Article
Optics
Rui Zhang, Wenyi Ren, Zhilong Xu, He Wang, Jiangang Jiang, Yuanyuan Wang, Xibo Luo
Summary: This paper proposes a single pixel echelle spectrometer system based on compressed sensing theory. The system utilizes Digital Micromirror Devices as the Coding board and high sensitivity photomultiplier point detector as the signal receiver. The optical system is designed according to the structural characteristics of the system, achieving 70% energy concentration in the spot of a single micro mirror. Furthermore, the spectral information reconstruction algorithm is studied, where the original two-dimensional spectrum can be reconstructed with a compression factor of 20% and transformed into the required one-dimensional spectrum through a spectrum reduction algorithm.
Article
Multidisciplinary Sciences
Yuning Guo, Baowen Li, Xiaobo Yin
Summary: This study proposes a dual-compressed photoacoustic imaging method with single-pixel detection, which enables high-efficiency surface tomography with 3D spatial resolution unlimited by the acoustics, revealing the potential for dynamic imaging in a scattering medium.
NATIONAL SCIENCE REVIEW
(2023)
Article
Engineering, Electrical & Electronic
Maryam Abedi, Bing Sun, Zheng Zheng
Summary: Compressive sensing aims to achieve high fidelity image recovery with a low number of measurements using an encoding scheme based on filtering the scene. The structured measurement matrix formed by the encoding patterns, which are linearly independent vectors, allows relatively well-conditioned dictionaries to be created using different sparsifying bases.
Article
Biochemical Research Methods
Mengyu Jia, Lequan Yu, Wenxing Bai, Pengfei Zhang, Limin Zhang, Wei Wang, Feng Gao
Summary: In this study, a deep compressive sensing framework is proposed for image reconstruction in single-pixel imaging (SPI), addressing the challenges of spectrum truncation and discretization effects. A novel compression network is introduced to achieve collaborative sparsity in a discretized feature space and maintain coherence with the sensing basis. The method is trained in an unsupervised manner, mitigating the limitations of supervised training and showcasing promising results in validation experiments.
JOURNAL OF BIOPHOTONICS
(2022)
Article
Engineering, Electrical & Electronic
Zhenyong Shin, Horng Sheng Lin, Tong-Yuen Chai, Xin Wang, Sing Yee Chua
Summary: The single-pixel camera is developed to address the limitations faced by conventional cameras in invisible wavelengths and low light conditions, proposing a new method that utilizes compressive sensing technology and spatially variant resolution to optimize image reconstruction. Results show that SVR images can be reconstructed from fewer measurements and achieve better image quality compared to uniform resolution images.
JOURNAL OF ELECTRONIC IMAGING
(2021)
Article
Engineering, Electrical & Electronic
Lei Gao, Wenjing Zhao, Aiping Zhai, Dong Wang
Summary: In this study, we propose a method called OAM-basis spatial wavefront single-pixel imaging via compressed sensing for high-quality spatial wavefront reconstruction. We use orbital angular momentum (OAM) beams as the complex-number basis for measurement and employ the TVAL3 compressed sensing algorithm for wavefront reconstruction, which is a first-time achievement to the best of our knowledge. Simulation and experiment results show that our method outperforms the existing second-order correlation method and provides a promising technique for high-quality wavefront reconstruction based on a complex-number basis. It may have applications in optical communication, optical detection and imaging, optical information processing and encryption, and other related fields.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2023)
Article
Optics
Zhuang Zhao, Ziqi Yu, Haocun Qi, Jing Han, Yi Zhang, Lianfa Bai, Fengchao Xiong
Summary: This paper proposes a redundant compressed single-pixel hyperspectral imaging system (RCSHI), which takes advantage of the spectral redundancy of hyperspectral images by jointly reconstructing images from different bands and compressing the spectral dimension of the data. RCSHI reduces the amount of redundant information stacking and the number of parameters needed for reconstruction, and uses progressive fusion enhancement to improve the spatial and spectral dimensions of the images.
OPTICS COMMUNICATIONS
(2023)
Article
Optics
Wei Yang, Kaixin Yin, Dongfeng Shi, Wenwen Meng, Linbin Zha, Yafeng Chen, Jian Huang, Yingjian Wang
Summary: RSPI is a single pixel imaging technique based on Radon transform and filtered back projection algorithm. A novel technique has been proposed, which achieves high-quality image reconstruction at low sampling rates by using sparse projection angle sampling and compressive sensing.
OPTICS COMMUNICATIONS
(2021)
Article
Engineering, Electrical & Electronic
Ning Jing, Chen Yu, Kewu Li, Rui Zhang, Zhibin Wang, Chao Wang
Summary: This new compressive sensing absorption spectroscopy technique uses a photoelastic modulator (PEM) to modulate the input spectrum and create multiple harmonic orders for measurement channels, achieving a high compression ratio. By randomly selecting elements to form a sensing matrix, it successfully reconstructs the infrared spectrum with CO2 absorption.
