Real-time FMCW 3D imaging for various room-scale applications

Jingkai Zhang; Joseph Izatt; Ruobing Qian; Hafeez Dhalla; Kevin Zhou; Christian Viehland

doi:10.1117/12.2609132

2 March 2022 Real-time FMCW 3D imaging for various room-scale applications

Jingkai Zhang, Joseph Izatt, Ruobing Qian, Hafeez Dhalla, Kevin Zhou, Christian Viehland

Proceedings Volume PC11966, Three-Dimensional and Multidimensional Microscopy: Image Acquisition and Processing XXIX; PC1196602 (2022) https://doi.org/10.1117/12.2609132
Event: SPIE BiOS, 2022, San Francisco, California, United States

Abstract

FMCW depth imaging is a coherent 3D imaging modality analogous to SS-OCT. Due to constraints of mechanical steering mirrors, meter-scale FMCW depth cameras typically suffer from low data rates (<1Hz 3D map rate). Here, we describe the design and construction of a high-speed FMCW depth camera that employs a grating for beam steering and a telescope for angular FOV magnification. Our camera produces 3D depth maps at 33Hz, each consisting of 475x500 pixels, spanning a depth range of 32.8cm with sub-millimeter depth localization accuracy. Our FMCW depth camera is suitable for room-scale real-time 3D imaging applications, particularly computer vision applications.

Conference Presentation

Citation Download Citation

Jingkai Zhang, Joseph Izatt, Ruobing Qian, Hafeez Dhalla, Kevin Zhou, and Christian Viehland "Real-time FMCW 3D imaging for various room-scale applications", Proc. SPIE PC11966, Three-Dimensional and Multidimensional Microscopy: Image Acquisition and Processing XXIX, PC1196602 (2 March 2022); https://doi.org/10.1117/12.2609132

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