Optical image hiding based on computational ghost imaging

Wang, Le; Zhao, Shengmei; Cheng, Wei‐Wen; Gong, Lei; Chen, Hanwu

doi:10.1016/j.optcom.2016.01.026

Cited by 54 publications

(28 citation statements)

References 29 publications

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“…A ghost imaging system can be employed for information security applications by employing the recorded intensity values as ciphertext and the reference patterns as key. The ghost imaging system output (intensity values recorded by the single pixel detector) can be embedded into a host image for watermarking application [38]. Furthermore, the ghost imaging output of one object image can be hidden into the ghost imaging output of another object image [39,40].…”

Section: Optical Watermarking With Ghost Imaging Systemmentioning

confidence: 99%

Review on optical image hiding and watermarking techniques

Jiao

Zhou

et al. 2019

Optics & Laser Technology

136

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Information security is a critical issue in modern society and image watermarking can effectively prevent unauthorized information access. Optical image watermarking techniques generally have advantages of parallel high-speed processing and multi-dimensional capabilities compared with digital approaches. This paper provides a comprehensive review on the research works related to optical image hiding and watermarking techniques conducted in the past decade.The past research works are focused on two major aspects, various optical systems for image hiding and the methods for embedding optical system output into a host image. A summary of the state-of-the-art works is made from these two perspectives.

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Section: Optical Watermarking With Ghost Imaging Systemmentioning

confidence: 99%

Review on optical image hiding and watermarking techniques

Jiao

Zhou

et al. 2019

Optics & Laser Technology

136

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“…GI offers great promise for its higher spatial resolution [3], [4] and higher detection sensitivity [5]. Thus, the past years have witnessed a rapidly growing interest in the applications of GI, ranging from laser radars [6], [7], microscopes [8], [9], object edges extraction [10]- [13], image hiding methods [14]- [16] to optical encryption schemes [17]- [20].…”

Section: Introductionmentioning

confidence: 99%

Multiple-Input Single-Output Ghost Imaging

Wang

Zhao

2020

IEEE Photonics J.

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In this paper, we propose a multiple-input single-output ghost imaging scheme, named MISO-GI. In the scheme, K spatiotemporal speckle pattern sources (multiple input) simultaneously generate K different spatiotemporal modulated speckle patterns which then are illuminated on an unknown object at the same time. Then, a non-spatial-resolution bucket detector (single output) is used to detect the light field interacting with the object. According to the orthogonality of speckle patterns from different spatiotemporal speckle pattern sources, the detection signal is separated into K components corresponding to K spatiotemporal modulated speckle patterns. With the effective recovery algorithm, an image is reconstructed by using all spatiotemporal modulated speckle patterns and their corresponding components of detection signals. Both experimental and simulation results verify the feasibility of the proposed MISO-GI scheme. Moreover, the results also show that the proposed MISO-GI scheme could reduce the total sampling time by K times and improve the imaging quality comparing to traditional GI, without the decrease of the number of speckle patterns and the picture time as well as the consumption of other light field dimensions. It provides a promising avenue to realize GI with limited sampling time and has potential for more applications.

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“…The technique has particular potential for imaging under turbulent [4][5][6][7] or low-light-level conditions [8] as well as in harsh environments where conventional imaging methods are hard or impossible to implement [9]. Recently, ghost imaging has been demonstrated in such diverse applications as x-ray [10], atom [11], and neutron [12] imaging, as well as in encryption [13], spectroscopy [14], ellipsometry [15,16], and polarimetry using Stokes correlations [17].…”

Section: Introductionmentioning

confidence: 99%

Temporal phase-contrast ghost imaging

et al. 2020

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We introduce a phase-contrast ghost-imaging scheme for the characterization of temporal phase objects in terms of intensity correlations at two photodetectors. The technique is analogous to Zernike's phase-contrast imaging method and is based on utilizing a suitable filter function which renders the small-amplitude phase variations visible in the intensity correlation function. The approach is insensitive to temporal distortions and offers a promising method to analyze the phases of optical pulses.

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Optical image hiding based on computational ghost imaging

Cited by 54 publications

References 29 publications

Review on optical image hiding and watermarking techniques

Review on optical image hiding and watermarking techniques

Multiple-Input Single-Output Ghost Imaging

Temporal phase-contrast ghost imaging

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