Author:
Boger-Lombard Jeremy,Slobodkin Yevgeny,Katz Ori
Abstract
AbstractNon-line-of-sight (NLoS) imaging is an important challenge in many fields ranging from autonomous vehicles and smart cities to defense applications. Several recent works in optics and acoustics tackle the challenge of imaging targets hidden from view (e.g. placed around a corner) by measuring time-of-flight information using active SONAR/LiDAR techniques, effectively mapping the Green functions (impulse responses) from several controlled sources to an array of detectors. Here, leveraging passive correlations-based imaging techniques (also termed ’acoustic daylight imaging’), we study the possibility of acoustic NLoS target localization around a corner without the use of controlled active sources. We demonstrate localization and tracking of a human subject hidden around a corner in a reverberating room using Green functions retrieved from correlations of broadband uncontrolled noise sources recorded by multiple detectors. Our results demonstrate that for NLoS localization controlled active sources can be replaced by passive detectors as long as a sufficiently broadband noise is present in the scene.
Funder
HORIZON EUROPE European Research Council
Isreal science foundation
Publisher
Springer Science and Business Media LLC
Cited by
1 articles.
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1. Blind Identification of Ambisonic Reduced Room Impulse Response;IEEE/ACM Transactions on Audio, Speech, and Language Processing;2024