Dynamic visual cryptography based on chaotic oscillations

Petrauskiene, Vilma; Palivonaitė, Rita; Aleksa, Algiment; Ragulskis, Minvydas

doi:10.1016/j.cnsns.2013.06.002

Cited by 11 publications

(8 citation statements)

References 23 publications

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“…Palivonaite et al [7] proposed an image hiding algorithm in time-averaged deformable moire gratings. Petrauskiene et al [8] proposed a dynamic visual cryptography based on chaotic oscillations. In these improved algorithms [2][3][4][5][6][7][8], the basic generating equations and parameters are almost the same as those in [1].…”

Section: Introductionmentioning

confidence: 99%

“…Petrauskiene et al [8] proposed a dynamic visual cryptography based on chaotic oscillations. In these improved algorithms [2][3][4][5][6][7][8], the basic generating equations and parameters are almost the same as those in [1]. Experimental results of [1-8] did not give related parameters, nevertheless, we know that the reconstruction quality may be different when we use the same algorithm with different parameters (about this point, see Fig.…”

Section: Introductionmentioning

confidence: 99%

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A study on parameters of image encryption based on moiré pattern

Weng

Wang

et al. 2014

2014 IEEE Workshop on Electronics, Computer and Applications

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In image encryption based on moire pattern, a secret image is hidden to an encrypted image by a reference fringe pattern. When the reference fringe pattern and the encrypted image are superimposed or by simple computation, the secret can be reconstructed. Generating reference fringe pattern and encrypted image depends on selection of different parameters. Although some experimental results demonstrate validness of their algorithms based on moire pattern, related parameters are not given. In this paper, we first discuss two superimposition models for grey-scale image and analyze reconstructed images with different parameters, and then obtain relationship among reconstruction quality and parameters of generating equations. Experimental results show the validness of the obtained relationship among reconstruction quality and different parameters.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A study on parameters of image encryption based on moiré pattern

Weng

Wang

et al. 2014

2014 IEEE Workshop on Electronics, Computer and Applications

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“…Greater values of the standard deviation determine more blurred time-averaged moiré image. When = 0, time-averaged moiré grating corresponds to the moiré grating in the state of equilibrium [12]. Greyscale intensity of the time-averaged moiré image converges to value 0.5 if the standard deviation is sufficiently high ( → ∞) [12].…”

Section: Theoretical Backgroundmentioning

confidence: 99%

“…The embedding of the secret information into the moiré grating requires phase regularization algorithm as well as random phase scrambling algorithm [12]. Such an encoding scheme completely hides the secret in the stationary cover image.…”

Section: The Experimental Set-upmentioning

confidence: 99%

Application of dynamic visual cryptography for optical control of chaotic oscillations

Petrauskiene¹,

Saunorienė²

2017

Vib. proced.

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Abstract. This paper proposes an optical experimental technique for the optical control of chaotic oscillations. Technique is based on the application of dynamic visual cryptography for chaotic oscillations. Initially, the secret information is encoded into a single stochastic moiré grating, which is fixed onto the surface of the vibrating structure. It is shown, that the secret can be visually decoded if the cover image oscillates according to a chaotic law. Therefore, a simple visual inspection can be used to determine if the parameters of the chaotic oscillations remain in the allowed range.

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“…Although the Iterative Chaotic Map with Infinite Collapses in [11] potentially offers an infinite parameter space, the output time series swing over the values (-1,1) and it consequently may not be suitable for value normalization in parameter space where the previous value is zero. Moreover, other chaotic maps in [12][13][14][15][16] require complicated mathematical models with morethan-one parameter spaces, resulting in the complex process of parameter optimization. This paper therefore presents a one-dimensional sinusoidal chaotic map in combination with absolute-value nonlinearity given by…”

Section: Proposed Chaotic Map Using Absolute Sinusoidal Nonlinearitymentioning

confidence: 99%