Prof. Feng Gao Profile

Prof. Feng Gao

Professor at Tianjin Univ

SPIE Involvement:

Author

Publications (137)

Proceedings Article | 20 June 2024 Poster

Hyperscanning real-world interactions via distributed functional near-infrared spectroscopy imaging system

Dongyuan Liu, Zhiyong Li, Yuke Wang, Feng Gao, Wenrui Zhu

Proceedings Volume PC13007, PC130070B (2024) https://doi.org/10.1117/12.3014735

KEYWORDS: Near infrared spectroscopy, Imaging systems, Light emitting diodes, Design and modelling, Visualization, Temporal resolution, Silicon, Signal to noise ratio, Signal intensity, Power consumption

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Proceedings Article | 19 June 2024 Poster

Wide-field illumination diffuse optical tomography within a framework of single-pixel time-resolved spatial frequency domain imaging

Wenxing Bai, Feng Gao, Yihan Dong, Yaru Zhang, Dongyuan Liu

Proceedings Volume PC13010, PC130100J (2024) https://doi.org/10.1117/12.3016914

KEYWORDS: Light sources and illumination, Diffuse optical tomography, Diffuse optical imaging, Tissues, Scattering, Imaging systems, Diffusion, Absorption, Turbidity, Time correlated single photon counting

SPIE Journal Paper | 12 March 2024 Open Access

Deep-learning approach to stratified reconstructions of tissue absorption and scattering in time-domain spatial frequency domain imaging

Yaru Zhang, Wenxing Bai, Yihan Dong, Mai Dan, Dongyuan Liu, Feng Gao

JBO, Vol. 29, Issue 03, 036002, (March 2024) https://doi.org/10.1117/12.10.1117/1.JBO.29.3.036002

KEYWORDS: Image restoration, Tissues, Education and training, Biomedical optics, Spatial resolution, Feature extraction, Computer simulations, Image resolution, Data modeling, Spatial frequencies

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Proceedings Article | 18 December 2023 Paper

Research on consistency discrimination method of fire resistive coating for steel structure based spectral imaging technology

Anna Zhao, Tianhe Wang, Lina Zhao, Hongyu Zhang, Hongyan Jiang, Chuo Li, Feng Gao

Proceedings Volume 12963, 129631C (2023) https://doi.org/10.1117/12.3007822

KEYWORDS: Coating, Fire, Resistance, Inspection, Principal component analysis, Imaging spectroscopy

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Proceedings Article | 27 November 2023 Poster + Paper

IR780-based diffuse fluorescence tomography for cancer detection

Zhuanxia He, Limin Zhang, Lingxiu Xing, Wenjing Sun, Xiujun Gao, Yanqi Zhang, Feng Gao

Proceedings Volume 12770, 127701L (2023) https://doi.org/10.1117/12.2685617

KEYWORDS: Tumors, Fluorescence, Liver, Cancer detection, Imaging systems, In vivo imaging, Fluorescence imaging, Tissues, Fluorescence tomography, Near infrared

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Proceedings Article | 27 November 2023 Poster + Paper

A revised inception-ResNet model-based transfer learning for cross-subject decoding of fNIRS-BCI

Yao Zhang, Feng Gao

Proceedings Volume 12770, 127703I (2023) https://doi.org/10.1117/12.2689271

KEYWORDS: Deep learning, Calibration, Machine learning, Feature extraction, Brain-machine interfaces, Data acquisition

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SPIE Journal Paper | 22 April 2022 Open Access

High-sensitivity dynamic diffuse fluorescence tomography system for fluorescence pharmacokinetics

Limin Zhang, Nan Cheng, Han Liu, Yingxue Pan, Yanqi Zhang, Feng Gao

JBO, Vol. 27, Issue 04, 046002, (April 2022) https://doi.org/10.1117/12.10.1117/1.JBO.27.4.046002

KEYWORDS: Luminescence, Liver, Imaging systems, Fluorescence tomography, In vivo imaging, Dynamical systems, Modulation, Tumors, Signal detection, Optical fibers

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Significance: Dynamic diffuse fluorescence tomography (DFT) can recover the static distribution of fluorophores and track dynamic temporal events related to physiological and disease progression. Dynamic imaging indocyanine green (ICG) approved by the food and drug administration is still under-exploited because of its characteristics of low quantum yield and relatively rapid tissue metabolism. Aim: In order to acquire the ICG tomographic image sequences for pharmacokinetic analysis, a dynamic DFT system was proposed. Approach: A fiber-based dynamic DFT system adopts square-wave modulation lock-in photon-counting scheme and series-parallel measurement mode, which possesses high sensitivity, large dynamic range, high anti-ambient light ability in common knowledge, as well as good cost performance. In order to investigate the effectiveness of the proposed system, the measurement stability and the anti-crosstalk—a crucial factor affecting the system parallelization—were assessed firstly, then a series of static phantoms, dynamic phantoms and in vivo mice experiments were conducted to verify the imaging capability. Results: The system has the limited dynamic range of 100 dB, the fluctuation of photon counting within 3%, and channel-to-channel crosstalk ratio better than 1.35. Under the condition of a sufficient signal-to-noise ratio, a complete measurement time for one frame image was 10.08 s. The experimental results of static phantoms with a single target and three targets showed that this system can accurately obtain the positions, sizes, and shapes of the targets and the reconstructed images exhibited a high quantitativeness. Further, the self-designed dynamic phantom experiments demonstrated the capability of the system to capture fast changing fluorescence signals. Finally, the in vivo experiments validated the practical capability of the system to effectively track the ICG metabolism in living mice. Conclusions: These results demonstrate that our proposed system can be utilized for assessing ICG pharmacokinetics, which may provide a valuable tool for tumor detection, drug assessment, and liver function evaluation.

