Passive 3D location estimation of non-line-of-sight objects from a scattered thermal infrared light field

被引：15
|
作者：
Sasaki, Takahiro [1 ]
Hashemi, Connor [1 ]
Leger, James R. [1 ]
机构：
[1] Univ Minnesota Twin Cities, Elect & Comp Engn Dept, 200 Union St SE, Minneapolis, MN 55455 USA
来源：
OPTICS EXPRESS | 2021年 / 29卷 / 26期
关键词：
BACKGROUND SUBTRACTION TECHNIQUES;
D O I：
10.1364/OE.445181
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We propose a novel passive procedure to estimate the 3D location of non-line-of-sight objects by measuring the light field of scattered long-wavelength infrared radiation. By scanning an infrared camera in a horizontal plane, the scattered light is collected as a light field cube. We introduce mathematics that separate the weak information-bearing signal in the light field cube from residual scattered light and utilize this information to determine highly precise object locations. Finally, we experimentally demonstrate the 3D localization procedure in a life-sized hallway consisting of diffusive walls using human-temperature non-line-of-sight objects. (C) 2021 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
引用
收藏
页码：43642 / 43661
页数：20
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