Ultrafast light field tomography for snapshot transient and non-line-of-sight imaging

Xiaohua Feng and Liang Gao ()
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Xiaohua Feng: University of California
Liang Gao: University of California

Nature Communications, 2021, vol. 12, issue 1, 1-9

Abstract: Abstract Cameras with extreme speeds are enabling technologies in both fundamental and applied sciences. However, existing ultrafast cameras are incapable of coping with extended three-dimensional scenes and fall short for non-line-of-sight imaging, which requires a long sequence of time-resolved two-dimensional data. Current non-line-of-sight imagers, therefore, need to perform extensive scanning in the spatial and/or temporal dimension, restricting their use in imaging only static or slowly moving objects. To address these long-standing challenges, we present here ultrafast light field tomography (LIFT), a transient imaging strategy that offers a temporal sequence of over 1000 and enables highly efficient light field acquisition, allowing snapshot acquisition of the complete four-dimensional space and time. With LIFT, we demonstrated three-dimensional imaging of light in flight phenomena with a

Date: 2021
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DOI: 10.1038/s41467-021-22461-0

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