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Proceedings Article | 9 October 2021 Poster + Presentation + Paper

Enhanced phase retrieval for non-ideal in-line phase contrast x-ray imaging based on deep learning

Yue Wu, Lin Zhang, Siqi Guo, Feng Gao, Limin Zhang, Zhongxing Zhou, Mengyu Jia

Proceedings Volume 11897, 1189710 (2021) https://doi.org/10.1117/12.2602182

KEYWORDS: Phase retrieval, Phase contrast, X-rays, Image quality, Signal to noise ratio

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Proceedings Article | 10 October 2020 Poster + Paper

Optimization method of diffuse optical tomography reconstruction based on neural network

Bin Cao, Limin Zhang, Ke Shi, Zhichao Zhao, Zhilong Sun, Jiao Li, Zhongxing Zhou, Feng Gao

Proceedings Volume 11553, 1155328 (2020) https://doi.org/10.1117/12.2573994

KEYWORDS: Neural networks, Diffuse optical tomography, Tissues, Optical properties, Image restoration, Optical imaging, Light scattering, Multiple scattering, Inverse problems, Image resolution

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Proceedings Article | 10 October 2020 Poster + Paper

Assessing pharmacokinetics of indocyanine green in liver injury mice using dynamic diffuse fluorescence tomography system

Ke Shi, Limin Zhang, Zhichao Zhao, Bin Cao, Nan Chen, Jiao Li, Zhongxing Zhou, Feng Gao

Proceedings Volume 11553, 115532B (2020) https://doi.org/10.1117/12.2574153

KEYWORDS: Liver, Fluorescence tomography, Injuries, Indocyanine green, Mode conditioning cables, Luminescence, Tissues, Biological research, Absorption, Bioalcohols

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Proceedings Article | 21 February 2020 Paper

Improving temporal resolution of fNIRS-DOT by the guidance of data-reduced pre-OT

Dongyuan Liu, Bingyuan Wang, Yao Zhang, Tiantian Pan, Yang Liu, Feng Gao

Proceedings Volume 11234, 112341J (2020) https://doi.org/10.1117/12.2542977

KEYWORDS: Temporal resolution, Image quality, Absorption, Image segmentation, Finite element methods, Neuroimaging, Brain, Spatial resolution, Diffuse optical tomography, Cerebral cortex

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Proceedings Article | 21 February 2020 Paper

A multi-channel diffuse correlation spectroscopy system for dynamic topography of blood flow index in deep tissues

Jinbin Xie, Xiangdong He, Zhuanping Qin, Feng Gao

Proceedings Volume 11234, 112341K (2020) https://doi.org/10.1117/12.2541810

KEYWORDS: Blood circulation, Tissues, In vivo imaging, Optical correlators, Blood vessels, Dynamical systems, Sensors, Imaging systems, Blood, Correlation function

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Proceedings Article | 21 February 2020 Paper

A lock-in photon-counting based single pixel imaging toward real-time multi-wavelength SFD-DOT

Mai Dan, Tongxin Li, Xi Hou, Feng Gao

Proceedings Volume 11234, 112341L (2020) https://doi.org/10.1117/12.2541785

KEYWORDS: Absorption, Modulation, Spatial frequencies, Signal detection, Tissues, Tomography, Light sources, Imaging systems, Diffuse optical imaging, Scattering

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Proceedings Article | 17 February 2020 Paper

A deep learning method based on U-Net for quantitative photoacoustic imaging

Tingting Chen, Tong Lu, Shaoze Song, Shichao Miao, Feng Gao, Jiao Li

Proceedings Volume 11240, 112403V (2020) https://doi.org/10.1117/12.2543173

KEYWORDS: Absorption, Inverse optics, Tissue optics, Monte Carlo methods, Photoacoustic imaging, Biomedical optics, Tissues, Numerical simulations, Signal detection, Photoacoustic spectroscopy

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Proceedings Article | 17 February 2020 Paper

Indirect and direct pharmacokinetic parameter reconstruction in dynamic diffuse fluorescence tomography by adaptive extended Kalman filtering scheme

Zhichao Zhao, Limin Zhang, Yanqi Zhang, Han Liu, Ke Shi, Jiao Li, Zhongxing Zhou, Feng Gao

Proceedings Volume 11243, 112431T (2020) https://doi.org/10.1117/12.2543647

KEYWORDS: Luminescence, Fluorescence tomography, Digital filtering, Filtering (signal processing), Tissues, Tumors, Data modeling, Image analysis, Absorption

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Proceedings Article | 1 March 2019 Paper

A multi-wavelength single-pixel SFD imaging system based on lock-in photon-counting detection

Xi Hou, Tongxin Li, Kuanxin Zhao, Mai Dan, Feng Gao

Proceedings Volume 10874, 108741V (2019) https://doi.org/10.1117/12.2507406

KEYWORDS: Modulation, Imaging systems, Signal detection, Tissues, Absorption, Optical properties, Modulation transfer functions, Time metrology

