Multiple Targets Identification in the Linear CCD Measurement System

2020 ◽  
Author(s):  
Chuang Wang ◽  
Xiaowei Tu
Keyword(s):  
Measurement System ◽  
Multiple Targets ◽  
Linear Ccd

Design and Calibration of Real-Time 3D Coordinate Measurement System Based on Multi-Angle Intersection and Cylindrical Imaging

2017 ◽  
Vol 870 ◽  
pp. 147-152
Author(s):  
Ling Hui Yang ◽  
Li Jun Wang ◽  
Hai Qing Liu ◽  
Yong Jie Ren ◽  
Jia Rui Lin ◽  
...  
Keyword(s):  
High Resolution ◽  
Real Time ◽  
Measurement System ◽  
Calibration Method ◽  
Light Spot ◽  
Frame Rate ◽  
Coordinate Measurement ◽  
Linear Ccd ◽  
Angle Measuring ◽  
Plane Passing

This paper presents a high-resolution real-time 3D coordinate measurement system based on multi-angle intersection and cylindrical imaging. The measuring angle is detected by the linear camera equipped with cylindrical lenses, whose field of view is a 3D space rather than 2D plane. This camera has prominent advantages in precise coordinate measurement and dynamic position tracking due to the high resolution and outstanding frame rate of linear CCD. Each camera is a 1D angle measuring unit which confirms an angle thereby a plane passing through the light spot. With three cameras arrangement in front of the measurement field, the 3D coordinate of the light spot can be reconstructed by multi-angle intersection. An accurate and generic calibration method is introduced to calibrate this camera. The proposed calibration method is based on nonparametric ideas to find the mapping from incoming scene rays to photo-sensitive elements, and this method (black box calibration) is still effective even if the lens distortion is high and asymmetric. It is applicable to a central (single viewpoint) camera equipped with any lenses. The proposed calibration method is applied to the 3D coordinate measurement system. The coordinate measurement accuracy of the designed system is better than 0.49mm.

Research of Diameter Measurement Based on CCD Image Sensor

2014 ◽  
Vol 602-605 ◽  
pp. 1984-1987
Author(s):  
Ming Quan Yang ◽  
Mei Zhao ◽  
Fei Guo ◽  
Hong Wei Wang
Keyword(s):  
Measurement System ◽  
Direct Contact ◽  
Image Sensor ◽  
Measurement Tool ◽  
Pipe Production ◽  
Diameter Measurement ◽  
Photoelectric Device ◽  
Linear Ccd ◽  
Ccd Image Sensor ◽  
Ccd Image

Use the photoelectric device-linear CCD as a measurement tool, and use the SCM for the data acquisition and data processing, a diameter measurement system which is a low costing, high-precision, non direct contact, can be created. The system can provide diameter real-time monitor to pipe production process.

Attitude calculation of multi-linear CCD exterior attitude measurement system based on Rodrigues parameter

2012 ◽  
Vol 20 (4) ◽  
pp. 858-863
Author(s):  
李晶 LI Jing ◽  
袁峰 YUAN Feng ◽  
丁振良 DING Zhen-liang
Keyword(s):  
Measurement System ◽  
Attitude Measurement ◽  
Linear Ccd

Design for Pellet Measurement System Based on TCD1206

2010 ◽  
Vol 40-41 ◽  
pp. 21-26
Author(s):  
Ge Zhu ◽  
Li Na Lou ◽  
Xian Quan Wang ◽  
Jing Luo
Keyword(s):  
Measurement System ◽  
Image Sensor ◽  
Outer Diameter ◽  
Single Chip ◽  
Threshold Method ◽  
Single Chip Microcomputer ◽  
Whole Process ◽  
Linear Ccd ◽  
Ccd Image Sensor ◽  
Ccd Image

The article proposed a kind of new measuring technique suitable for pellet outer diameter --shading of measurement, using high quality laser as the light, linear CCD image sensor TCD1206 acts testing device, TCD1206 produced drive without delay by single-chip microcomputer, process pellet outer diameter signal coming from TCD1206 by floating threshold method of binary, finally the processed binary signals send back to the single-chip microcomputer, through MAX232 serial communication transfer to PC for displaying. The whole process realizes real-time detection to pellet outer diameter, and makes measurement system had higher precision.

The Design of Photoelectric Measuring System on Railway Track Parameters

2013 ◽  
Vol 483 ◽  
pp. 555-558
Author(s):  
Guang Wei Chen
Keyword(s):  
Measurement System ◽  
Digital Processing ◽  
System Structure ◽  
Measuring System ◽  
Railway Track ◽  
Imaging Features ◽  
Positive Role ◽  
Ccd Imaging ◽  
Linear Ccd ◽  
Photoelectric Measuring

Based on the analysis of the current railway track parameters measurement system, a digital system based on embedded processor is designed. The paper introduces the principle of the system , structure and methods. The system is still based on the deviation detection principle of three point method, using high brightness light source as a measurement point, in combination with linear CCD imaging features, completed the orbit measurement system of the digital processing, and through the network to complete the communication with PC. The photoelectric measuring system is realized in trajectory parameters of high accuracy and real time measurement; Also for the future development of tamping on railway cars plays a positive role.

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