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学者姓名：万玉红
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摘要 ：
全息术最初被设定为一种相干成像技术,通过物光和参考光干涉形成全息图,对全息图进行重建可以实现三维成像和物信息的获取。全息图记录过程要求物体上任意两点的光场具有空间互相干性,这一特性限制了全息术在非相干光领域的应用。空间非相干光的普遍存在和易获取等优点,使得非相干全息术的提出和发展具有重要意义。非相干全息术源于20世纪60年代Mertz和Young提出的菲涅耳波带片编码成像理论,是指在空间非相干光照明情形下利用某种编码孔径对图像进行变换,实现全息图记录和再现的技术。Lohmann把这一技术进一步发展为基于分波技巧的干涉成像技术(源于同一物点的物光和参考光相干涉),实现了非相干物体的波前再现,从而...
关键词 ：
互相关重建 互相关重建 三维成像 三维成像 数字全息 数字全息 非相干全息 非相干全息 成像系统 成像系统
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| GB/T 7714 | 万玉红 , 刘超 , 满天龙 et al. 非相干相关数字全息术:原理、发展及应用 [J]. | 激光与光电子学进展 , 2021 , 58 (18) : 126-149 . |
| MLA | 万玉红 et al. "非相干相关数字全息术:原理、发展及应用" . | 激光与光电子学进展 58 . 18 (2021) : 126-149 . |
| APA | 万玉红 , 刘超 , 满天龙 , 菅孟静 , 马腾 , 张沁 et al. 非相干相关数字全息术:原理、发展及应用 . | 激光与光电子学进展 , 2021 , 58 (18) , 126-149 . |
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摘要 ：
Fast and noise-suppressed incoherent coded aperture correlation holographic imaging is proposed, which is utilized by employing an annular sparse coded phase mask together with adaptive phase-filter cross-correlation reconstruction method. Thus the proposed technique here is coined as adaptive interferenceless coded aperture correlation holography (AI-COACH). In AI-COACH, an annular sparse coded phase mask is first designed and generated by the Gerchberg-Saxton algorithm for suppressing background noise during reconstruction. In order to demonstrate the three-dimensional and sectional imaging capabilities of the AI-COACH system, the imaging experiments of 3D objects are designed and implemented by dual-channel optical configuration. One resolution target is placed in the focal plane of the system as input plane and ensured Fourier transform configuration, which is employed as reference imaging plane, and moved the other resolution target to simulate different planes of a three-dimensional object. One point spread hologram (PSH) and multiple object-holograms without phase-shift at different axial positions are captured by single-exposure sequentially with the annular sparse CPMs. A complex-reconstruction method is developed to obtain adaptively high-quality reconstructed images by employing the cross-correlation of PSH and OH with optimized phase filter. The imaging performance of AI-COACH is investigated by imaging various type of objects. The research results show that AI-COACH is adaptive to different experimental conditions in the sense of autonomously finding optimal parameters during reconstruction procedure and possesses the advantages of fast and adaptive imaging with high-quality reconstructions. © 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement.
关键词 ：
Holograms Holograms Optical constants Optical constants Optics Optics
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| GB/T 7714 | Wan, Yuhong , Liu, Chao , Ma, Teng et al. Incoherent coded aperture correlation holographic imaging with fast adaptive and noise-suppressed reconstruction [J]. | Optics Express , 2021 , 29 (6) : 8064-8075 . |
| MLA | Wan, Yuhong et al. "Incoherent coded aperture correlation holographic imaging with fast adaptive and noise-suppressed reconstruction" . | Optics Express 29 . 6 (2021) : 8064-8075 . |
| APA | Wan, Yuhong , Liu, Chao , Ma, Teng , Qin, Yi , Lv, Sheng . Incoherent coded aperture correlation holographic imaging with fast adaptive and noise-suppressed reconstruction . | Optics Express , 2021 , 29 (6) , 8064-8075 . |
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摘要 ：
The compression of the ciphertext of a cryptosystem is desirable considering the dramatic increase in secure data transfer via Internet. In this paper, we propose a simple and universal scheme to compress and decompress the ciphertext of an optical cryptosystem by the aid of deep learning (DL). For compression, the ciphertext is first resized to a relatively small dimension by bilinear interpolation and thereafter condensed by the JPEG2000 standard. For decompression, a well-trained deep neural network (DNN) can be employed to perfectly recover the original ciphertext, in spite of the severe information loss suffered by the compressed file. In contrast with JPEG2000 and JPEG, our proposal can achieve a far smaller size of the compressed file (SCF) while offering comparable decompression quality. In addition, the SCF can be further reduced by compromising the quality of the recovered plaintext. It is also shown that the compression procedure can provide an additional security level, and this may offer new insight into the compressive encryption in optical cryptosystems. Both simulation and experimental results are presented to demonstrate the proposal.