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Proceedings Article | 1 March 2019 Paper

Phantom verification for lock-in-photon-counting-based diffuse optical tomography system

Xiangdong He, Jinbin Xie, Wenwen Du, Guoyan Yin, Han Liu, Jiao Li, Zhongxing Zhou, Feng Gao, Limin Zhang

Proceedings Volume 10874, 108741W (2019) https://doi.org/10.1117/12.2507416

KEYWORDS: Imaging systems, Target recognition, Diffuse optical tomography, Spatial resolution, Photon counting, Optical properties, Tissue optics

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Proceedings Article | 1 March 2019 Paper

A three-wavelength 240-channel NIRS-DOT system of lock-in photon-counting mode for brain functional investigation

Tiantian Pan, Bingyuan Wang, Dongyuan Liu, Yao Zhang, Xuemei Ding, Feng Gao

Proceedings Volume 10874, 108741U (2019) https://doi.org/10.1117/12.2507405

KEYWORDS: Brain, Light sources, Imaging systems, Modulation, Absorption, Photon counting, Photonics systems, Near infrared spectroscopy, Signal detection

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Proceedings Article | 27 February 2019 Paper

PET/CT guided time-domain diffuse optical tomography for breast cancer imaging

Yiwen Ma, Feng Gao, Changqing Li

Proceedings Volume 10871, 108710R (2019) https://doi.org/10.1117/12.2507062

KEYWORDS: Breast, Numerical simulations, Computed tomography, Positron emission tomography, Breast cancer, Absorption, Diffuse optical tomography, Imaging systems, Diffuse optical imaging

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Proceedings Article | 27 February 2019 Paper

Virtual parallel-projection model-based optoacoustic reconstruction scheme for flat optoacoustic detector

Jiao Li, Shaoze Song, Yihan Wang, Tong Lu, Songhe Zhang, Feng Gao

Proceedings Volume 10878, 108786A (2019) https://doi.org/10.1117/12.2509757

KEYWORDS: Model-based design, Transducers, Optoacoustics, Reconstruction algorithms, Image quality, In vivo imaging, Performance modeling, Image processing

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Proceedings Article | 20 February 2018 Paper

Highly-sensitive and large-dynamic diffuse optical tomography system for breast tumor detection

Wenwen Du, Limin Zhang, Guoyan Yin, Yanqi Zhang, Huijuan Zhao, Feng Gao

Proceedings Volume 10505, 1050515 (2018) https://doi.org/10.1117/12.2288725

KEYWORDS: Signal detection, Modulation, Tumors, Breast, Absorption, Diffuse optical tomography, Sensors, Imaging systems, Photodetectors, Light

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Proceedings Article | 20 February 2018 Paper

Assessing pharmacokinetics of indocyanine green-loaded nanoparticle in tumor with a dynamic diffuse fluorescence tomography system

Yanqi Zhang, Guoyan Yin, Huijuan Zhao, Wenjuan Ma, Feng Gao, Limin Zhang

Proceedings Volume 10497, 1049724 (2018) https://doi.org/10.1117/12.2287056

KEYWORDS: Tumors, Nanoparticles, Luminescence, In vivo imaging, Fluorescence tomography, Dynamical systems, Indocyanine green, Tissues, Diffusion, Imaging systems

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Proceedings Article | 19 February 2018 Paper

A calibrated iterative reconstruction for quantitative photoacoustic tomography using multi-angle light-sheet illuminations

Yihan Wang, Tong Lu, Songhe Zhang, Shaoze Song, Bingyuan Wang, Jiao Li, Huijuan Zhao, Feng Gao

Proceedings Volume 10494, 104943C (2018) https://doi.org/10.1117/12.2290215

KEYWORDS: Absorption, Calibration, Acquisition tracking and pointing, Inverse optics, Photoacoustic tomography, 3D modeling, Finite element methods, Tissue optics

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Proceedings Article | 19 February 2018 Paper

Spatial-impulse-response-dependent back-projection using the non-stationary convolution in optoacoustic mesoscopy

Tong Lu, Yihan Wang, Feng Gao, Huijuan Zhao, Vasilis Ntziachristos, Jiao Li

Proceedings Volume 10494, 104943R (2018) https://doi.org/10.1117/12.2290000

KEYWORDS: Signal detection, Transducers, Sensors, Reconstruction algorithms, Convolution, Detection and tracking algorithms, Ultrasonics, Image quality, Photoacoustic imaging

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Proceedings Article | 19 February 2018 Paper

Sparse-view photoacoustic tomography using virtual parallel-projections and spatially adaptive filtering

Yihan Wang, Tong Lu, Wenbo Wan, Lingling Liu, Songhe Zhang, Jiao Li, Huijuan Zhao, Feng Gao

Proceedings Volume 10494, 104944T (2018) https://doi.org/10.1117/12.2291371

KEYWORDS: Acquisition tracking and pointing, Image filtering, Reconstruction algorithms, Transducers, Photoacoustic tomography, Fourier transforms, Compressed sensing

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Proceedings Article | 19 February 2018 Paper

A dynamic system with digital lock-in-photon-counting for pharmacokinetic diffuse fluorescence tomography

