Field evaluation of a novel holographic single-image depth reconstruction sensor

IF 1.9 4区物理与天体物理 Q3 OPTICS

Journal of the European Optical Society-Rapid Publications Pub Date : 2023-04-12 DOI:10.1051/jeos/2023017

Simon Hartlieb

引用次数: 0

Abstract

A camera-based single-image sensor is presented, that is able to measure the distance of one or multiple object points (light emitters). The sensor consists of a camera, whose lens is upgraded with a diffractive optical element (DOE). It fulfils two tasks: adding a vortex point spread function (PSF) and replication of the vortex PSFs to a predefined pattern of K spots. Both, shape and rotation of the vortex PSF is sensitive to defocus. The sensor concept is presented and its capabilities evaluated both on axis and off-axis. The achieved standard deviation of the error ranges between 8.5 µm (on-axis) and 3.5 µm (off-axis) within a measurement range of 20 mm. However, as soon as calibration and measurement position no longer match, the accuracy is limited. An analysis of the effects responsible for this are also part of the publication.

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一种新型全息单像深度重建传感器的现场评价

提出了一种基于相机的单图像传感器，它能够测量一个或多个物体点(光源)的距离。该传感器由一个相机组成，其镜头升级为衍射光学元件(DOE)。它完成了两个任务:添加涡点扩展函数(PSF)和将涡点扩展函数复制到预定义的K点模式中。涡旋PSF的形状和旋转对离焦都很敏感。提出了传感器的概念，并对其在轴上和离轴上的性能进行了评估。在20mm的测量范围内，测量误差的标准偏差范围为8.5µm(顺轴)~ 3.5µm(离轴)。然而，一旦校准和测量位置不再匹配，精度就会受到限制。对造成这种情况的影响的分析也是该出版物的一部分。

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

Journal of the European Optical Society-Rapid Publications 物理-光学

CiteScore

2.40

自引率

0.00%

发文量

审稿时长

5 weeks

期刊介绍： Rapid progress in optics and photonics has broadened its application enormously into many branches, including information and communication technology, security, sensing, bio- and medical sciences, healthcare and chemistry. Recent achievements in other sciences have allowed continual discovery of new natural mysteries and formulation of challenging goals for optics that require further development of modern concepts and running fundamental research. The Journal of the European Optical Society – Rapid Publications (JEOS:RP) aims to tackle all of the aforementioned points in the form of prompt, scientific, high-quality communications that report on the latest findings. It presents emerging technologies and outlining strategic goals in optics and photonics. The journal covers both fundamental and applied topics, including but not limited to: Classical and quantum optics Light/matter interaction Optical communication Micro- and nanooptics Nonlinear optical phenomena Optical materials Optical metrology Optical spectroscopy Colour research Nano and metamaterials Modern photonics technology Optical engineering, design and instrumentation Optical applications in bio-physics and medicine Interdisciplinary fields using photonics, such as in energy, climate change and cultural heritage The journal aims to provide readers with recent and important achievements in optics/photonics and, as its name suggests, it strives for the shortest possible publication time.