Meta-optics empowered vector visual cryptography for high security and rapid decryption

Zhang, Fei; Guo, Yinghui; Pu, Mingbo; Chen, Lianwei; Xu, M.; Liao, Minghao; Li, Lanting; Li, Xiong; Ma, Xiaoliang; Luo, Xiangang

doi:10.1038/s41467-023-37510-z

Cited by 99 publications

(24 citation statements)

References 64 publications

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“…37–39 Our work could have potential applications in some fields such as optical holography, information encryption, and multifunctional devices. 40–42…”

Section: Discussionmentioning

confidence: 99%

Terahertz state switching of holograms enabled by vanadium dioxide-based metasurfaces

Tang

et al. 2023

Phys. Chem. Chem. Phys.

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“…37–39 Our work could have potential applications in some fields such as optical holography, information encryption, and multifunctional devices. 40–42…”

Section: Discussionmentioning

confidence: 99%

Terahertz state switching of holograms enabled by vanadium dioxide-based metasurfaces

Tang

et al. 2023

Phys. Chem. Chem. Phys.

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“…It is lightweight, ultrathin, compact, easy to integrate, has low power consumption and high efficiency, and can be widely used . It can be used in various next-generation novel devices, including imaging, sensing and detection, metaverse, computing, − quantum, data storage and encryption, etc. In this work, we develop a stereovision meta-lens imaging system that can realize imaging, object detection, and depth sensing functionalities.…”

Section: Introductionmentioning

confidence: 99%

Stereo Vision Meta-Lens-Assisted Driving Vision

Liu,

Li,

Yamaguchi

et al. 2024

ACS Photonics

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Object detection and depth perception are key foundations of object tracking and machine navigation, facilitating a thorough perception and understanding of the surrounding environment. Currently, autonomous vehicles employ complex and bulky systems with high cost and energy consumption to achieve demanding multimodal vision. An imperative exists for the development of compact and reliable technology to enhance the cost-effectiveness and efficiency of autonomous driving systems. Meta-lens, a novel flat optical device, has an artificial nanoantenna array to manipulate the light properties. It is lightweight, ultrathin, and easy to integrate, making it suitable for various applications. We developed a stereo vision meta-lens imaging system for assisted driving vision, a comprehensive perception including imaging, object detection, instance segmentation, and depth information. The compact system comprises a band-pass filter, a stereo vision meta-lens, and a complementary metal oxide semiconductor (CMOS) sensor. In comparison to traditional two-camera-based stereo vision systems, the meta-lens stereo vision imaging system eliminates the need for distortion correction or camera calibration. A tailored data processing pipeline is proposed with an intensity and depth gradient cross-validation optimization mechanism and three deep learning modules for object detection, instance segmentation, and stereo matching foundations. Final assisted driving vision provides multimodal perception by integrating the raw image, instance labels, bounding boxes, segmentation masks in depth pseudo color, and depth information for each detected object. Our assisted driving vision based on a stereo meta-lens system offers a comprehensive perception for scene understanding of machines, benefiting the applications of human−computer interaction, machine navigation, autonomous driving, and augmented reality.

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“…In the contemporary digital era, information sharing has brought great convenience but also poses a tremendous risk of information leakage. Consequently, information security has become a significant focus in order to safeguard data security, leading to numerous advances in cryptographic technology. − Within this realm, metasurface-based optical encryption presents an excellent framework for the secure storage of encrypted information. − Optical encryption offers several unique merits, , including high speed, parallel processing, low power consumption, and numerous encoding channels. In tandem, the metasurface provides a compact subwavelength photonic platform with powerful light manipulation ability that can concurrently encode multiple optical parameters, − such as amplitude, , phase, , polarization, , and wavelength. , As a result, various metasurface-based optical encryption approaches are demonstrated to achieve high-security information storage based on distinct optical manipulation principles and encryption coding methods .…”

Section: Introductionmentioning

confidence: 99%

Compression-Encrypted Meta-Optics for Storage Efficiency and Security Enhancement

Wang,

Niu,

Zhao

et al. 2024

ACS Photonics

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Information security is of vital importance in daily life, stimulating various cryptographic strategies to protect data from leaking. Among them, metasurface-based optical encryption is an excellent candidate because of its unique features, including numerous encoding channels and incomparable light-field manipulation ability. However, for state-of-the-art metasurface encryption, it is still critical to further improve its storage efficiency with high security for practical information-storage applications. Here, combining data compression and optical encryption, compression-encrypted meta-optics (CEM) is proposed to improve the regular metasurface storage efficiency by an order of magnitude while maintaining high information security. Utilizing lossless compression algorithms, the plaintexts are re-encoded into nonintuitive ciphertexts and keys with much less data volume (∼1/10), thus providing the first security barrier and increasing storage efficiency. Moreover, the polarization-encrypted metasurfaces also protect the ciphertexts from direct observation, providing a second security barrier. Overall, such a CEM with two security barriers significantly improves the optical storage efficiency and presents a novel route for potential applications in next-generation optical information storage/encryption.

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Meta-optics empowered vector visual cryptography for high security and rapid decryption

Cited by 99 publications

References 64 publications

Terahertz state switching of holograms enabled by vanadium dioxide-based metasurfaces

Terahertz state switching of holograms enabled by vanadium dioxide-based metasurfaces

Stereo Vision Meta-Lens-Assisted Driving Vision

Compression-Encrypted Meta-Optics for Storage Efficiency and Security Enhancement

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