)果的影響

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圖 6 SPET值和W值變化對成像結(jié)果的影響

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圖 7 不同去噪方法的性能指標(biāo)

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圖 8 不同去噪對象下的性能指標(biāo)

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表 1 不同圖像像素?cái)?shù)對成像結(jié)果的影響

$ 200 \times 200 $ $ 400 \times 400 $ $ 600 \times 600 $ $ 800 \times 800 $ $1\;000 \times 1\;000$

去噪前
去噪后

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表 2 不同圖像像素?cái)?shù)下的成像結(jié)果

$8 \times 8$ $14 \times 14$ $20 \times 20$

去噪前
去噪前

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表 3 不同單像素曝光時(shí)間(SPET)下的成像結(jié)果

0.5 s 1.5 s 2.5 s

去噪前
去噪后

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表 4 不同符合門寬值(W)下的成像結(jié)果

15 ps 30 ps 45 ps

去噪前
去噪后

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參考文獻(xiàn)(12)

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