کنفرانس مهندسی برق ایران

صفحه اصلی / سی و سومین کنفرانس بین المللی مهندسی برق

Non-Line-of-Sight imaging using raster scanning at NIR wavelength

نویسندگان :

Mohammad Roueinfar¹ Mahdi Salmanian²

1- Iran University of Science and Technology (IUST) 2- Shahid Beheshti University

کلمات کلیدی :

—Non-of-sight imaging (NLOS)،near-infrared (NIR)،raster scan

چکیده :

Non-line-of-sight (NLOS) imaging has emerged as a transformative technology, enabling the visualization of hidden objects through indirect light reflection. This paper presents a NLOS imaging method utilizing near-infrared (NIR) wavelengths, specifically employing a raster scanning technique with a pan-tilt device. The NIR laser, operating at a wavelength of 808 nm and an output power of 500 mW, illuminates a hidden target obscured by an obstacle. The imaging process involves three bounces: the laser beam first strikes a relay wall, then reflects off the hidden target, returns to the relay wall, and subsequently reaches the NIR camera. This study systematically evaluates the effectiveness of the proposed method across three distinct targets, demonstrating the capability to recover high-quality images from non-line-of-sight scenarios. The obtained images of the hidden targets are compared with their actual images, and the error in the obtained images is assessed based on the criteria of Mean Squared Error (MSE) and Root Mean Square Error (RMSE).