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Video encryption/compression using compressive coded rotating mirror camera
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DOI：10.1038/s41598-021-02520-8.png)
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摘要
En 中文
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(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 amplitudebased 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.
Keyword:
IMAGE ENCRYPTION METHOD
ALGORITHM
INFORMATION
FRAMES
CHAOS
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期刊
IF:
3.9
论文数:
27.9W
被引数:
83.5W
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