A New Calibration Procedure for 3-D Shape Measurement System Based on Phase-Shifting Projected Fringe Profilometry

This paper presents a novel area-modulated phaseshifting binary method for three-dimensional (3D) shape measurement. First, the defocused triangular binary pattern is introduced to obtain the high-quality sinusoidal fringe without gamma correction. Then, the modified three steps phase-shifting algorithm which includes an average intensity image is adopted to get the wrapped phase and the object mask. After that, a multi-frequency method is used to obtain the unwrapped phase. Finally, a two-step matching method is applied to get the corresponding matching points. The experiments show that the proposed method is more precise and efficient compared with the previous methods.

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“…In this paper, we use three-frequency heterodyne [16][17][18][19][20]. The close frequencies 70, 64 and 59 are chosen.…”

Section: The Multi-frequency Methodsmentioning

confidence: 99%

High precision 3D measurement using area modulated phase-shifting binary patterns

Huang

Fang

et al. 2013

2013 Ninth International Conference on Natural Computation (ICNC)

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“…Generally, empirical methods need to acquire fringe patterns that are projected onto a large number of parallel planes (around 50, in Liu's [10] method) at known depth values [12]. Anchini et al [13] and Zhang et al [14] have suggested the use of virtual phase approaches to acquire fringe data for only a few parallel planes (typically two, or three) and then to generate fringe data for virtual planes, where the data for the "virtual planes" has not been actually acquired by the system, but is instead estimated by various proposed techniques. The virtual phase method has succeeded in greatly reducing the required time for the calibration process, but it requires estimating the intrinsic and extrinsic system parameters, and this increases the complexity of the calibration procedure.…”

Section: Introductionmentioning

confidence: 99%

Simple and accurate empirical absolute volume calibration of a multi-sensor fringe projection system

Gdeisat

Qudeisat

AlSa׳d

et al. 2016

Optics and Lasers in Engineering

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This paper suggests a novel absolute empirical calibration method for a multi-sensor fringe projection system. The optical setup of the projector-camera sensor can be arbitrary. The term absolute calibration here means that the centre of the three dimensional coordinates in the resultant calibrated volume coincides with a preset centre to the three-dimensional real-world coordinate system. The use of a zero-phase fringe marking spot is proposed to increase depth calibration accuracy, where the spot centre is determined with sub-pixel accuracy. Also, a new method is proposed for transversal calibration. Depth and transversal calibration methods have been tested using both single sensor and three-sensor fringe projection systems. The standard deviation of the error produced by this system is 0.25 mm. The calibrated volume produced by this method is 400 mm × 400 mm × 140 mm.

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“…In many structured light illumination (SLI) [1] implementations, phase measuring profilometry (PMP) [2] is well known for its high reliability and high accuracy [3,4,5]. Several previous studies have been performed on measuring phase error [6,7,8].…”

Section: Introduction Introduction Introduction Introductionmentioning

confidence: 99%

Study on phase error for partial intensity saturation in phase measuring profilometry

Zhao

Wang

2013

2013 IEEE China Summit and International Conference on Signal and Information Processing

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To overcome the phase error caused by the partial intensity saturation in phase measuring profilometry, this paper studies the relative phase error caused by partial saturation. Moreover, an improved algorithm for phase reconstruction with partial saturated intensity is proposed. Compared with other phase-recovering methods, the improved algorithm is not limited to saturation coefficient. Finally the simulation results validate the feasibility of the proposed algorithm.

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A New Calibration Procedure for 3-D Shape Measurement System Based on Phase-Shifting Projected Fringe Profilometry

Cited by 52 publications

References 15 publications

High precision 3D measurement using area modulated phase-shifting binary patterns

High precision 3D measurement using area modulated phase-shifting binary patterns

Simple and accurate empirical absolute volume calibration of a multi-sensor fringe projection system

Study on phase error for partial intensity saturation in phase measuring profilometry

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