RSS feed Add to your Facebook page LinkedIn Watch us on Youtube

Activity title

Advanced Methods for Laser Dazzle Evaluation

Activity Reference

SET-323

Panel

SET

Security Classification

Other

Status

Active

Activity type

RTG

Start date

2023-03-28T00:00:00Z

End date

2026-03-28T00:00:00Z

Keywords

Augmented Reality AR, Extended Reality XR, human task performance, Laser dazzle, laser dazzle simulator, laser protection, SET, Virtual Reality VR, visual performance

Background

The widespread availability of compact and powerful laser sources has made their employment against personnel a common occurrence. Dazzle attacks, including those perpetrated against pilots, may be carried out either by civilians using commercially available “laser pointers” or by military forces using specially developed laser dazzlers. While the effects of laser dazzle on vision are temporary, they can be significant if they occur during a critical task (i.e. landing an aircraft). Nevertheless, many effects of laser dazzling are still not well understood. To assess this knowledge gap, investigations were launched by SET-198/RTG ("Visible Laser Dazzle – Effects and Protection"). The results comprised models to describe the extent of dazzle effects in camera sensors and in the human eye. The follow-up group SET-249/RTG (“Laser Eye Dazzle – Threat Evaluation and Impact on Human Performance”) focused on the verification of the influence of laser dazzle on human task performance by developing and using a shooting simulator. By extending and refining the tasks, a wide range of results can be achieved that are useful for the training of military personnel. Simulated laser dazzling may also be used to conduct experiments to measure performance in the presence of laser dazzle. By creating laser dazzle effects in extended reality (XR), the performance effects of laser dazzle and even laser damage, e.g. scotomas and afterimages, may be determined.

Objectives

The objectives comprise the ongoing development of a training and research environment for laser dazzle (TRELD). This environment will be based on two different but complementary approaches: - Further development of the shooting simulator from SET-249. - Use of extended reality (XR) for simulated laser dazzling. While the shooting simulator provides the highest possible simulation of real laser dazzle (by using an eye-safe laser as the dazzle source), the XR laser dazzle simulator will be a compact and easily deployable training tool that is not subject to laser safety concerns. Research may also be conducted in XR to determine performance effects of lasers and laser exposures may be simulated at higher levels than are allowed in human experiments. In addition, possible use cases of indirect vision devices for laser protection will be investigated.

Topics

- The shooting simulator developed in SET-249 proved to be a valuable tool for human performance studies. Further development will include both software and hardware improvements. - The software improvements will comprise the implementation of: dynamic and realistic scenes, generic scenes applicable for all military branches (Army, Navy, Air Force) and simplification of the UI (user interface). - The hardware improvements will comprise the implementation of: different laser wavelengths and multicolor lasers, use of fielded aiming sights, flickering lasers and several general enhancements. - Development of a laser dazzle simulator using XR googles that allows the superimposition of a virtual laser dazzle spot on a realistic scene. This includes the choice of appropriate hardware as well as the implementation of software to generate realistic laser dazzle spots based on the work of SET-198. - Validation of the simulators by conducting real dazzling experiments in specific scenarios. - Procurement of commercial-of-the-shelf indirect vision devices. Investigation of the influence of laser radiation on such devices. Further development of algorithms for laser dazzle assessment based on previous work of SET¬ 198. Comparison of indirect vision devices to classical laser eye protection (LEP).

Contact Panel Office