Battery-free wireless imaging of underwater environments
Name
s41467-022-33223-x.pdf
Description
Published version
Size
2.3 MB
Format
Adobe PDF
Checksum (MD5)
78c743af6030a1f1617cef55e9f5518e
Author(s)
Afzal, Sayed Saad
Akbar, Waleed
Rodriguez, Osvy
Doumet, Mario
Ha, Unsoo
Ghaffarivardavagh, Reza
Adib, Fadel
Date Issued
September 26, 2022
Journal
Nature Communications
Publisher
Springer Science and Business Media LLC
Citation
Afzal, Sayed Saad, Akbar, Waleed, Rodriguez, Osvy, Doumet, Mario, Ha, Unsoo et al. 2022. "Battery-free wireless imaging of underwater environments." Nature Communications, 13 (1).
Version
Final published version
Abstract
AbstractImaging underwater environments is of great importance to marine sciences, sustainability, climatology, defense, robotics, geology, space exploration, and food security. Despite advances in underwater imaging, most of the ocean and marine organisms remain unobserved and undiscovered. Existing methods for underwater imaging are unsuitable for scalable, long-term, in situ observations because they require tethering for power and communication. Here we describe underwater backscatter imaging, a method for scalable, real-time wireless imaging of underwater environments using fully-submerged battery-free cameras. The cameras power up from harvested acoustic energy, capture color images using ultra-low-power active illumination and a monochrome image sensor, and communicate wirelessly at net-zero-power via acoustic backscatter. We demonstrate wireless battery-free imaging of animals, plants, pollutants, and localization tags in enclosed and open-water environments. The method’s self-sustaining nature makes it desirable for massive, continuous, and long-term ocean deployments with many applications including marine life discovery, submarine surveillance, and underwater climate change monitoring.
MIT Department
Program in Media Arts and Sciences (Massachusetts Institute of Technology)
Terms of Use
Creative Commons Attribution 4.0 International license
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1038/s41467-022-33223-x