关键词 ：
ciphertext compression ciphertext compression deep learning deep learning Optical security Optical security
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| GB/T 7714 | Qin, Yi , Wan, Yuhong , Wan, Shujia et al. Optical Compressive Encryption via Deep Learning [J]. | IEEE PHOTONICS JOURNAL , 2021 , 13 (4) . |
| MLA | Qin, Yi et al. "Optical Compressive Encryption via Deep Learning" . | IEEE PHOTONICS JOURNAL 13 . 4 (2021) . |
| APA | Qin, Yi , Wan, Yuhong , Wan, Shujia , Liu, Chao , Liu, Wei . Optical Compressive Encryption via Deep Learning . | IEEE PHOTONICS JOURNAL , 2021 , 13 (4) . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
Illumination properties in imaging system have profound influence on the imaging characteristics that is ultimately observed. Structured illumination has been applied widely to three-dimensional microscopic imaging for obtaining super-resolution and sectional imaging. It is obvious that optimized and adaptive structured illumination results in expected image. Three-dimensional structured illumination can be produced by interference of multi-beam which is diffracted from a certain grating. Focusing on structured-light formed by multi-beam interference,the effect of phase grating modulation parameters on the properties of structured-light pattern are investigated in this work. Both simulated and experimental results show that the phase grating has higher diffraction efficiency and the phase modulation parameter of the sinusoidal phase grating has direct impact on the distribution of the structured light pattern. When the phase modulation parameter is optimized, the maximum modulation of structured-light pattern in three-dimension is obtained. Then we simulated the imaging of Fresnel incoherent correlation holography with optimized 3D structured illumination, and presented the improved reconstruction images.
关键词 ：
Structured illumination Structured illumination Incoherent holography Incoherent holography modulation amplitude of phase grating modulation amplitude of phase grating Multi-beam interference Multi-beam interference three-dimensional imaging three-dimensional imaging
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| GB/T 7714 | Yan, Yutong , Wan, Yuhong , Yu, Hanbin et al. Investigation on Characteristics of Multi-beam Interference Pattern for 3D Structured-illumination Incoherent Holographic Imaging [C] . 2020 . |
| MLA | Yan, Yutong et al. "Investigation on Characteristics of Multi-beam Interference Pattern for 3D Structured-illumination Incoherent Holographic Imaging" . (2020) . |
| APA | Yan, Yutong , Wan, Yuhong , Yu, Hanbin , Liu, Chao , Qin, Yi . Investigation on Characteristics of Multi-beam Interference Pattern for 3D Structured-illumination Incoherent Holographic Imaging . (2020) . |
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摘要 ：
The only known approach that can break the diffractive-imaging-based encryption (DIBE) was proposed by Li and Shi in 2015. However, their approach works under the assumption that the phase distribution of the random phase masks (RPMs) is within [0, pi]. In other words, it is no longer effective when such requirement is not fulfilled. In this paper, we propose a universal method, referred to as learning-based chosen-plaintext attack (L-CPA), to break DIBE. The L-CPA enables one to recover the plaintext from the ciphertext by aid of a well-trained artificial neural network (ANN), regardless of the phase distribution of the RPMs. Furthermore, the proposal can be accomplished with no need of knowing the details of the optical arrangement of DIRE. To our best knowledge, this is the first paper that reveals the absolute insecurity of DIBE against CPA. Numerical simulations are presented to demonstrate the effectiveness and feasibility of the proposal.
