.png){kind=icon}
返回
High Precision Visual Dimension Measurement Method with Large Range Based on Multi-Prism and M-Array Coding
.png){kind=icon}
OA
AI
DOI：10.3390/s22062081.png)
.png){kind=icon}
.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
The visual dimension measurement method based on non-splicing single lens has the contradiction between accuracy and range of measurement, which cannot be considered simultaneously. In this paper, a multi-camera cooperative measurement method without mechanical motion is proposed for the dimension measurement of thin slice workpiece. After the calibration of the multi-camera imaging system is achieved through a simple and efficient scheme, the high-precision dimension measurement with a large field of view can be completed through a single exposure. First, the images of the edges of the workpiece are compressed and combined by splitting and merging light through the multi-prism system, and the results are distributed to multiple cameras by changing the light path. Then, the mapping relationship between the global measurement coordinates and the image coordinates of each camera is established based on the globally unique M-array coding, and the image distortion is corrected by the coding unit composed of black and white blocks. Finally, the edge is located accurately by edge point detection at the sub-pixel level and curve fitting. The results of measuring a test workpiece with the dimension of 24 mm x 12 mm x 2 mm through a single exposure show that the repeated measurement accuracy can reach 0.2 mu m and the absolute accuracy can reach 0.5 mu m. Compared with other methods, our method can achieve the large-field measurement through only one exposure and without the mechanical movement of cameras. The measurement precision is higher and the speed is faster.
Keyword:
multiple prisms
M-array
high precision measurement
imaging system calibration
global coordinate coding
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
IF:
3.5
论文数:
7.2W
被引数:
20.9W
机构
引用论文
A CK19CreERT knockin mouse line allows for conditional DNA recombination in epithelial cells in multiple endodermal organs.png)
genesisOAAI
genesisIF0
OAAI分享收藏Horizontal Otolith-ocular Responses to Lateral Translation in Benign Paroxysmal Positional Vertigo
PREAI
分享收藏Robust and High-Precision Vision System for Deflection Measurement of Crane Girder With Camera Shake Reduction摄像机减摇的鲁棒高精度起重机主梁挠度测量视觉系统IEEE SENSORS JOURNAL
IEEE SENSORS JOURNALIF4.5
PREAI
分享收藏High Precision Dimensional Measurement with Convolutional Neural Network and Bi-Directional Long Short-Term Memory (LSTM)SENSORSOAAI
SENSORSIF3.5
OAAI分享收藏
分享收藏
查看更多内容