IEEE SENSORS JOURNAL
(2021)
Article
Physics, Applied
Yurui Qu, Soongyu Yi, Lan Yang, Zongfu Yu
Summary: Traditional consumer cameras only detect the intensity of light, while advanced applications like autonomous vehicles, biomedical imaging, and robotics could benefit from extracting more information such as spectral, angular, and phase information from incident light.
APPLIED PHYSICS LETTERS
(2022)
Article
Physics, Applied
Yurui Qu, Soongyu Yi, Lan Yang, Zongfu Yu
Summary: Consumer cameras currently only detect light intensity, while spectral, angular, and phase information of incident light is largely lost. More advanced sensing applications, like autonomous vehicles and robotics, could benefit from extracting additional information from incident light to help machines make better decisions. In the future, it is expected that cameras will be increasingly designed for machines rather than people, with rapid progress in machine learning and artificial intelligence driving this trend.
APPLIED PHYSICS LETTERS
(2022)
Article
Optics
Ziheng Qiu, Xinyi Guo, Tian'ao Lu, Pan Qi, Zibang Zhang, Jingang Zhong
Summary: Fourier single-pixel imaging (FSI) technique allows reconstruction of images by acquiring their Fourier spectrum using a single-pixel detector. A new sampling strategy is proposed to achieve clear and sharp image reconstruction with reduced measurements, enabling efficient spatial information acquisition. The method demonstrates the ability to reconstruct a sharp and clear 256 x 256 pixel image with a sampling ratio of 10%, providing a new approach for fast single-pixel imaging.
Article
Engineering, Electrical & Electronic
Jingjing Wu, Jicheng Wang, Lifa Hu
Summary: Single-pixel imaging (SPI) is a special imaging technique that can recover object images through turbid medium. This work proposes a frame-by-frame subtraction-based compressive sensing SPI (FFS-CSPI) method to decrease the effect of unknown ambient light, and analyzes its noise robustness compared to Hadamard CSPI.
IEEE PHOTONICS JOURNAL
(2022)
Review
Chemistry, Analytical
Wenjing Zhao, Lei Gao, Aiping Zhai, Dong Wang
Summary: Single-pixel imaging (SPI) is a technique that uses a single-pixel detector to achieve two-dimensional or multi-dimensional imaging. Many measurement matrices and reconstruction algorithms have been proposed in the field of compressed sensing signal processing, and it is necessary to explore their application in SPI.
Article
Chemistry, Analytical
Vanni Nardino, Donatella Guzzi, Cinzia Lastri, Lorenzo Palombi, Giulio Coluccia, Enrico Magli, Demetrio Labate, Valentina Raimondi
Summary: Compressive sensing (CS) is a novel approach to optical instrumentation that allows for compact signal acquisition and compression. This paper presents a CS imaging spectrometer for UV-Vis stellar spectroscopy and discusses its instrumental concept, optical design, and performances. The designed instrument achieves high compression ratios without significant information loss and shows good data reconstruction performance based on recommended quality metrics.
Article
Biochemical Research Methods
Sudheesh K. Rajput, Manoj Kumar, Xiangyu Quan, Mitsuhiro Morita, Tomoyuki Furuyashiki, Yasuhiro Awatsuji, Enrique Tajahuerce, Osamu Matoba
JOURNAL OF BIOMEDICAL OPTICS
(2020)
Article
Engineering, Electrical & Electronic
Miguel Soriano-Amat, Marcelo A. Soto, Vicente Duran, Hugo F. Martins, Sonia Martin-Lopez, Miguel Gonzalez-Herraez, Maria R. Fernandez-Ruiz
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2020)
Article
Optics
C. Quevedo-Galan, V Duran, A. Rosado, A. Perez-Serrano, J. M. G. Tijero, I Esquivias
Article
Optics
Miguel Soriano-Amat, Hugo F. Martins, Vicente Duran, Luis Costa, Sonia Martin-Lopez, Miguel Gonzalez-Herraez, Maria R. Fernandez-Ruiz
Summary: The phase-sensitive optical time-domain reflectometry (phi OTDR) technique provides spatio-temporal measurements of environmental variables in real time, with a novel approach achieving cm-scale spatial resolutions over 1 km at remarkably low detection bandwidths. This approach utilizes dual-comb spectrometry and random phase-spectral coding to maximize signal-to-noise ratio for sensing schemes.
LIGHT-SCIENCE & APPLICATIONS
(2021)
Article
Optics
A. Santos-Amador, M. Araiza-Esquivel, H. Gonzalez, A. Rodriguez-Cobos, E. Tajahuerce, L. Martinez-Leon, G. Ramirez-Flores, R. E. Balderas-Navarro
Summary: In this study, Hadamard, cosine, and noiselet bases are implemented in a digital holographic microscope for image retrieval, with cosine basis showing the best quality for amplitude images based on peak SNR criteria. The phase images recovered compare well with those obtained with a CMOS camera.
