Real-Time 3D Profile Measurement Using Structured Light

Xu, Li; Zhang, Z J; Ma, He; Yu, Yingjie

doi:10.1088/1742-6596/48/1/063

Cited by 6 publications

(3 citation statements)

References 6 publications

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“…In the 3D shape measurement, the technology based on optical measurement principle has great advantages of non-contact, high precision and high resolution. With kinds of high-performance devices, such as semiconductor laser, CCD (charge-coupled device), CMOS (complementary metal oxide semiconductor) image sensor, position sensor devices, optical 3D shape measurement technology has been widely used in CAD/CAE, reverse engineering, online testing and machine vision, which has been a very promising3D shape measurement method [1,2].…”

Section: Introductionmentioning

confidence: 99%

Design and Simulation of MEMS Mirror Based 3D Shape Measurement System

Zhang

2015

KEM

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A 3D shape measurement system based on a laser rangefinder and a two-dimensional MEMS mirror is presented in this paper. According to the requirement of surface profile measurement, the 3D shape measurement system is mainly composed of a laser module, a two-dimensional MEMS mirror, a ranging module, an orientation module and an image composition module. Based on the MEMS scanning technology and phase shift ranging method, the surface profile of the target can be acquired by the measurement system. For the coupled scanning mode, the scanning pattern is simulated in Lissajous figure and the condition of covering all the field of view is analyzed. The simulation results show that the 3D shape measurement system based on the laser rangefinder and the two-dimensional MEMS mirror can realize the measurement the surface profile of the target in all the field of view.

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Section: Introductionmentioning

confidence: 99%

Design and Simulation of MEMS Mirror Based 3D Shape Measurement System

Zhang

2015

KEM

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“…Thus, the combination of the space and time in each stripe boundary of patterns is used so that the time consistency and the number of fringe patterns can be reduced. Actually, this strategy is still multishot pattern which can not deal with the fast moving part [3]. For this purpose, the method for direct coding based on every point containing the entire codeword in a unique pixel is developed; however, it is very sensitive to the noise because a large range of color values are adopted in such a pattern.…”

Section: Introductionmentioning

confidence: 99%

Real-time 3D shape measurement system based on single structure light pattern

Zhang

et al. 2010

2010 IEEE International Conference on Robotics and Automation

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The objective of this paper is to propose a robust one shot structured light pattern for real time 3D shape inspection system. To reduce the influence of inspected part reflectance property and ambient light, the pattern is constructed by using monochromatic light. The corner of the chessboard is utilized as the primitive of the pattern since it can provide highly accurate position. Additionally, the orientation of the corner is used to encode the primitive of the pattern. Compared with ordinary two dimensional patterns, the pattern is developed in one dimension, along the epipolar line so that the search of the corresponding pixels between the projector and the camera is speeded up. Last, experiments were conducted to evaluate the robustness and accuracy of the inspection system using the proposed pattern. The results demonstrate that the system has high accuracy performance.

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“…Many methods and applications have been developed in order to perform this task, all with their respective advantages and disadvantages with regards to computational efficiency, complexity, robustness, accuracy and performance. In the majority of cases, more than one camera [ 1 - 4 ], or a camera and a structured light source [ 5 - 7 ] have been used in order to establish the position of an object. In some applications, the use of line-scans has contributed to an overall improvement of the system, as measurement acquisition is faster than with matrix cameras, less information needs to be processed, and sensors with greater spatial resolution (higher number of pixels) can be used [ 8 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

Sensor for High Speed, High Precision Measurement of 2-D Positions

Luna

Lázaro

Mazo

et al. 2009

Sensors

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A sensor system to measure the 2-D position of an object that intercepts a plane in space is presented in this paper. This sensor system was developed with the aim of measuring the height and lateral position of contact wires supplying power to electric locomotives. The sensor comprises two line-scans focused on the zone to be measured and positioned in such a way that their viewing planes are on the same plane. The report includes a mathematical model of the sensor system, and details the method used for calibrating the sensor system. The procedure used for high speed measurement of object position in space is also described, where measurement acquisition time was less than 0.7 ms. Finally, position measurement results verifying system performance in real time are given.

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Real-Time 3D Profile Measurement Using Structured Light

Cited by 6 publications

References 6 publications

Design and Simulation of MEMS Mirror Based 3D Shape Measurement System

Design and Simulation of MEMS Mirror Based 3D Shape Measurement System

Real-time 3D shape measurement system based on single structure light pattern

Sensor for High Speed, High Precision Measurement of 2-D Positions

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