Guoyan Yin, Limin Zhang, Yanqi Zhang, Han Liu, Wenwen Du, Wenjuan Ma, Huijuan Zhao, Feng Gao

Proceedings Volume 10486, 1048613 (2018) https://doi.org/10.1117/12.2287821

KEYWORDS: Modulation, Dynamical systems, Imaging systems, Signal detection, Fluorescence tomography, Field programmable gate arrays, Current controlled current source

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Proceedings Article | 13 February 2018 Paper

X-ray luminescence computed tomography imaging via multiple intensity weighted narrow beam irradiation

Bo Feng, Feng Gao, Huijuan Zhao, Limin Zhang, Jiao Li, Zhongxing Zhou

Proceedings Volume 10487, 104870O (2018) https://doi.org/10.1117/12.2288919

KEYWORDS: X-ray imaging, Luminescence, Photons, Image quality, Numerical simulations, Imaging systems, Computed tomography, Reconstruction algorithms

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Proceedings Article | 8 February 2018 Paper

A three-wavelength multi-channel brain functional imager based on digital lock-in photon-counting technique

Xuemei Ding, Bingyuan Wang, Dongyuan Liu, Yao Zhang, Jie He, Huijuan Zhao, Feng Gao

Proceedings Volume 10480, 104800S (2018) https://doi.org/10.1117/12.2288175

KEYWORDS: Imaging systems, Brain, Modulation, Digital photography, Neuroimaging, Absorption, Sensors, Temporal resolution, Light emitting diodes, Light

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Proceedings Article | 8 February 2018 Paper

Towards real-time diffuse optical tomography for imaging brain functions cooperated with Kalman estimator

Bingyuan Wang, Yao Zhang, Dongyuan Liu, Xuemei Ding, Mai Dan, Tiantian Pan, Yihan Wang, Jiao Li, Zhongxing Zhou, Limin Zhang, Huijuan Zhao, Feng Gao

Proceedings Volume 10480, 104800T (2018) https://doi.org/10.1117/12.2291732

KEYWORDS: Brain, Neuroimaging, Diffuse optical tomography, Real time imaging, Tissue optics

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Proceedings Article | 21 February 2017 Paper

MTF evaluation of in-line phase contrast imaging system

Xiaoran Sun, Feng Gao, Huijuan Zhao, Limin Zhang, Jiao Li, Zhongxing Zhou

Proceedings Volume 10074, 100741J (2017) https://doi.org/10.1117/12.2250480

KEYWORDS: Phase contrast, Imaging systems, X-ray imaging, X-rays, Image quality, Phase shifts, Modulation transfer functions, Sensors, Breast, Tissues

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Proceedings Article | 21 February 2017 Paper

Phase retrieval for non-ideal in-line phase contrast x-ray imaging

Baikuan Guo, Feng Gao, Huijuan Zhao, Limin Zhang, Jiao Li, Zhongxing Zhou

Proceedings Volume 10074, 100741K (2017) https://doi.org/10.1117/12.2250525

KEYWORDS: Phase retrieval, Phase contrast, X-ray imaging, X-ray sources, Point spread functions, Image processing, Signal to noise ratio, Absorption, Numerical simulations, X-rays, Reconstruction algorithms

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Proceedings Article | 17 February 2017 Paper

Single snapshot determination of absorption coefficient by multi-frequency MTF characterization in spatial frequency domain

Weiting Chen, Tongxin Li, Caixia Qi, Panpan Yan, Feng Gao, Huijuan Zhao

Proceedings Volume 10059, 100591T (2017) https://doi.org/10.1117/12.2253448

KEYWORDS: Modulation transfer functions, Absorption, Fourier transforms, Optical tomography, Optical spectroscopy, Spectroscopy, Tissue optics, Modulation, Reflectivity, Optical properties, Tissues, Scattering, Diffuse reflectance spectroscopy, Signal to noise ratio

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Proceedings Article | 17 February 2017 Paper

Relationship between reconstruction quality and scan type for compressive sensing based on cone beam CT reconstruction

Lin Zhang, Huijuan Zhao, Feng Gao, Limin Zhang, Jiao Li, Zhongxing Zhou

Proceedings Volume 10070, 100701M (2017) https://doi.org/10.1117/12.2250683

KEYWORDS: CT reconstruction, Compressed sensing, Computed tomography, Reconstruction algorithms, Signal to noise ratio, Image quality, Monte Carlo methods, Sensors, X-rays, Image processing

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Proceedings Article | 17 February 2017 Paper

Wide-field fluorescence diffuse optical tomography with epi-illumination of sinusoidal pattern

Tongxin Li, Feng Gao, Weiting Chen, Caixia Qi, Panpan Yan, Huijuan Zhao

Proceedings Volume 10059, 100591Y (2017) https://doi.org/10.1117/12.2250474

KEYWORDS: Fluorescence tomography, Diffuse optical tomography, Spatial frequencies, Photons, Data acquisition, Signal detection, Modulation, Tomography, Reconstruction algorithms

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Proceedings Article | 31 October 2016 Paper

Preliminary experiments on pharmacokinetic diffuse fluorescence tomography of CT-scanning mode

Yanqi Zhang, Xin Wang, Guoyan Yin, Jiao Li, Zhongxing Zhou, Huijuan Zhao, Feng Gao, Limin Zhang

