A lightweight and robust VCSEL-based 3D-depth sensing approach for mobile application

Trung-Hieu Tran; Sven Simon; Bo Chen; Detlef Russ; Daniel Claus

doi:10.1117/12.2591653

20 June 2021 A lightweight and robust VCSEL-based 3D-depth sensing approach for mobile application

Trung-Hieu Tran, Sven Simon, Bo Chen, Detlef Russ, Daniel Claus

Proceedings Volume 11788, Digital Optical Technologies 2021; 117880E (2021) https://doi.org/10.1117/12.2591653
Event: SPIE Digital Optical Technologies, 2021, Online Only

Abstract

This paper discusses a 3D depth-sensing system for mobile application consisting of a structured-light illuminator based on a Vertical-Cavity Surface-Emitting Laser (VCSEL) array and an embedded imaging system equipped with a high-speed CMOS-sensor and a Field Programmable Gate Array (FPGA) device. For structured-light projection, an elliptical array pattern generated with two-photon polymerized micro-optics on top of the VCSEL is employed. To solve the correspondence problem and estimate objects’ distance, we proposed light-weight and robust algorithms in favor of hardware implementation. We demonstrate the validation of the proposed approach with initial experimental results.

Conference Presentation

Citation Download Citation

Trung-Hieu Tran, Sven Simon, Bo Chen, Detlef Russ, and Daniel Claus "A lightweight and robust VCSEL-based 3D-depth sensing approach for mobile application", Proc. SPIE 11788, Digital Optical Technologies 2021, 117880E (20 June 2021); https://doi.org/10.1117/12.2591653

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