Ultra-low-latency 3D measurement with a 1D approximate de Bruijn pattern.

IF 3.1 2区物理与天体物理 Q2 OPTICS

Optics letters Pub Date : 2025-05-01 DOI:10.1364/OL.558411

Xiaohang Shi, Qitong Guo, Ruoyu Jia, Chunxin Yang, Kenichi Murakami, Yuji Yamakawa

引用次数: 0

Abstract

We proposed an ultra-low-latency projector-camera system for 3D imaging based on the one-dimensional de Bruijn pattern. The feature of this pattern is that four selected different 5-bit de Bruijn sequences form a 7-bit approximate de Bruijn sequence, thus increasing the number of codes while maintaining the short code length, which achieves the balance between precision and decoding speed. The one-dimension property adapts well to GPU acceleration. We measured various moving and deformable objects with different materials, colors, and contrasts, and the results performed very well. For the planar surface, the proposed system acquires 120.0K points per image, and the latency is 0.059 ms with 0.80-mm precision on average.

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超低延迟三维测量与一维近似德布鲁因模式。

我们提出了一种基于一维de Bruijn模式的超低延迟3D成像投影相机系统。该模式的特点是选择4个不同的5位de Bruijn序列组成一个7位的近似de Bruijn序列，在保持较短码长的同时增加了码数，达到了精度和解码速度的平衡。一维特性很好地适应GPU加速。我们用不同的材料、颜色和对比度测量了各种移动和可变形的物体，结果表现得非常好。对于平面图像，该系统每幅图像获取120.0K个点，延迟为0.059 ms，平均精度为0.80 mm。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Optics letters 物理-光学

CiteScore

6.60

自引率

8.30%

发文量

2275

审稿时长

1.7 months

期刊介绍： The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community. Optics Letters offers rapid dissemination of new results in all areas of optics with short, original, peer-reviewed communications. Optics Letters covers the latest research in optical science, including optical measurements, optical components and devices, atmospheric optics, biomedical optics, Fourier optics, integrated optics, optical processing, optoelectronics, lasers, nonlinear optics, optical storage and holography, optical coherence, polarization, quantum electronics, ultrafast optical phenomena, photonic crystals, and fiber optics. Criteria used in determining acceptability of contributions include newsworthiness to a substantial part of the optics community and the effect of rapid publication on the research of others. This journal, published twice each month, is where readers look for the latest discoveries in optics.