Prof. Chunmin Zhang Profile

Prof. Chunmin Zhang

at Xi'an Jiaotong Univ

SPIE Involvement:

Author | Editor

Publications (44)

Proceedings Article | 15 November 2023 Paper

Airborne five-channel imaging spectrometer

Zeyu Chen, Chunmin Zhang

Proceedings Volume 12815, 128152M (2023) https://doi.org/10.1117/12.3010259

KEYWORDS: Polarization, Modulation, Spectroscopy, Spectropolarimetry, Fourier transforms

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Proceedings Article | 31 January 2023 Paper

Influence of the four-quadrant fixed mirror on the temperature and wind velocity inversion for the near-infrared static Mars wind imaging interferometer

Chunmin Zhang, Yujiao Zhang, Yifan He

Proceedings Volume 12505, 125051X (2023) https://doi.org/10.1117/12.2665176

KEYWORDS: Equipment, Wind measurement, Mars, Interferometers

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Proceedings Article | 27 January 2023 Paper

Fusion-based restoration method for uneven illumination images in deep sea

Ke Ke, Chunmin Zhang, Yujiao Zhang, Ning Chang, Feng Tang

Proceedings Volume 12550, 125501C (2023) https://doi.org/10.1117/12.2666596

KEYWORDS: Image fusion, Image enhancement, Image contrast enhancement, Light sources, Light scattering, Image processing, Image filtering, Visualization, Signal attenuation

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SPIE Journal Paper | 25 March 2021

Improved defogging algorithm for sea surface images based on dark channel prior theory

Ke Ke, Chunmin Zhang, Miao Wu, Yongqiang Sun

OE, Vol. 60, Issue 03, 033104, (March 2021) https://doi.org/10.1117/12.10.1117/1.OE.60.3.033104

KEYWORDS: Fiber optic gyroscopes, Atmospheric modeling, Digital filtering, Image filtering, Image processing, Algorithms, Silver, Optical engineering, Light scattering, Transmittance

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Proceedings Article | 15 January 2021 Paper

Polarized image enhancement based on biological vision

Yifan He, Chunmin Zhang, Tingkui Mu

Proceedings Volume 11761, 117610Z (2021) https://doi.org/10.1117/12.2586759

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Proceedings Article | 15 January 2021 Paper

Research on inversion algorithm of arbitrary phase-shifting wind imaging interferometer

Yongqiang Sun, Chunmin Zhang, Pengju Zhang, Feng Han

Proceedings Volume 11761, 1176113 (2021) https://doi.org/10.1117/12.2586800

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SPIE Journal Paper | 9 December 2020 Open Access

Using Cherenkov imaging to monitor the match line between photon and electron radiation therapy fields on biological tissue phantoms

Yi Li, Hongjun Liu, Nan Huang, Zhaolu Wang, Chunmin Zhang

JBO, Vol. 25, Issue 12, 125001, (December 2020) https://doi.org/10.1117/12.10.1117/1.JBO.25.12.125001

KEYWORDS: Radiotherapy, Tissue optics, Natural surfaces, Breast cancer, Tissues, Charge-coupled devices, Breast, Chest, Lymphatic system, Electron transport

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Significance: Due to patients’ respiratory movement or involuntary body movements during breast cancer radiotherapy, the mismatched adjacent fields in surface exposure regions could result in insufficient dosage or overdose in these regions, which would lead to tissue injury, excessive skin burns, and potential death. Cherenkov luminescence imaging (CLI) could be used to effectively detect the matching information of adjacent radiation fields without extra radiation or invasive imaging. Aim: Our objective was to provide a biological experimental basis for monitoring matching of adjacent radiation fields between photon and electron fields due to introduced shifts during radiotherapy by CLI technique. Approach: A medical accelerator was used to generate photon and electron fields. An industrial camera system was adopted to image the excited CLI signal during irradiation of chicken tissue with yellow (group A and group C experiments) or black color (group B experiment). The following introduced shifts were tested: 10, 5, 2, and 0 mm toward superior or inferior direction. A model was introduced to deal with matching error analysis of adjacent radiation fields due to introduced shifts with adapted plans used to treat neoplasms of the right breast with supraclavicular nodes or internal mammary lymph node. Results: The matching values between photon and electron fields were consistent with the tested introduced shifts during yellow chicken irradiation. In group A, average discrepancies were 0.59 ± 0.35 mm and 0.68 ± 0.37 mm for photon fields and electron fields in anterior/posterior (AP) direction, with 87% and 75% of measurement within 1 mm, respectively. In group C, average discrepancies were 0.80 ± 0.65 mm and 1.07 ± 0.57 mm for oblique photon field with gantry angles of 330 deg and 150 deg, with 66% and 65% of measurement within 1 mm, respectively. The average discrepancies were 0.44 ± 0.30 mm for electron field in the AP direction, with 94% of measurement within 1 mm. The matching error introduced by the proposed method was less than 1.5 mm for AP fields and 2 mm for oblique incidence fields. However, the field matching could not be monitored with black chicken tissue irradiation due to a weak CLI signal that could hardly be extracted from background noise in group B. Conclusions: CLI is demonstrated for the quantitative monitoring of the field match line on light biological tissue phantoms and has potential for monitoring of field matching in surface tissue during breast cancer radiotherapy.

