Light-Efficient Holographic Illumination for Continuous-Wave Time-of-Flight Imaging
Light-Efficient Holographic Illumination for Continuous-Wave Time-of-Flight Imaging
复制标题
用于连续波飞行时间成像的高光效全息照明
DOI:
10.1145/3610548.3618152
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发表时间:
2023
期刊:
影响因子:
--
通讯作者:
O'Toole, Matthew
中科院分区:
文献类型:
--
作者:
Chan, Dorian;O'Toole, Matthew
Time-of-flight (TOF) cameras have seen widespread adoption in recent years across the entire spectrum of commodity devices. However, these devices are fundamentally limited by their dynamic range, struggling with saturation from nearby, brighter objects and noisy depth from farther, darker objects. In this work, we explore overcoming these limitations in the context of continuous-wave time-of-flight (CWTOF) devices, by using a holographic light source capable of redistributing light according to arbitrary patterns. In particular, we propose using such a system to move light from overexposed to underexposed regions of a scene, such that the entire scene is well exposed. Such a methodology can be easily integrated with existing illumination schemes for TOF. Our proof-of-concept prototype is constructed from off-the-shelf optical components, and demonstrated on a number of lab scenes.
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