Breakthrough in Passive Non-Line-of-Sight Imaging: UMA Model Enables High-Quality Multi-Object Reconstruction
en-GBde-DEes-ESfr-FR

Breakthrough in Passive Non-Line-of-Sight Imaging: UMA Model Enables High-Quality Multi-Object Reconstruction

09/07/2026 HEP Journals
The team proposed a new passive NLOS imaging model UNet MultiAttention (UMA). The UMA model utilizes nested UNet architecture and joint attention mechanisms (channel, spatial, and self attention) for feature extraction and fusion. UMA dynamically prioritizes meaningful spatial and channel features to accurately reconstruct complex environments. In addition, a joint loss function combining BCE and MSE is used to supervise multiple reconstruction branches at different semantic levels. Conduct experiments on an infrared multi-target NLOS dataset (scene ranges from 1 to 3 hidden objects). The results showed an average improvement of 4.8% on PSNR and 2.5%on SSIM compared to the state-of-the-art NLOS passive method. Our future work will focus on exploring how to use reconstruction results for NLOS target recognition.
DOI:10.1007/s11704-025-40887-3
https://dx.doi.org/10.1007/s11704-025-40887-3
Attached files
  • (a)UMA network. (b)The structure of the down-sampling nodes inUMA
09/07/2026 HEP Journals
Regions: Asia, China
Keywords: Applied science, Computing

Disclaimer: AlphaGalileo is not responsible for the accuracy of content posted to AlphaGalileo by contributing institutions or for the use of any information through the AlphaGalileo system.

Testimonials

For well over a decade, in my capacity as a researcher, broadcaster, and producer, I have relied heavily on Alphagalileo.
All of my work trips have been planned around stories that I've found on this site.
The under embargo section allows us to plan ahead and the news releases enable us to find key experts.
Going through the tailored daily updates is the best way to start the day. It's such a critical service for me and many of my colleagues.
Koula Bouloukos, Senior manager, Editorial & Production Underknown
We have used AlphaGalileo since its foundation but frankly we need it more than ever now to ensure our research news is heard across Europe, Asia and North America. As one of the UK’s leading research universities we want to continue to work with other outstanding researchers in Europe. AlphaGalileo helps us to continue to bring our research story to them and the rest of the world.
Peter Dunn, Director of Press and Media Relations at the University of Warwick
AlphaGalileo has helped us more than double our reach at SciDev.Net. The service has enabled our journalists around the world to reach the mainstream media with articles about the impact of science on people in low- and middle-income countries, leading to big increases in the number of SciDev.Net articles that have been republished.
Ben Deighton, SciDevNet

We Work Closely With...

  • The Research Council of Norway
  • SciDevNet
  • Swiss National Science Foundation
  • iesResearch
Copyright 2026 by AlphaGalileo Terms Of Use Privacy Statement