3D single pixel imaging based on parallel measurement with quadrant detector

IF 3.5 2区 工程技术 Q2 OPTICS
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引用次数: 0

Abstract

Structured light three-dimensional (3D) imaging has advantages such as high accuracy, high resolution, and non-contact, and has enormous application value in fields such as automotive manufacturing and cultural relic detection. However, it often requires multiple structured light encoding to obtain 3D information, thus limiting the speed of 3D imaging. Single pixel imaging (SPI) technology, due to its use of structured light and single point detection to jointly obtain image information, can simply achieve simultaneous detection of multi-dimensional information through a single pixel detector array. Therefore, the structured light 3D imaging technology is combined with the single-pixel technology of multi-channel quadrant sensing, and the modulation of three structured light fields of red, green, and blue light is achieved separately through the decoupling of spatial 3D information and spectral dimension information. Combined with a quadrant sensing detector integrated with red, green, and blue filtering, simultaneous measurement of three structured light field signals is achieved. Thus, a scheme demonstration is accomplished to improve the imaging speed of 3D imaging by three times through decoupling. Further combining Gray codes and optimizing Hadamard sequences using compressive sensing ensures the accuracy and imaging quality under undersampling of 3D imaging. The experimental results show that the RMSE of our method is only 0.0576 mm. This method can be further extended to achieve high-precision and high-quality 3D reconstruction using more channel structured light modulation and more spectral detector arrays in only one parallel measurement.
基于象限探测器平行测量的三维单像素成像技术
结构光三维(3D)成像具有高精度、高分辨率和非接触等优点,在汽车制造和文物检测等领域具有巨大的应用价值。然而,它往往需要多次结构光编码才能获得三维信息,从而限制了三维成像的速度。而单像素成像(SPI)技术由于利用结构光和单点检测共同获取图像信息,只需通过单像素探测器阵列即可实现多维信息的同时检测。因此,将结构光三维成像技术与多通道象限传感的单像素技术相结合,通过空间三维信息和光谱维度信息的解耦,分别实现红、绿、蓝三种结构光场的调制。结合集成了红、绿、蓝滤波功能的象限传感探测器,可同时测量三个结构光场信号。因此,通过解耦将三维成像速度提高三倍的方案演示得以完成。利用压缩传感技术进一步结合格雷码和优化哈达玛序列,确保了三维成像在欠采样情况下的精度和成像质量。实验结果表明,我们的方法的均方根误差仅为 0.0576 毫米。该方法还可进一步扩展,使用更多通道结构光调制和更多光谱探测器阵列,只需一次并行测量即可实现高精度和高质量的三维重建。
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来源期刊
Optics and Lasers in Engineering
Optics and Lasers in Engineering 工程技术-光学
CiteScore
8.90
自引率
8.70%
发文量
384
审稿时长
42 days
期刊介绍: Optics and Lasers in Engineering aims at providing an international forum for the interchange of information on the development of optical techniques and laser technology in engineering. Emphasis is placed on contributions targeted at the practical use of methods and devices, the development and enhancement of solutions and new theoretical concepts for experimental methods. Optics and Lasers in Engineering reflects the main areas in which optical methods are being used and developed for an engineering environment. Manuscripts should offer clear evidence of novelty and significance. Papers focusing on parameter optimization or computational issues are not suitable. Similarly, papers focussed on an application rather than the optical method fall outside the journal''s scope. The scope of the journal is defined to include the following: -Optical Metrology- Optical Methods for 3D visualization and virtual engineering- Optical Techniques for Microsystems- Imaging, Microscopy and Adaptive Optics- Computational Imaging- Laser methods in manufacturing- Integrated optical and photonic sensors- Optics and Photonics in Life Science- Hyperspectral and spectroscopic methods- Infrared and Terahertz techniques
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