Article
Engineering, Electrical & Electronic
Sudheesh K. Rajput, Osamu Matoba, Manoj Kumar, Xiangyu Quan, Yasuhiro Awatsuji, Yosuke Tamada, Enrique Tajahuerce
Summary: The study presents a multimodal technique for cross-sectional quantitative phase and fluorescence imaging using computational microscopy. The hybrid imaging system is simple, compact, and non-iterative, suitable for imaging biological samples. Experimental results on microbeads and fluorescent protein-labeled living cells demonstrate the performance of the proposed system.
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
(2021)
News Item
Optics
Vicente Duran
Summary: By utilizing a single black phosphorus photodetector with a wavelength-scale size, mid-infrared computational spectrometry is now achievable, fulfilling the critical requirement of reducing the footprint of optical spectrometers for many in-field applications.
Article
Optics
Vincent Billault, Vicente Duran, Carlos R. Fernandez-Pousa, Vincent Crozatier, Daniel Dolfi, Hugues Guillet de Chatellus
Summary: The dynamic laser ranging system offers millimeter range resolution and 20-micrometer precision, providing dynamic measurements such as phase-sensitive measurements and Doppler shift velocimetry. Furthermore, applying perfect correlation phase sequences extends the ambiguity range to 20 meters, generating quasi-continuous waveforms with low peak power for long-range telemetry or reflectometry applications.
Article
Optics
Bahram Javidi, Artur Carnicer, Arun Anand, George Barbastathis, Wen Chen, Pietro Ferraro, J. W. Goodman, Ryoichi Horisaki, Kedar Khare, Malgorzata Kujawinska, Rainer A. Leitgeb, Pierre Marquet, Takanori Nomura, Aydogan Ozcan, YongKeun Park, Giancarlo Pedrini, Pascal Picart, Joseph Rosen, Genaro Saavedra, Natan T. Shaked, Adrian Stern, Enrique Tajahuerce, Lei Tian, Gordon Wetzstein, Masahiro Yamaguchi
Summary: This Roadmap article provides an overview of research activities in the field of digital holography, with sections covering sensing, 3D imaging, displays, virtual and augmented reality, microscopy, cell identification, tomography, label-free live cell imaging, and other applications. Each section represents the author's vision of the significant progress, potential impact, important developments, and challenging issues in the field of digital holography.
Article
Optics
Miguel Soriano-Amat, Hugo F. Martins, Vicente Duran, Sonia Martin-Lopez, Miguel Gonzalez-Herraez, Maria R. Fernandez-Ruiz
Summary: TE-Phi TDR is a distributed optical fiber sensing technique with centimeter scale resolution and low detection bandwidth, and a specific spectral phase coding methodology has been proposed to further increase its signal-to-noise ratio, leading to an experimental SNR improvement of up to 8 dB.
Article
Optics
F. Soldevila, A. J. M. Lenz, A. Ghezzi, A. Farina, C. D'Andrea, E. Tajahuerce
Summary: A new technique is introduced to rapidly acquire a giga-voxel 4D hypercube while measuring only 0.03% of the dataset. The system combines two single-pixel cameras and a conventional 2D array detector, utilizing data fusion techniques to identify different fluorophore species by their spectral and temporal signatures.
Article
Engineering, Electrical & Electronic
Miguel Soriano-Amat, Hugo F. Martins, Vicente Duran, Pablo Fermoso, Sonia Martin-Lopez, Miguel Gonzalez-Herraez, Maria R. Fernandez-Ruiz
Summary: Phase sensitive (TE-?)OTDR is a distributed fiber sensing technique that uses an electro-optic dual frequency comb (DFC) scheme, providing high spatial resolution with lower detection bandwidths compared to conventional phi OTDR systems. The limitations on resolution, range, and sensing bandwidth in TE-?OTDR are relaxed by implementing two frequency combs with quasi-integer-ratio repetition rates. The use of a rubidium atomic clock allows for up to 10(5) sensing points along 2 km of fiber with tens of Hz sensing bandwidth.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2023)
Article
Optics
Cristina M. Gomez-Sarabia, Enrique Tajahuerce, Jorge Ojeda-Castaneda
Summary: In this study, a device utilizing two pairs of varifocal cylindrical lenses for Gaussian design was discussed, which controls the scale of Fraunhofer diffraction patterns in an anamorphic manner without introducing vignetting and requiring mechanical compensation. The anamorphic capabilities were emphasized by considering the case M-y = 1/M-x.
Proceedings Paper
Optics
Osamu Matoba, Sudheesh K. Rajput, Manoj Kumar, Xiangyu Quan, Yosuke Tamada, Yasuhiro Awatsuji, Enrique Tajahuerce
THREE-DIMENSIONAL IMAGING, VISUALIZATION, AND DISPLAY 2020
(2020)
