2019
DOI: 10.1016/j.precisioneng.2018.10.015
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Monocular-vision-based contouring error detection and compensation for CNC machine tools

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Cited by 17 publications
(15 citation statements)
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“…This independent matrix means the coordinate pairs of useful laser spots in each cross section, which will be used in Equations (2) and 3to fit the ellipse of that cross section. Then the cross-sectional center and center displacement are calculated according the detection principle.…”
Section: Data Processingmentioning
confidence: 99%
See 1 more Smart Citation
“…This independent matrix means the coordinate pairs of useful laser spots in each cross section, which will be used in Equations (2) and 3to fit the ellipse of that cross section. Then the cross-sectional center and center displacement are calculated according the detection principle.…”
Section: Data Processingmentioning
confidence: 99%
“…Therefore, more and more optical inspection methods are applied into the detection system, such as current stereo-vision or multi-vision systems. Li et al [2] proposed a monocular stereo vision-based contouring error detection method for CNC (Computerized Numerical Control) machine tools. From the acquired sequence images, the three-dimensional trajectories of rotary axes were reconstructed.…”
Section: Introductionmentioning
confidence: 99%
“…For the distortion calibration, the study goes in two directions: the coupled-calibration method and the decoupled-calibration method. The former can be generally divided into three types: self-calibration method [ 15 ], active calibration method, and traditional calibration method [ 16 ]. Among the traditional ones, Zhang’s calibration method [ 17 ] and its improved method [ 18 , 19 , 20 ], used widely in industry and scientific research, are the most popular.…”
Section: Introductionmentioning
confidence: 99%
“…Besides, in comparison with the state-of-the-art non-vision metrologies, the working range and measurable speed are not high enough. Thus, in [33], we extended the working range and measuring speed of a telecentric optical system, but with this system only 2D contouring errors can be detected. For a single camera equipped with a zoom lens, it has the advantages over binocular vision methods of a wide field of view (FOV), high DOF and multi-dimensional measurement.…”
Section: Introductionmentioning
confidence: 99%
“…The former meet the vision measurement requirements by selecting the optimal parameters through theoretical uncertainty analysis (e.g., mathematical derivation and simulation analysis [37]). For the other direction, the vision measurement accuracy is enhanced by handling the major factors that affect vision measurement uncertainty (e.g., imaging configuration [33], camera calibration [38] and image processing [39]), and returned results are compared with known high accuracy values. In light of this, with the aim of improving the vision measurement accuracy, innovative works focus on the camera calibration improvement, the accurate and efficient image processing, and measurement capability enhancement of single vision measurement.…”
Section: Introductionmentioning
confidence: 99%