Irradiance distribution model for laser triangulation displacement sensor and parameter optimization

Yang, Hongwei; Tao, Wei; Liu, Kaimei; Selami, Yassine; Zhao, Hui

doi:10.1117/1.oe.58.9.095106

Cited by 6 publications

(5 citation statements)

References 13 publications

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“…Compared to the classical geometric optical models, the presented model reduced nonlinearities to 6.3098 and 5.7946 μm. 39 Furthermore in 2020, a back propagation neural network based on cuckoo optimization algorithm was proposed, and the nonlinearity was reduced to less than 0.006% in a full scale. Meanwhile, the measurement speed of the sensor was improved.…”

Section: Other Improvementsmentioning

confidence: 99%

“…In 2019, a convergence algorithm based on the irradiance distribution model was proposed. Compared to the classical geometric optical models, the presented model reduced nonlinearities to 6.3098 and 5.7946 μm 39 . Furthermore in 2020, a back propagation neural network based on cuckoo optimization algorithm was proposed, and the nonlinearity was reduced to less than 0.006% in a full scale.…”

Section: Laser Triangulation Measurementmentioning

confidence: 99%

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Improved laser measurement using advanced techniques: A review

Liu

Wang

et al. 2021

Micro & Optical Tech Letters

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Laser measurement technique has been widely explored and applied in various fields in recent years due to its advantages of high measurement precision and resolution. However, applications in frontier fields such as MEMS motion measurement and robotics control pose have requirement for higher precision and resolution, which promote further studies in improving the performance of this technique. Many advanced techniques have been proposed and applied in the laser measurement system to optimize its performance, and the optimized measurement system has found its way in state-of-the-art applications. In this invited paper, we focus on the latest investigations and new applications of the improved laser measurement methods, especially present recent research works regarding the laser triangulation measurement and the laser heterodyne vibration measurement. At the end, we have discussed further developments and challenges of laser measurement technique.

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Section: Other Improvementsmentioning

confidence: 99%

Section: Laser Triangulation Measurementmentioning

confidence: 99%

Improved laser measurement using advanced techniques: A review

Liu

Wang

et al. 2021

Micro & Optical Tech Letters

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“…Thus, to realize an AMC system for eliminating the effect of tissue movement, a high-speed displacement sensor for measuring the motion of living tissues in real time is indispensable. Currently, state-of-the-art methods for measuring the motion of living tissues are based on an optical system, such as optical triangulation [15][16][17][18][19][20], high speed optical imaging [12,21], optical coherence tomography (OCT) [22,23] and image correlation computation [14,24]. Optical systems can be further broadly classified as nonimage-based and image-based systems.…”

Section: Introductionmentioning

confidence: 99%

“…Currently, state-of-the-art methods for measuring the motion of living tissues are based on an optical system, such as optical triangulation [ 15 , 16 , 17 , 18 , 19 , 20 ], high speed optical imaging [ 12 , 21 ], optical coherence tomography (OCT) [ 22 , 23 ] and image correlation computation [ 14 , 24 ]. Optical systems can be further broadly classified as nonimage-based and image-based systems.…”

Section: Introductionmentioning

confidence: 99%

“…Optical systems can be further broadly classified as nonimage-based and image-based systems. Among them, the optical triangulation method is one of the most famous nonimage-based methods to measure small displacement of the specimen [ 15 , 16 , 17 , 18 , 19 ], which has a well collimated laser beam to irradiate the surface of the specimen at a certain angle, as shown in Figure 1 . The displacement of the specimen (

) can be determined by detecting the displacement of the imaged laser beam spot (

).…”

Section: Introductionmentioning

confidence: 99%

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A Compact High-Speed Image-Based Method for Measuring the Longitudinal Motion of Living Tissues

Yang

Liao

et al. 2020

Sensors

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Intraoperative imaging of living tissue at the cell level by endomicroscopy might help surgeons optimize surgical procedures and provide individualized treatments. However, the resolution of the microscopic image is limited by the motion of living tissue caused by heartbeat and respiration. An active motion compensation (AMC) strategy has been recognized as an effective way to reduce, or even eliminate, the influence of tissue movement for intravital fluorescence microscopy (IVM). To realize the AMC system, a high-speed sensor for measuring the motion of tissues is needed. At present, state-of-the-art commercialized displacement sensors are not suitable to apply in minimally invasive imaging instruments to measure the motion of living tissues because of the size problem, range of measurement or the update rate. In this study, a compact high-speed image-based method for measuring the longitudinal motion of living tissues is proposed. The complexity of the proposed method is the same as that of the traditional wide-field fluorescent microscopy (WFFM) system, which makes it easy to be miniaturized and integrated into a minimally invasive imaging instrument. Experimental results reveal that the maximum indication error, range of measurement and the sensitivity of the laboratory-built experimental prototype is 150 μm, 6 mm and −211.46 mm−1 respectively. Experimental results indicate that the proposed optical method is expected to be used in minimally invasive imaging instruments to build an AMC system.

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Development and evaluation of an active motion compensation-based optical imaging system for living tissue

Yang,

Li,

et al. 2023

Measurement

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Irradiance distribution model for laser triangulation displacement sensor and parameter optimization

Cited by 6 publications

References 13 publications

Improved laser measurement using advanced techniques: A review

Improved laser measurement using advanced techniques: A review

A Compact High-Speed Image-Based Method for Measuring the Longitudinal Motion of Living Tissues

Development and evaluation of an active motion compensation-based optical imaging system for living tissue

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