A new optical image encryption method based on multi-beams interference and vector composition

Chen, Linfei; Liu, Jingyu; Wen, Jisen; Gao, Xiong; Mao, Haidan; Shi, Xiaoyan; Qu, Qingling

doi:10.1016/j.optlastec.2014.12.007

Cited by 27 publications

(8 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Furthermore, optical based methods have been widely utilized in the field of image cryptography that is due to their faster computational speed and data processing in different optical domains. Methods such as double random phase encoding 42 that implements two random phase diffusers in space and frequency domains, optical colour image encryption 43 and multi-beams interference with vector composition 44 , utilize the advantages of optical imaging encoding where the data are stored in their encrypted format. These methods can be applied on low-speed imaging systems where the data acquisition rate is the same as the frame rate of the detector.…”

Section: Openmentioning

confidence: 99%

Video encryption/compression using compressive coded rotating mirror camera

Matin

Wang

2021

Sci Rep

View full text Add to dashboard Cite

Compressive coded rotating mirror (CCRM) camera is a novel high-speed imaging system that operates under amplitude optical encoding and frame sweeping modalities in a passive imaging mode that is capable of reconstructing 1400 frames from a single shot image acquisition and achieves the highest compression ratio of 368 compared to the other compressive sensing (CS) based single-shot imaging modalities. The integrated optical encoding and compression adds a strong layer of encryption on the observed data and facilitates the integration of the CCRM camera with the imaging applications that require highly efficient data encryption and compression due to capturing highly sensitive data or limited transmission and storage capacities. CCRM uses amplitude encoding that significantly extends the key space where the probability of having the exact encoder pattern is estimated as $$P\left( A\right) \ =\ 1/{10}^{122,500}$$ P A = 1 / 10 122 , 500 , hence drastically reducing the possibility of data recovery in a brute force manner. Data reconstruction is achieved under CS based algorithms where the obtained amplitude-based pattern from optical encoder operates as the key in the recovery process. Reconstruction on the experimental as well as the synthetic data at various compression ratios demonstrate that the estimated key with less than 95$$\%$$ % matching elements were unable to recover the data where the achieved averaged structural similarity (SSIM) of 0.25 before 95$$\%$$ % encoder similarity and 0.85 SSIM at 100$$\%$$ % encoder similarity demonstrates the high-sensitivity of the proposed optical encryption technique.

show abstract

Section: Openmentioning

confidence: 99%

Video encryption/compression using compressive coded rotating mirror camera

Matin

Wang

2021

Sci Rep

View full text Add to dashboard Cite

show abstract

“…Any complex number can be denoted in a more direct format, which is ffiffi ffi a p expiβ, where ffiffi ffi a p is the modulus of the complex number and β stands for the angle between ⃗z and the horizontal axis. Based on the summation rule of vectors, the complex number ⃗z can also be taken as the sum of two vectors ⃗z 1 and ⃗z 2 , which can be expressed as [33,34] ⃗z ⃗z 1 ⃗z 2 ffiffi ffi a p expiβ:…”

Section: Theoretical Analysis a Basic Vector Operationmentioning

confidence: 99%

“…Then the two unit vectors ⃗z 1 and ⃗z 2 can be expressed as [33,34] ⃗z 1 expiα; (4) ⃗z 2 expiα θ 12 :…”

Section: Theoretical Analysis a Basic Vector Operationmentioning

confidence: 99%

“…According to the theory introduced above, the second phase mask can be obtained through Eq. (5), which can be expressed as [33,34] expiθ 2 expiθ 1 θ 12 ; where θ 2 is the phase distribution of the second phase mask in interval 0; 2π. The unknown variable θ 12 in the equation can also be acquired by Eq.…”

Section: Theoretical Analysis a Basic Vector Operationmentioning

confidence: 99%

See 1 more Smart Citation

Triple-image encryption based on phase-truncated Fresnel transform and basic vector operation

et al. 2015

View full text Add to dashboard Cite

A triple-image encryption method is proposed that is based on phase-truncated Fresnel transform (PTFT), basic vector composition, and XOR operation. In the encryption process, two random phase masks, with one each placed at the input plane and the transform plane, are generated by basic vector resolution operations over the first and the second plaintext images, and then a ciphered image in the input plane is fabricated by XOR encoding for the third plaintext image. When the cryptosystem is illuminated by an on-axis plane, assisted by PTFT, the ciphered image is finally encrypted into an amplitude-only noise-like image in the output plane. During decryption, possessing the correct private key, decryption keys, and the assistant geometrical parameter keys, and placing them at the corresponding correct positions, the original three plaintext images can be successfully decrypted by inverse PTFT, basic vector composition, and XOR decoding. Theoretical analysis and numerical simulations both verify the feasibility of the proposed method.

show abstract

“…Chen et al proposed a method to encode pseudo color image using three-beam interference principle and common vector composition [28]. An encryption method based on multiple-beam interference principle and vector composition has also been introduced by them recently [29]. In this scheme, one can retrieve the original image only when all the phase-only keys are known.…”

Section: Introductionmentioning

confidence: 99%