关键词 ：
Artificial neural network Artificial neural network Chosen-plaintext attack Chosen-plaintext attack Diffractive-imaging-based encryption Diffractive-imaging-based encryption
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| GB/T 7714 | Qin, Yi , Wan, Yuhong , Gong, Qiong . Learning-based chosen-plaintext attack on diffractive-imaging-based encryption scheme [J]. | OPTICS AND LASERS IN ENGINEERING , 2020 , 127 . |
| MLA | Qin, Yi et al. "Learning-based chosen-plaintext attack on diffractive-imaging-based encryption scheme" . | OPTICS AND LASERS IN ENGINEERING 127 (2020) . |
| APA | Qin, Yi , Wan, Yuhong , Gong, Qiong . Learning-based chosen-plaintext attack on diffractive-imaging-based encryption scheme . | OPTICS AND LASERS IN ENGINEERING , 2020 , 127 . |
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摘要 ：
In this paper a novel, to the best of our knowledge, deep neural network (DNN), VUR-Net, is proposed to realize direct and accurate phase unwrapping. The VUR-Net employs a relatively large number of filters in each layer and adopts alternately two types of residual blocks throughout the network, distinguishing it from the previously reported ones. The proposed method enables the wrapped phase map to be unwrapped precisely without any preprocessing or postprocessing operations, even though the map has been degraded by various adverse factors, such as noise, undersampling, deforming, and so on. We compared the VUR-Net with another two state-of-the-art phase unwrapping DNNs, and the corresponding results manifest that our proposal markedly outperforms its counterparts in both accuracy and robustness. In addition, we also developed two new indices to evaluate the phase unwrapping. These indices are proved to be effective and powerful as good candidates for estimating the quality of phase unwrapping. (C) 2020 Optical Society of America
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| GB/T 7714 | Qin, Yi , Wan, Shujia , Wan, Yuhong et al. Direct and accurate phase unwrapping with deep neural network [J]. | APPLIED OPTICS , 2020 , 59 (24) : 7258-7267 . |
| MLA | Qin, Yi et al. "Direct and accurate phase unwrapping with deep neural network" . | APPLIED OPTICS 59 . 24 (2020) : 7258-7267 . |
| APA | Qin, Yi , Wan, Shujia , Wan, Yuhong , Weng, Jiawen , Liu, Wei , Gong, Qiong . Direct and accurate phase unwrapping with deep neural network . | APPLIED OPTICS , 2020 , 59 (24) , 7258-7267 . |
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摘要 ：
A modified nonlinear reconstruction technique with a noise modulation parameter is proposed for interferenceless coded aperture correlation holography (I-COACH), and thus the signal-to-noise ratio of a reconstructed image is improved without sacrifice of the field of view and temporal resolution of the system. In order to obtain the optimal reconstructed image, no-reference structural sharpness (NRSS) is introduced as the evaluation metric of reconstructed image quality during nonlinear reconstruction. On the other hand, the noise modulation function is built in order to analyze the effect of phase on noise when the amplitude of the point spread hologram and object hologram is unity of 1. Both the NRSS and noise modulation functions are combined with nonlinear reconstruction in I-COACH for improving imaging performance. The validities of the proposed method under different experimental conditions have been demonstrated by experiments. (C) 2020 Optical Society of America
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| GB/T 7714 | Liu, Chao , Man, Tianlong , Wan, Yuhong . Optimized reconstruction with noise suppression for interferenceless coded aperture correlation holography [J]. | APPLIED OPTICS , 2020 , 59 (6) : 1769-1774 . |
| MLA | Liu, Chao et al. "Optimized reconstruction with noise suppression for interferenceless coded aperture correlation holography" . | APPLIED OPTICS 59 . 6 (2020) : 1769-1774 . |
| APA | Liu, Chao , Man, Tianlong , Wan, Yuhong . Optimized reconstruction with noise suppression for interferenceless coded aperture correlation holography . | APPLIED OPTICS , 2020 , 59 (6) , 1769-1774 . |