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Proceedings Article | 17 April 2020 Paper

Reflection grating spectrometer based on AOTF

Qian Tang, Guo Qing Zhang, Chun Min Zhang, Bao Chang Zhao

Proceedings Volume 11455, 114555Y (2020) https://doi.org/10.1117/12.2565203

KEYWORDS: Spectroscopy, Spectral resolution, Objectives, Sensors, Spatial resolution, Short wave infrared radiation, Infrared radiation, Spectrometer engineering, Diffraction gratings, Earth's atmosphere

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Proceedings Article | 18 December 2019 Paper

The influence of CCD undersampling on the encircled energy of SVOM-VT

Xun Xue, Chunmin Zhang, Jianke Zhao, Yan Zhou, Shangkuo Liu, Kewei E., Kun Li, Zhengfeng Wang, Jing Li

Proceedings Volume 11341, 1134104 (2019) https://doi.org/10.1117/12.2539072

KEYWORDS: Charge-coupled devices, Image processing, Signal processing, CCD image sensors, Signal detection, Sensors, Integral imaging, Fourier transforms, Stars, Modulation transfer functions

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Proceedings Article | 12 March 2019 Paper

Effect of refractive index measurement error on immersion grating spectral lines

Qian Tang, Chun Min Zhang, Bao Chang Zhao

Proceedings Volume 11023, 1102328 (2019) https://doi.org/10.1117/12.2522019

KEYWORDS: Refractive index, Diffraction, Diffraction gratings, Spectral resolution, Error analysis, Astronomical imaging

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Proceedings Article | 24 January 2019 Paper

Efficient sparse subspace clustering for polarized hyperspectral images

Zhengyi Chen, Chunmin Zhang

Proceedings Volume 11052, 110520Z (2019) https://doi.org/10.1117/12.2521932

KEYWORDS: Polarization, Hyperspectral imaging, Image segmentation, Detection and tracking algorithms, Optimization (mathematics), Target detection, Affine motion model, Software

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Proceedings Article | 24 January 2019 Paper

Aliasing reduction for channeled spectropolarimetry based on super-resolution technique

Tingyu Yan, Chunmin Zhang

Proceedings Volume 11052, 110520X (2019) https://doi.org/10.1117/12.2521926

KEYWORDS: Polarization, Sensors, Wave plates, Modulation, Interferometers

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Proceedings Article | 24 January 2019 Paper

Thermal vacuum optical performance test system for space laser communication terminal

Xun Xue, Jianke Zhao, Chunmin Zhang, Shangkuo Liu, Kewei E., Kun Li, Zhengfeng Wang, Jing Li, Jie Zhang, Dandan Hu, Yi Guo

Proceedings Volume 11052, 1105215 (2019) https://doi.org/10.1117/12.2522000

KEYWORDS: Thermography, Optical testing, Telecommunications, Laser communications, Collimators, Polarization, Laser systems engineering, Wavefront aberrations, Calibration, Beam analyzers

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Proceedings Article | 24 January 2019 Paper

Sparse aperture masking technique on measurement of star diameter

Yanqiang Wang, Chunmin Zhang, Yifan He

Proceedings Volume 11052, 110521I (2019) https://doi.org/10.1117/12.2522451

KEYWORDS: Stars, Visibility, Telescopes, Point spread functions, Computer simulations, Astronomical imaging, Fourier transforms

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Proceedings Article | 23 February 2018 Paper

Engineering the on-axis intensity of Bessel beam by a feedback tuning loop

Runze Li, Xianghua Yu, Yanlong Yang, Tong Peng, Baoli Yao, Chunmin Zhang, Tong Ye

Proceedings Volume 10499, 1049921 (2018) https://doi.org/10.1117/12.2290358

KEYWORDS: Bessel beams, Axicons, Spatial light modulators, Optimization (mathematics), Modulation, Beam propagation method, Genetic algorithms, Feedback loops, Apodization, Optical beam profilers

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