SGE: Structured Light System Based on Gray Code with an Event Camera
<|reference_start|>SGE: Structured Light System Based on Gray Code with an Event Camera: Fast and accurate depth sensing has long been a significant research challenge. Event camera, as a device that quickly responds to intensity changes, provides a new solution for structured light (SL) systems. In this paper, we introduce Gray code into event-based SL systems for the first time. Our setup includes an event camera and Digital Light Processing (DLP) projector, enabling depth estimation through high-speed projection and decoding of Gray code patterns. By employing spatio-temporal encoding for point matching, our method is immune to timestamp noise, realizing high-speed depth estimation without loss of accuracy. The binary nature of events and Gray code minimizes data redundancy, enabling us to fully utilize sensor bandwidth at 100%. Experimental results show that our approach achieves accuracy comparable to state-of-the-art scanning methods while surpassing them in data acquisition speed (up to 41 times improvement) without sacrificing accuracy. Our proposed approach offers a highly promising solution for ultra-fast, real-time, and high-precision dense depth estimation. Code and dataset will be publicly available.<|reference_end|>
@article{lu2024sge:,
    title={SGE: Structured Light System Based on Gray Code with an Event Camera},
    author={Xingyu Lu, Lei Sun, Diyang Gu, Zhijie Xu, Kaiwei Wang},
    journal={arXiv preprint arXiv:2403.07326},
    year={2024},
    archivePrefix={arXiv},
    eprint={2403.07326},
    primaryClass={cs.CV}
}