The influence of the property of random coded patterns on fluctuation-correlation ghost imaging

Wang, Chenglong; Gong, Wenlin; Shao, Xuehui; Han, Shensheng

doi:10.1088/2040-8978/18/6/065703

Cited by 29 publications

(16 citation statements)

References 24 publications

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“…Digital micro-mirror device (DMD), as a high-speed light modulator, is widely used for SPC system [7][8][9]. By controlling the micro-mirrors of DMD, we can obtain a series of random binary coded patterns with different statistical distribution and the property of coded patterns has a great effect on the quality of SPC [9,26,27]. For example, Hadamard coded patterns, as a special case of Bernoulli modulation, can usually obtain better reconstruction result compared with other random Bernoulli coded patterns [26,27].…”

Section: Introductionmentioning

confidence: 99%

“…By controlling the micro-mirrors of DMD, we can obtain a series of random binary coded patterns with different statistical distribution and the property of coded patterns has a great effect on the quality of SPC [9,26,27]. For example, Hadamard coded patterns, as a special case of Bernoulli modulation, can usually obtain better reconstruction result compared with other random Bernoulli coded patterns [26,27]. What's more, because of the modulation property of DMD, the quality of SPC can be also enhanced by complementary detection [28].…”

Section: Introductionmentioning

confidence: 99%

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Disturbance-free single-pixel imaging camera based on P=0.5 Bernoulli modulation and complementary detection

Gong¹

2022

Preprint

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We present a technique called single-pixel imaging camera based on complementary detection and optimized Bernoulli modulation (CSPI camera), which can significantly reduce the influence of the disturbance light to single-pixel imaging (SPI). The numerical simulation demonstrates that when the probability of the value "1" is P=0.5 for each coded pattern, CSPI camera is disturbance-free is still disturbance-free even if the intensity fluctuation of the disturbance light is much larger than the signal's intensity. The reconstruction results of both SPI and differential SPI are also compared. This technique of CSPI camera can dramatically promote real application of single-pixel imaging Lidar.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Disturbance-free single-pixel imaging camera based on P=0.5 Bernoulli modulation and complementary detection

Gong¹

2022

Preprint

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“…However, oversamples would reduce its temporal resolution and limit its practical application. Increasing the imaging quality and temporal resolution of SPI is one of the most important research tasks [4][5][6][7]. According to the SPI mechanism, the illumination pattern and the reconstruction algorithm are two of the most important impact factors on SPI result.…”

Section: Introductionmentioning

confidence: 99%

Sequential Subtraction-Based Compressive Single-Pixel Imaging in Complicate Ambient Light

Wang

2022

IEEE Photonics J.

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As a special imaging technique, one of the most important advantages of single-pixel imaging (SPI) than conventional imaging method is that it can recover the object image even through turbid medium. In these situations, the noises bring by the turbid medium usually obey special rules in statistics. While in some other applications, SPI is performed in the environment with complicate ambient light, in which no prior information of the environment noise is known. Aiming at this situation, in this work, the frame-by-frame subtraction-based compressive sensing SPI (FFS-CSPI) method with random 0/1 pattern is used to decrease the effect from the unknown ambient light. The noise robustness of the FFS-CSPI method is analyzed and compared with Hadamard CSPI. In simulation and experiment, two kinds of noises, from external light source and from background video, are considered. The results prove that FFS-CSPI with random 0/1 patterns can achieve higher image quality than conventional mean subtraction method and Hadamard CSPI with the same measurement number. Considering the high refresh rate of digital micromirror device when it loads the 0/1 binary patterns, the imaging speed is acceptable. This work will promote the practical applications of SPI in complicated environment.

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“…In essence, both CGI and SPC express the spatial distribution of an object's function as a linear combination of basis patterns [22,23,24]. When the imaging system has no disturbance and all the photons transmitted/reflected from the target can be collected by the bucket detector, CGI is equivalent to SPC [8,25].…”

Section: Introductionmentioning

confidence: 99%

Performance comparison of computational ghost imaging versus single-pixel camera in light disturbance environment

Gong

2021

Preprint

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Computational ghost imaging (CGI) and single-pixel camera (SPC) are two types of single-pixel imaging and attracts increasing interest in recent years. The performance differences of CGI and SPC in difference light disturbance environment are investigated. In comparison with CGI, we demonstrate that the quality of SPC is always better in the same conditions and local light disturbance has a larger influence to CGI/SPC than global light disturbance. In addition, a method to improve the reconstruction result of SPC is proposed if the source's energy is unstable and there is light disturbance in the detection process, and its validity is also verified by numerical simulation.

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The influence of the property of random coded patterns on fluctuation-correlation ghost imaging

Cited by 29 publications

References 24 publications

Disturbance-free single-pixel imaging camera based on P=0.5 Bernoulli modulation and complementary detection

Disturbance-free single-pixel imaging camera based on P=0.5 Bernoulli modulation and complementary detection

Sequential Subtraction-Based Compressive Single-Pixel Imaging in Complicate Ambient Light

Performance comparison of computational ghost imaging versus single-pixel camera in light disturbance environment

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