Proceedings Volume 10024, 100242Y (2016) https://doi.org/10.1117/12.2245951

KEYWORDS: Fluorescence tomography, Luminescence, Tissues, In vivo imaging, Reconstruction algorithms, Optical fibers, Silicon, Mode conditioning cables, Photon counting, Collimators

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Proceedings Article | 31 October 2016 Paper

Interstitial optical parameter quantification of turbid medium based on CW radiance measurements

Lingling Liu, Limin Zhang, Feng Gao, Huijuan Zhao

Proceedings Volume 10024, 1002436 (2016) https://doi.org/10.1117/12.2246053

KEYWORDS: Continuous wave operation, Monte Carlo methods, Optical testing, Absorption, Scattering, Tissue optics, Geometrical optics, Tissues, Biomedical optics, Prostate

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Proceedings Article | 31 October 2016 Paper

Acquisition of mouse optical structures in vivo with the aid of registered atlas

Wenbo Wan, Feng Gao

Proceedings Volume 10024, 1002434 (2016) https://doi.org/10.1117/12.2246045

KEYWORDS: Tissue optics, Soft tissue optics, Image registration, Image segmentation, In vivo imaging, Optical properties, Imaging systems, Diffuse optical tomography, Geometrical optics, Absorption

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SPIE Journal Paper | 5 May 2016 Open Access

Coupling between radiative transport and diffusion approximation for enhanced near-field photon-migration modeling based on transient photon kinetics

Mengyu Jia, Huijuan Zhao, Jiao Li, Lingling Liu, Limin Zhang, Jingying Jiang, Feng Gao

JBO, Vol. 21, Issue 05, 050501, (May 2016) https://doi.org/10.1117/12.10.1117/1.JBO.21.5.050501

KEYWORDS: Diffusion, Near field, Optical properties, 3D modeling, Photon transport, Mathematical modeling, Collimation, Lithium, Biomedical optics, Physics

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SPIE Journal Paper | 19 April 2016 Open Access

Direct reconstruction in CT-analogous pharmacokinetic diffuse fluorescence tomography: two-dimensional simulative and experimental validations

Xin Wang, Yanqi Zhang, Limin Zhang, Jiao Li, Zhongxing Zhou, Huijuan Zhao, Feng Gao

JBO, Vol. 21, Issue 04, 046007, (April 2016) https://doi.org/10.1117/12.10.1117/1.JBO.21.4.046007

KEYWORDS: Fluorescence tomography, Data modeling, Tissues, Signal to noise ratio, Instrument modeling, Performance modeling, In vivo imaging, Digital filtering, Image filtering, Electronic filtering

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Proceedings Article | 18 March 2016 Paper

Towards improved image reconstruction in breast diffuse optical tomography using compressed sensing: a comparative study among Lp (0≤p≤2)sparsity regularizations

Bingyuan Wang, Yihan Wang, Yanqi Zhang, Huijuan Zhao, Feng Gao

Proceedings Volume 9700, 970016 (2016) https://doi.org/10.1117/12.2209564

KEYWORDS: Inverse problems, Image restoration, Optical testing, Optical properties, Breast cancer, Cancer, Image quality, Absorption, Tissues, Scattering

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Proceedings Article | 18 March 2016 Paper

Validation of MTF measurement for CBCT system using Monte Carlo simulations

Ting Hao, Feng Gao, Huijuan Zhao, Zhongxing Zhou

Proceedings Volume 9700, 970017 (2016) https://doi.org/10.1117/12.2210746

KEYWORDS: Modulation transfer functions, Monte Carlo methods, Computed tomography, Spatial resolution, Reconstruction algorithms, X-rays, Tungsten, Photons, Interference (communication), Electrons

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Proceedings Article | 18 March 2016 Paper

A modified laminar optical tomography system with small dip-angle and the initial validation

Huijuan Zhao, Shuang Wang, Mengyu Jia, Xueying Chen, Jin Qi, Jing Tian, Wenjuan Ma, Jiao Li, Feng Gao

Proceedings Volume 9700, 97001B (2016) https://doi.org/10.1117/12.2213842

KEYWORDS: Optical tomography, Spatial resolution, Image restoration, Distortion, Monte Carlo methods, Algorithm development, Optical scanning systems, Optical testing, Detector development, Reconstruction algorithms, Mirrors, Image quality, Objectives

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Proceedings Article | 8 March 2016 Paper

Optical topography guided semi-three-dimensional diffuse optical tomography for a multi-layer model of occipital cortex: a pilot methodological study

Hao Ding, Yao Zhang, Jie He, Huijuan Zhao, Feng Gao

Proceedings Volume 9690, 96901S (2016) https://doi.org/10.1117/12.2209002

KEYWORDS: Absorption, Image segmentation, Diffuse optical tomography, Near infrared spectroscopy, Hemodynamics, Skin, Functional imaging, Brain, Tissue optics, 3D image processing

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Proceedings Article | 7 March 2016 Presentation + Paper

Parameterized source term in the diffusion approximation for enhanced near-field modeling of collimated light

Mengyu Jia, Shuang Wang, Xueying Chen, Feng Gao, Huijuan Zhao

Proceedings Volume 9706, 97061F (2016) https://doi.org/10.1117/12.2214722

KEYWORDS: Near field, Collimation, Optical properties, Mathematical modeling, Scattering, Diffusion, Diffuse reflectance spectroscopy, Monte Carlo methods, Absorption, Tissue optics

