Point cloud holographic encryption display system involving 3D face recognition and air-writing

Jia-Hui Ji; Yu Zhao; Jing-Wen Bu; Tao Zhang; Li Ming Zhu; Yuan Huang

doi:10.1364/JOSAA.507296

Journal of the Optical Society of America A
Vol. 41,
Issue 3,
pp. A47-A54
(2024)
•https://doi.org/10.1364/JOSAA.507296

Point cloud holographic encryption display system involving 3D face recognition and air-writing

Jia-Hui Ji, Yu Zhao, Jing-Wen Bu, Tao Zhang, Li Ming Zhu, and Yuan Huang

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Jia-Hui Ji, Yu Zhao, Jing-Wen Bu, Tao Zhang, Li Ming Zhu, and Yuan Huang, "Point cloud holographic encryption display system involving 3D face recognition and air-writing," J. Opt. Soc. Am. A 41, A47-A54 (2024)

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Table of Contents Category
- Holography
Optics & Photonics Topics
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The topics in this list come from the Optics and Photonics Topics applied to this article.

About this Article
History
- Original Manuscript: October 2, 2023
- Revised Manuscript: December 10, 2023
- Manuscript Accepted: January 16, 2024
- Published: February 6, 2024
Virtual Issues
Applied Optics Joint Feature Issue in Applied Optics and Journal of the Optical Society of America A: Digital Holography and 3D Imaging 2023 (2024)

JOSA A Joint Feature Issue in Applied Optics and Journal of the Optical Society of America A: Digital Holography and 3D Imaging 2023 (2024)

Abstract

In this study, we proposed a holographic identity verification encryption system that integrates face recognition, air-writing, and the multiple point cloud gridding encryption (M-PCGE) method to ensure multi-level security for objects. The experimental results show that the M-PCGE algorithm proposed in this paper achieves image encryption and decryption quickly with a high degree of restoration, and the security is verified.

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Data availability

Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.

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Algorithm	Image Size	Encryption Time (CPU)
Proposed scheme (RGB three channels)	$256 \times 256$	1.15
	$512 \times 512$	3.50
	$1024 \times 1024$	17.47
Scheme [12] (single channel)	$256 \times 256$	4.60
	$512 \times 512$	18.76
	$1024 \times 1024$	69.77

Image Size	$96 \times 96$	$128 \times 128$	$192 \times 192$	$256 \times 256$
CPU	0.4226	0.5067	0.7025	1.1516
GPU	0.2968	0.4410	0.6256	0.9113
Image size	$384 \times 384$	$512 \times 512$	$768 \times 768$	$1024 \times 1024$
CPU	2.3594	3.5025	7.8576	17.4788
GPU	2.2364	3.3252	7.1964	16.2065

Algorithm	Color	Demonstration Object	CC
M-PCGE scheme	All-color	Real face point cloud	0.998–0.999
Scheme [11]	Single-color	Multiple 2D images are superimposed	$\leq 0.93$
Scheme [12]	Single-color	Virtual three-point cloud	-

Algorithm	Image Size	Encryption Time (CPU)
Proposed scheme (RGB three channels)	$256 \times 256$	1.15
	$512 \times 512$	3.50
	$1024 \times 1024$	17.47
Scheme [12] (single channel)	$256 \times 256$	4.60
	$512 \times 512$	18.76
	$1024 \times 1024$	69.77

Image Size	$96 \times 96$	$128 \times 128$	$192 \times 192$	$256 \times 256$
CPU	0.4226	0.5067	0.7025	1.1516
GPU	0.2968	0.4410	0.6256	0.9113
Image size	$384 \times 384$	$512 \times 512$	$768 \times 768$	$1024 \times 1024$
CPU	2.3594	3.5025	7.8576	17.4788
GPU	2.2364	3.3252	7.1964	16.2065

Abstract

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Equations (17)

Journal of the Optical Society of America A