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摘要 ：
发展了一种采用结构光照明提高自干涉数字全息成像系统轴向分辨率的方法,理论分析了结构光照明自干涉数字全息层析成像的原理,采用数值模拟和实验研究了结构光空间频率和样品轴向间距对系统层析成像特性的影响,给出了结构光照明模式下自干涉数字全息成像的结果。研究结果表明:结构光照明的自干涉数字全息系统层析成像能力得到了显著提升。
关键词 ：
结构光照明 结构光照明 自干涉 自干涉 全息 全息 分辨率 分辨率 层析成像 层析成像
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| GB/T 7714 | 宋舒杰 , 万玉红 , 韩影 et al. 结构光照明的自干涉数字全息层析成像 [J]. | 中国激光 , 2019 , 46 (05) : 398-404 . |
| MLA | 宋舒杰 et al. "结构光照明的自干涉数字全息层析成像" . | 中国激光 46 . 05 (2019) : 398-404 . |
| APA | 宋舒杰 , 万玉红 , 韩影 , 满天龙 . 结构光照明的自干涉数字全息层析成像 . | 中国激光 , 2019 , 46 (05) , 398-404 . |
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摘要 ：
Interferenceless coded aperture correlation holography (I-COACH) is an incoherent digital holography technique without two-wave interference. In the system of I-COACH, the information of the corresponding depth of a three-dimensional object is reconstructed by the cross-correlation operation between a point hologram (PSH) and an object hologram (OH). Because the I-COACH needs to combine multi-step phase-shift technique and image averaging technique to suppress the bias terms and background noise in reconstructed images, the image time resolution is poor. In order to suppress the bias terms and background noise, in this paper, we proposed an adaptive learning dictionary reconstruction (ALDR) method of I-COACH system by combing non-linear reconstruction technique and sparse representation theory. By using the nonlinear reconstruction image as the training data of the model, the K-means singular value decomposition (K-SVD) and orthogonal matching pursuit (OMP) algorithm are used to obtain a redundant adaptive learning dictionary for reconstructing image. The compression reconstruction is performed to achieve the adaptive noise-free reconstructed image in the I-COACH.
关键词 ：
adaptive learning dictionary adaptive learning dictionary I-COACH I-COACH K-SVD algorithm K-SVD algorithm OMP algorithm OMP algorithm sparse representation sparse representation
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| GB/T 7714 | Liu, Chao , Zia, Ali , Wan, Yuhong . Interferenceless coded aperture correlation holography (I-COACH) adaptive compression imaging [C] . 2019 . |
| MLA | Liu, Chao et al. "Interferenceless coded aperture correlation holography (I-COACH) adaptive compression imaging" . (2019) . |
| APA | Liu, Chao , Zia, Ali , Wan, Yuhong . Interferenceless coded aperture correlation holography (I-COACH) adaptive compression imaging . (2019) . |
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摘要 ：
The self-interference digital holographic imaging system with structured light illumination is developed to improve the axial imaging resolution and its basic principle is demonstrated. The numerical simulation and experiment are conducted to investigate the effects of the spatial frequency of the structured light and the axial distance of the sample on the tomographic imaging performances of the system. The results show that self-interference digital holographic imaging under structured light illumination can considerably improve the tomographic imaging capability. © 2019, Chinese Lasers Press. All right reserved.
关键词 ：
Holography Holography Image resolution Image resolution Optical resolving power Optical resolving power Tomography Tomography
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| GB/T 7714 | Song, Shujie , Wan, Yuhong , Han, Ying et al. Self-Interference Digital Holography with Structured Light Illumination for Tomographic Imaging [J]. | Chinese Journal of Lasers , 2019 , 46 (5) . |
| MLA | Song, Shujie et al. "Self-Interference Digital Holography with Structured Light Illumination for Tomographic Imaging" . | Chinese Journal of Lasers 46 . 5 (2019) . |
| APA | Song, Shujie , Wan, Yuhong , Han, Ying , Man, Tianlong . Self-Interference Digital Holography with Structured Light Illumination for Tomographic Imaging . | Chinese Journal of Lasers , 2019 , 46 (5) . |
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