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Access-controlled imaging via structured single-pixel illumination.

Jiaying Zong, Guohang Wu, Chongyang Zhang

|May 15, 2026

Summary

This summary is machine-generated.

This study introduces secure single-pixel imaging for multiple objects. It uses key-controlled patterns for access control, enabling selective reconstruction and enhancing data security in imaging systems.

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Area of Science:

Optics and Photonics
Information Security
Computational Imaging

Background:

Single-pixel imaging (SPI) offers parallel perception capabilities for multiple objects.
Existing SPI methods lack robust information security and user access control mechanisms.
Need for secure imaging solutions in applications like surveillance and communication.

Purpose of the Study:

To propose and demonstrate an access-controlled imaging method for single-pixel systems.
To integrate physical-layer security into parallel multi-object imaging.
To enable selective data retrieval based on user-specific keys.

Main Methods:

Structured single-pixel illumination with key-controlled spatial displacements for phase modulation.
Optical projection multiplexing for linear mixing of multi-object information.
Template decomposition vectors as user-specific keys for image reconstruction.

Main Results:

High-quality parallel imaging of multiple objects achieved.
Demonstrated effective physical-layer access control integrated into the imaging process.
Successful selective imaging using user-specific keys during reconstruction.

Conclusions:

The proposed method provides a secure and effective solution for parallel multi-object single-pixel imaging.
Integrated access control enhances data security and enables hierarchical surveillance.
This technique offers a promising foundation for secure communication and advanced imaging applications.