# All-optical naked-eye ghost imaging

## TL;DR

This paper introduces a novel all-optical ghost imaging method that enables real-time, high-contrast naked-eye visualization of moving colored objects without electronic processing, using light-light interaction and a specialized pattern-scanning architecture.

## Contribution

It presents a new all-optical ghost imaging scheme that eliminates electronic processes and achieves high-resolution, real-time imaging with a simple pattern-scanning system.

## Key findings

- Achieved high-contrast real-time ghost imaging of moving colored objects.
- Developed a pattern-scanning architecture enabling high-resolution, high-speed imaging.
- Demonstrated naked-eye visibility without electronic computation.

## Abstract

Ghost imaging is usually based on optoelectronic process and eletronic computing. We here propose a new ghost imaging scheme, which avoids any optoelectronic or electronic process. Instead, the proposed scheme exploits all-optical correlation via the light-light interaction and the vision persistence effect to generate images observed by naked eyes. To realize high contrast naked-eye ghost imaging, a special pattern-scanning architecture on a low-speed light-modulation disk is designed, which also enables high-resolution imaging with lower-order Hadamard vectors and boosts the imaging speed. With this approach, we realize high-contrast real-time ghost imaging for moving colored objects.