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SPIE Journal Paper | 12 May 2015 Open Access

Full time-resolved diffuse fluorescence tomography accelerated with parallelized Fourier-series truncated diffusion approximation

Xi Yi, Bingyuan Wang, Wenbo Wan, Yihan Wang, Yanqi Zhang, Huijuan Zhao, Feng Gao

JBO, Vol. 20, Issue 05, 056003, (May 2015) https://doi.org/10.1117/12.10.1117/1.JBO.20.5.056003

KEYWORDS: Diffusion, Fluorescence tomography, Reconstruction algorithms, Tissues, Spatial resolution, Atrial fibrillation, Image restoration, Luminescence, Sensors, Continuous wave operation

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Proceedings Article | 10 March 2015 Paper

Improvement of the background optical property reconstruction of the two-layered slab sample based on a region-stepwise-reconstruction method

Ming Liu, Zhuanping Qin, Mengyu Jia, Huijuan Zhao, Feng Gao

Proceedings Volume 9305, 93051X (2015) https://doi.org/10.1117/12.2077371

KEYWORDS: Optical properties, Brain, Biomedical optics, Head, Diffuse optical tomography, Neuroimaging, Absorption, Ions, Brain imaging, Numerical simulations

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Proceedings Article | 5 March 2015 Paper

Photoacoustic tomography guided diffuse optical tomography for small-animal model

Yihan Wang, Feng Gao, Wenbo Wan, Yan Zhang, Jiao Li

Proceedings Volume 9316, 93160P (2015) https://doi.org/10.1117/12.2075890

KEYWORDS: Inverse optics, Acquisition tracking and pointing, Tissue optics, Absorption, Inverse problems, Photoacoustic tomography, Diffuse optical tomography, Scattering, Soft tissue optics, Spatial resolution

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Proceedings Article | 5 March 2015 Paper

In vivo experimental validation for a featured-data time-domain diffuse fluorescence tomography based on the radiative transfer equation

Yan Zhang, Limin Zhang, Meng Jin, Huijuan Zhao, Feng Gao, Jiao Li

Proceedings Volume 9319, 93191S (2015) https://doi.org/10.1117/12.2075647

KEYWORDS: In vivo imaging, Radiative transfer, Luminescence, Solids, Diffusion, Collimation, Scattering, Finite element methods, Tissue optics, Light scattering

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Proceedings Article | 5 March 2015 Paper

Acquisition of priori tissue optical structure based on non-rigid image registration

Wenbo Wan, Jiao Li, Lingling Liu, Yihan Wang, Yan Zhang, Feng Gao

Proceedings Volume 9316, 93160O (2015) https://doi.org/10.1117/12.2075710

KEYWORDS: Tissue optics, Image registration, Soft tissue optics, Detection and tracking algorithms, Biomedical optics, Tissues, Reconstruction algorithms, Target acquisition, Diffuse optical tomography, X-ray optics

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Proceedings Article | 26 February 2015 Paper

An opto-electronic joint detection system based on DSP aiming at early cervical cancer screening

Weiya Wang, Mengyu Jia, Feng Gao, Lihong Yang, Pengpeng Qu, Changping Zou, Pengxi Liu, Huijuan Zhao

Proceedings Volume 9303, 93032W (2015) https://doi.org/10.1117/12.2076587

KEYWORDS: Tissue optics, Tissues, Cervical cancer, Digital signal processing, Optoelectronics, Reflectivity, Light emitting diodes, Gold, Signal attenuation, Databases

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Proceedings Article | 17 September 2014 Paper

A fast 3D image reconstruction method based on Monte-Carlo simulation for laminar optical tomography

Mengyu Jia, Shanshan Cui, Xueying Chen, Huijuan Zhao, Feng Gao

Proceedings Volume 9230, 923016 (2014) https://doi.org/10.1117/12.2070206

KEYWORDS: Reconstruction algorithms, Image restoration, Monte Carlo methods, Optical tomography, Absorption, 3D image reconstruction, Algorithm development, Detection and tracking algorithms, Sensors, Mirrors

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Proceedings Article | 17 September 2014 Paper

A fast and high-sensitive dual-wavelength diffuse optical tomography system using digital lock-in photon-counting technique

Weiting Chen, Xi Yi, Huijuan Zhao, Feng Gao

Proceedings Volume 9230, 92301K (2014) https://doi.org/10.1117/12.2068381

KEYWORDS: Modulation, Imaging systems, Diffuse optical tomography, Photodetectors, Signal detection, Absorption, Demodulation, Signal processing, Stray light, Optical fibers

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SPIE Journal Paper | 14 July 2014 Open Access

Analytical Green’s function for the fluorescence simplified spherical harmonics equations in turbid medium

Limin Zhang, Xi Yi, Jiao Li, Huijuan Zhao, Feng Gao

JBO, Vol. 19, Issue 07, 070503, (July 2014) https://doi.org/10.1117/12.10.1117/1.JBO.19.7.070503

KEYWORDS: Luminescence, Absorption, Spherical lenses, Sensors, Biological research, Surface plasmons, Diffusion, Testing and analysis, Monte Carlo methods, Light scattering

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Proceedings Article | 4 March 2014 Paper

An adaptive extended Kalman filter for fluorescence diffuse optical tomography of tumor pharmacokinetics

