Journal ArticleDOI
Small-sized visual angular displacement measurement technology
TLDR
In this paper, a small-sized high-precision angular displacement measurement technology based on the sub-pixel level varying principle was proposed, which achieved a resolution of 20 bit and precision of 20.4″.About:
This article is published in Measurement.The article was published on 2019-03-01. It has received 12 citations till now. The article focuses on the topics: Angular displacement & System of measurement.read more
Citations
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Journal ArticleDOI
A High-Precision Absolute Angular Position Sensor With Vernier Capacitive Arrays Based on Time Grating
TL;DR: In this paper, a high-precision absolute capacitive angular position sensor based on time grating is proposed, which includes two single ring incremental type sensors arranged as outer and inner rings of capacitive arrays forming $N$ and $N-1$ measurement periods, respectively.
Journal ArticleDOI
A Compact and High-Precision Capacitive Absolute Angular Displacement Sensor
TL;DR: In this paper, the authors proposed a double capacitive ring structure for absolute angular displacement (AOD) sensors, where the inner ring is composed of a single measurement period that functions as a coarse measurement component, thereby providing an absolute position measurement.
Proceedings ArticleDOI
Optical encoder based on a nondiffractive beam
TL;DR: A new design of an optical encoder based on a non diffractive beam, a binary amplitude grating and a monolithic photodetector is introduced to measure rotation and linear displacements with sub-micrometrical resolution.
Journal ArticleDOI
Machine learning-based method for linearization and error compensation of a novel absolute rotary encoder
TL;DR: These findings demonstrate that various algorithms can perform these tasks with high accuracy and reliability; furthermore, providing extra-inputs (e.g. rotation direction) allows the machine learning algorithms to compensate for the mechanical imperfections of the rotary encoder.
Journal ArticleDOI
Monocular Vision-Based Multiparameter Dynamic Calibration Method Used for the Low-Frequency Linear and Angular Vibration Sensors
TL;DR: In this article , a monocular vision-based multiparameter calibration method is investigated, which can determine the sensitivities of these sensors in a broad low-frequency range, which strongly promotes the unification and unification of linear and angular vibration calibration.
References
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Journal ArticleDOI
Phase recovery and holographic image reconstruction using deep learning in neural networks
TL;DR: It is demonstrated that a neural network can learn to perform phase recovery and holographic image reconstruction after appropriate training, and this deep learning-based approach provides an entirely new framework to conduct holographic imaging by rapidly eliminating twin-image and self-interference-related spatial artifacts.
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Liquid crystal display and organic light-emitting diode display: present status and future perspectives
TL;DR: It is intriguing that LCD can achieve comparable or even slightly better MPRT and ACR than OLED, although its response time and contrast ratio are generally perceived to be much inferior to those of OLED.
Journal ArticleDOI
A real-time detection and positioning method for small and weak targets using a 1D morphology-based approach in 2D images
Minsong Wei,Fei Xing,Zheng You +2 more
TL;DR: The proposed small and weak target detection method with high robustness and accuracy is attractive for application to all types of real-time small target detection systems, such as medical imaging, infrared surveillance, and target measurement and tracking, where an ultra-high processing speed is required.
Journal ArticleDOI
A 3.2 kHz, 14-Bit Optical Absolute Rotary Encoder With a CMOS Profile Sensor
Yukinobu Sugiyama,Yoshinori Matsui,Haruyoshi Toyoda,Naohisa Mukozaka,A. Ihori,T. Abe,M. Takabe,Seiichiro Mizuno +7 more
TL;DR: A 3.2 kHz, 14-bit optical absolute rotary encoder system using a profile sensor and a slit disc that enables high resolution even with a small number of index codes (64 indexes) and a small amount of digital calculations.
Journal ArticleDOI
An absolute rotary position sensor based on cylindrical coordinate color space transformation
TL;DR: In this article, a very simple and low-cost absolute rotary position sensor is presented, which is based on the RGB to cylindrical coordinate color space transformation, and it has linear characteristics with accuracy below ± 1°, resolution of 0.1° and linearity with R 2 of0.99998, within the measurement range from 0° to 360°.