Advancements in Optical Measurement Techniques and Applications

A special issue of Photonics (ISSN 2304-6732).

Deadline for manuscript submissions: 15 April 2025 | Viewed by 851

Special Issue Editors

Guangdong-Hong Kong-Macao Joint Laboratory of Human-Machine Intelligence-Synergy Systems, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
Interests: optical measurement; 3D reconstruction; computer vision

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Guest Editor
Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
Interests: information optics; optical 3D nondestructive testing; virtual reality

Special Issue Information

Dear Colleagues,

Optical measurement techniques have become increasingly important in various scientific and industrial fields due to their high precision, non-invasive nature, and ability to provide real-time data. Recent advancements have significantly enhanced their accuracy and broadened their range of applications, making them indispensable in industries such as manufacturing, quality control, and medical device production. The development of these technologies is inherently multidisciplinary, involving optics, mechanics, materials science, electronics, and computer science. This Special Issue aims to explore the latest innovations and applications in optical measurement, highlighting their impact on modern technology and industry.

This Special Issue aims to publish selected contributions on “Advancements in Optical Measurement Techniques and Applications.” Potential topics include, but are not limited to, the following:

  • Applications of optical measurement;
  • Optical sensors and instrumentation;
  • Advances in spectroscopy and imaging;
  • Optical metrology in manufacturing and industry;
  • Environmental monitoring using optical methods;
  • Optical measurement in telecommunications;
  • Optical applications in ocean exploration;
  • Applications of optical measurements in the life sciences;
  • Optical measurements for space research;
  • Integration of optical measurement techniques with other technologies.

Dr. Yuping Ye
Dr. Juan Zhao
Guest Editors

Manuscript Submission Information

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Keywords

  • applications of optical measurement
  • optical sensors and instrumentation
  • advances in spectroscopy and imaging
  • optical metrology in manufacturing and industry
  • environmental monitoring using optical methods
  • optical measurement in telecommunications
  • optical applications in ocean exploration
  • applications of optical measurements in the life sciences
  • optical measurements for space research
  • integration of optical measurement techniques with other technologies

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Published Papers (1 paper)

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Research

16 pages, 5620 KiB  
Article
Online Optical Axis Parallelism Measurement Method for Continuous Zoom Camera Based on High-Precision Spot Center Positioning Algorithm
by Chanchan Kang, Yao Fang, Huawei Wang, Feng Zhou, Zeyue Ren and Feixiang Han
Photonics 2024, 11(11), 1017; https://doi.org/10.3390/photonics11111017 - 29 Oct 2024
Viewed by 486
Abstract
Ensuring precise alignment of the optical axis is critical for achieving high-quality imaging in continuous zoom cameras. However, existing methods for measuring optical axis parallelism often lack accuracy and fail to assess parallelism across the entire focal range. This study introduces an online [...] Read more.
Ensuring precise alignment of the optical axis is critical for achieving high-quality imaging in continuous zoom cameras. However, existing methods for measuring optical axis parallelism often lack accuracy and fail to assess parallelism across the entire focal range. This study introduces an online measurement method designed to address these limitations by incorporating two enhancements. First, image processing methodologies enable sub-pixel-level extraction of the spot center, achieved through improved morphological processing and the incorporation of an edge tracing algorithm. Second, measurement software developed using Qt Creator can output real-time data on optical axis parallelism across the full focal range post-measurement. This software features a multi-threaded architecture that facilitates the concurrent execution of image acquisition, data processing, and serial communication. Experimental results derived from simulations and real data indicate that the maximum average error in extracting the center of the spot is 0.13 pixels. The proposed system provides critical data for optical axis calibration during camera adjustment and inspection. Full article
(This article belongs to the Special Issue Advancements in Optical Measurement Techniques and Applications)
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