Xin Wang, Linhui Wu, Xi Yi, Limin Zhang, Feng Gao, Huijuan Zhao

Proceedings Volume 8952, 895219 (2014) https://doi.org/10.1117/12.2036991

KEYWORDS: Tumors, Image analysis, Luminescence, Tissues, Diffuse optical tomography, Filtering (signal processing), Plasma, Signal to noise ratio, Data modeling, Numerical simulations

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Proceedings Article | 4 March 2014 Paper

Modeling and experimental validation of angular radiance and distance-dependent radiance in a turbid medium

Lingling Liu, Chenxi Li, Huijuan Zhao, Xi Yi, Feng Gao, Wei Meng, Yiming Lu

Proceedings Volume 8952, 895218 (2014) https://doi.org/10.1117/12.2036548

KEYWORDS: Sensors, Tissue optics, Monte Carlo methods, Optical properties, Photon transport, Distance measurement, Liquids, Absorption, Scattering, Prostate

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Proceedings Article | 4 March 2014 Paper

Effect of noise levels of an edge image on determining the presampled modulation transfer function

Wenbo Wan, Feng Gao, Huijuan Zhao, Lixin Zhang, Zhongxing Zhou

Proceedings Volume 8936, 893613 (2014) https://doi.org/10.1117/12.2038093

KEYWORDS: Modulation transfer functions, Signal to noise ratio, X-rays, Smoothing, Image analysis, X-ray imaging, Imaging systems, Denoising, Computer simulations, Detection and tracking algorithms

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Proceedings Article | 4 March 2014 Paper

A laminar optical tomography system for the early cervical cancer diagnosis

Shanshan Cui, Mengyu Jia, Xueying Chen, Wei Meng, Feng Gao, Huijuan Zhao

Proceedings Volume 8952, 895217 (2014) https://doi.org/10.1117/12.2036527

KEYWORDS: Distortion, Objectives, Cervical cancer, Monte Carlo methods, Optical tomography, Image quality, Monochromatic aberrations, Mirrors, Sensors, Neodymium

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Proceedings Article | 17 February 2014 Paper

Diffuse fluorescence tomography based on the radiative transfer equation for small animal imaging

Yihan Wang, Limin Zhang, Huijuan Zhao, Feng Gao, Jiao Li

Proceedings Volume 8937, 89370W (2014) https://doi.org/10.1117/12.2039017

KEYWORDS: Solids, Tissues, Radiative transfer, Fused deposition modeling, Preclinical imaging, Monte Carlo methods, Tissue optics, Atrial fibrillation, Fluorescence tomography, Animal model studies

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Proceedings Article | 17 February 2014 Paper

IRF-calibrated Born normalization scheme for time-domain diffuse fluorescence tomography based on overlap time-gating

Feng Gao, Pengxi Liu, Wenbo Wan, Jiao Li, Huijuan Zhao

Proceedings Volume 8937, 89370O (2014) https://doi.org/10.1117/12.2035615

KEYWORDS: Picosecond phenomena, Signal to noise ratio, Spatial resolution, Data modeling, Fluorescence tomography, Modulation, CT reconstruction, Image resolution, Image restoration

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Proceedings Article | 25 March 2013 Paper

Near-infrared optical imaging of human brain based on the semi-3D reconstruction algorithm

Ming Liu, Wei Meng, Zhuanping Qin, Xiaoqing Zhou, Huijuan Zhao, Feng Gao

Proceedings Volume 8578, 85782S (2013) https://doi.org/10.1117/12.2001008

KEYWORDS: Reconstruction algorithms, Brain, 3D image processing, Optical properties, Detection and tracking algorithms, Neuroimaging, Head, Image restoration, Finite element methods, Inverse problems

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Proceedings Article | 25 March 2013 Paper

Experimental investigation on region-based diffuse optical tomography

Linhui Wu, Xi Yi, Wei Zhang, Jiao Li, Xin Wang, Limin Zhang, Huijuan Zhao, Feng Gao

Proceedings Volume 8578, 85782T (2013) https://doi.org/10.1117/12.2001044

KEYWORDS: Optical properties, Inverse optics, Tissues, Absorption, Finite element methods, Inverse problems, Tissue optics, Scattering, Optical fibers, Diffuse optical tomography

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Proceedings Article | 25 March 2013 Paper

A continuous wave non-contact diffuse optical tomographic measurement system and the corresponding image reconstruction algorithm for dense sampling data

Huijuan Zhao, Qiang Hou, Xiaoqing Zhou, Qian Wang, Ying Fan, Feng Gao

Proceedings Volume 8578, 85782U (2013) https://doi.org/10.1117/12.2001514

KEYWORDS: Absorption, Spatial frequencies, Image restoration, Reconstruction algorithms, Image quality, Diffuse optical tomography, Tomography, Continuous wave operation, Spatial resolution, Sensors

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Proceedings Article | 25 March 2013 Paper

Analytical solutions of the simplified spherical harmonics equations for infinite and semi-infinite scattering medium based on Eigen method

Limin Zhang, Wei Zhang, Feng Gao, Jiao Li, Huijuan Zhao

Proceedings Volume 8578, 85782G (2013) https://doi.org/10.1117/12.2003014

KEYWORDS: Diffusion, Scattering, Absorption, Spherical lenses, Monte Carlo methods, Tissues, Partial differential equations, Scattering media, Data modeling, Composites

