Mr. Chuncheng Zhou Profile

Chuncheng Zhou

at Academy of Opto-Electronics CAS

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Publications (4)

Proceedings Article | 9 October 2018 Presentation + Paper

A hierarchical model for embedded real-time stereo imaging

Wenjing He, Jian Hu, Chuncheng Zhou, Chuanrong Li, Wei Li, Yalan Han

Proceedings Volume 10792, 1079209 (2018) https://doi.org/10.1117/12.2500718

KEYWORDS: Digital signal processing, Field programmable gate arrays, Image processing, Real time imaging, Embedded systems, Imaging systems, Image fusion

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Proceedings Article | 25 September 2018 Paper

A smile effect correction method for dispersive imaging spectrometer based on simultaneous radiometric and spectral calibration

Chuncheng Zhou, Chuanrong Li, Wenjing He, Lingling Ma, Yongguang Zhao

Proceedings Volume 10785, 107851W (2018) https://doi.org/10.1117/12.2501444

KEYWORDS: Hyperspectral imaging, Imaging systems, Sensors, Spectral calibration, Calibration, Distortion, Radiometric corrections, Detector arrays, Spectroscopy, Image processing

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Proceedings Article | 5 October 2017 Paper

Normalization of time-series satellite reflectance data to a standard sun-target-sensor geometry using a semi-empirical model

Yongguang Zhao, Chuanrong Li, Lingling Ma, Lingli Tang, Ning Wang, Chuncheng Zhou, Yonggang Qian

Proceedings Volume 10428, 104280B (2017) https://doi.org/10.1117/12.2277307

KEYWORDS: Reflectivity, Data modeling, Bidirectional reflectance transmission function, Remote sensing, Solar radiation models, 3D modeling, Scattering, Vegetation, Satellites, Data acquisition

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Proceedings Article | 8 November 2012 Paper

A stripe noise removal method of interference hyperspectral imagery based on interferogram correction

Chuanrong Li, Chuncheng Zhou, Lingling Ma, Lingli Tang, Xinhong Wang

Proceedings Volume 8537, 85370A (2012) https://doi.org/10.1117/12.974452

KEYWORDS: Hyperspectral imaging, Fourier transforms, Charge-coupled devices, Modulation, Detector arrays, Imaging systems, Image processing, Satellites, Calibration, Image quality

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An Spatially Modulated Fourier Transform Hyperspectral Imager (named HSI) aboard on the Chinese Huan Jing-1A (HJ-1A) satellite has a spectral coverage of 0.459-0.956μm with 115 spectral bands. In practical, periodical and directional stripe noise was found distributing in the HSI imagery, especially at the first twenty shortwave bands. To fully utilize all information contained in hyperspectral images, it is demanded to eliminate the stripe noise. This paper presents a new method to deal with this problem. Firstly, possible sources of HSI stripe noise are analyzed based on interference imaging mechanism. Traditional noises, e.g. device position changes due to launch, non-uniformity in the instrument itself and aging degradations, are directly recorded at the focal plane array and thereafter in the interferogram. After inverse Fourier transform exerted on the interferogram, the spatial dimension of the interference hyperspectral image is restored with complicated and untraceable stripe noises. Therefore traditional image processing methods based on spectral image will not be effective for removing the HSI stripe noise. In order to eliminate this effect, a stripe noise removal method based on interferogram correction is necessary. Then, the implementation process of the interferogram correction method is presented, which mainly contains three steps: 1) Establish relative radiometric correction model of the interferogram based on relatively homogeneous ground scenes as much as possible; 2) Correct the response inconsistency of CCD array by carrying out relative radiometric correction on the interferogram; 3) Convert the corrected interferogram to obtain the revised hyperspectral images. An experiment is conducted and the new method is compared with several traditional methods. The results show that the stripe noise of HSI image can be more effectively removed by the proposed method, and meanwhile the texture detail of original image and the correlation among different bands are finely reserved.

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