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Proceedings Article | 25 March 2013 Paper

Frequency-domain endoscopic diffuse optical tomography reconstruction algorithm based on dual-modulation-frequency and dual-points source diffuse equation

Zhuanping Qin, Qiang Hou, Huijuan Zhao, Yanshuang Yang, Xiaoqing Zhou, Feng Gao

Proceedings Volume 8578, 85782H (2013) https://doi.org/10.1117/12.2000620

KEYWORDS: Reconstruction algorithms, Diffuse optical tomography, Biomedical optics, Tissue optics, Endoscopy, Image quality, Modulation, Image restoration, X-ray optics, Optical tomography

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Proceedings Article | 25 March 2013 Paper

Digital lock-in detection system based on single photon counting for near-infrared functional brain imaging

Wei Meng, Hui Guo, Ming Liu, Xi Yi, Linhui Wu, Huijuan Zhao, Feng Gao

Proceedings Volume 8578, 85782Q (2013) https://doi.org/10.1117/12.2000623

KEYWORDS: Modulation, Absorption, Signal detection, Imaging systems, Single photon, Brain imaging, Target detection, Field programmable gate arrays, Light sources, Near infrared

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Proceedings Article | 25 March 2013 Paper

The ellipsoid parametric description for the shape-based image reconstruction algorithm of diffuse optical tomography

Yuan Wang, Linhui Wu, Mengyu Jia, Lingling Liu, Huijuan Zhao, Feng Gao

Proceedings Volume 8578, 85782R (2013) https://doi.org/10.1117/12.2000813

KEYWORDS: Optical properties, Reconstruction algorithms, Image restoration, Tissues, Diffuse optical tomography, Signal to noise ratio, Biomedical optics, Data modeling, Tumors, Inverse problems

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Proceedings Article | 25 March 2013 Paper

A dual-wavelength continuous-wave diffuse optical tomography system using digital lock-in photon-counting technique

Weiting Chen, Xi Yi, Wei Zhang, Hui Guo, Limin Zhang, Huijuan Zhao, Feng Gao

Proceedings Volume 8578, 85782V (2013) https://doi.org/10.1117/12.2001583

KEYWORDS: Modulation, Diffuse optical tomography, Imaging systems, Sensors, Digital photography, Optical fibers, Continuous wave operation, Optical properties, Head, Signal processing

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Proceedings Article | 22 March 2013 Paper

A time-domain diffuse optical/fluorescent tomography using multi-dimensional TCSPC design

Yiming Lu, Wei Zhang, Linhui Wu, Liming Zhang, Feng Gao

Proceedings Volume 8572, 85721I (2013) https://doi.org/10.1117/12.2001005

KEYWORDS: Optical switching, Signal detection, Diffuse optical tomography, Optical fibers, Sensors, Signal to noise ratio, Absorption, Scattering, Photodetectors, Biomedical optics

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Proceedings Article | 13 March 2013 Paper

Time-domain schemes of optical topography: methodology, simulative and experimental validation

Linjing Duan, Xin Wang, Jiao Li, Xi Yi, Linhui Wu, Limin Zhang, Feng Gao

Proceedings Volume 8574, 85740P (2013) https://doi.org/10.1117/12.2001978

KEYWORDS: Tissue optics, Diffusion, Data modeling, Absorption, Brain, Tissues, Scattering, Biomedical optics, Optical simulations, Near infrared spectroscopy

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Proceedings Article | 13 March 2013 Paper

Towards diffuse optical tomography of arbitrarily heterogeneous turbid medium using GPU-accelerated Monte-Carlo forward calculation

Xi Yi, Weiting Chen, Linhui Wu, Wei Zhang, Jiao Li, Xin Wang, Limin Zhang, Huijuan Zhao, Feng Gao

Proceedings Volume 8574, 85740O (2013) https://doi.org/10.1117/12.2001970

KEYWORDS: Scattering, Absorption, Diffuse optical tomography, Algorithm development, Reconstruction algorithms, Sensors, Photonics systems, Monte Carlo methods, Computer simulations, Optical properties

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Proceedings Article | 13 March 2013 Paper

A method to measure the presampling MTF in digital radiography using Wiener deconvolution

Zhongxing Zhou, Qingzhen Zhu, Feng Gao, Huijuan Zhao, Lixin Zhang, Guohui Li

Proceedings Volume 8573, 85730R (2013) https://doi.org/10.1117/12.2000580

KEYWORDS: Modulation transfer functions, Deconvolution, Fourier transforms, Radiography, Imaging systems, Sensors, Interference (communication), Signal to noise ratio, Biomedical optics, Spatial frequencies

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SPIE Journal Paper | 14 September 2012 Open Access

Towards pH-sensitive imaging of small animals with photon-counting difference diffuse fluorescence tomography

Jiao Li, Xin Wang, Xi Yi, Limin Zhang, Zhongxing Zhou, Huijuan Zhao, Feng Gao

JBO, Vol. 17, Issue 9, 096011, (September 2012) https://doi.org/10.1117/12.10.1117/1.JBO.17.9.096011

KEYWORDS: Continuous wave operation, Luminescence, Cancer, Preclinical imaging, Tissues, Imaging systems, Fluorescence tomography, Photon counting, Image restoration, Diffusion

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