High-speed 3D shape measurement using a rotary mechanical projector

Liu, Yihang; Zhang, Qican; Liu, Yuankun; Xin, Yu; Hou, Yanli; Chen, Wenjing

doi:10.1364/oe.419206

Cited by 19 publications

(5 citation statements)

References 37 publications

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“…The use of mechanical projectors [50] improves the re time performance of 3D reconstruction. Liu et al utilized a rapid rotating mechani projector (RMP) [51], which can be obtained with a shorter camera exposure time throu the error diffusion binary encoding method and chrome plating technology. High-qual projected fringes, while introducing a probability distribution function algorithm correct errors, ensuring the accuracy of the corresponding 3D shape measurement syste Zhang et al utilized a white plane calibration target matrix [52] to streamline the paral axis structured light system and enhance the accuracy of the 3D reconstruction model.…”

Section: Structured Lightmentioning

confidence: 99%

A Comprehensive Review of Vision-Based 3D Reconstruction Methods

Zhou,

Wu,

Zuo

et al. 2024

Sensors

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With the rapid development of 3D reconstruction, especially the emergence of algorithms such as NeRF and 3DGS, 3D reconstruction has become a popular research topic in recent years. 3D reconstruction technology provides crucial support for training extensive computer vision models and advancing the development of general artificial intelligence. With the development of deep learning and GPU technology, the demand for high-precision and high-efficiency 3D reconstruction information is increasing, especially in the fields of unmanned systems, human-computer interaction, virtual reality, and medicine. The rapid development of 3D reconstruction is becoming inevitable. This survey categorizes the various methods and technologies used in 3D reconstruction. It explores and classifies them based on three aspects: traditional static, dynamic, and machine learning. Furthermore, it compares and discusses these methods. At the end of the survey, which includes a detailed analysis of the trends and challenges in 3D reconstruction development, we aim to provide a comprehensive introduction for individuals who are currently engaged in or planning to conduct research on 3D reconstruction. Our goal is to help them gain a comprehensive understanding of the relevant knowledge related to 3D reconstruction.

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Section: Structured Lightmentioning

confidence: 99%

A Comprehensive Review of Vision-Based 3D Reconstruction Methods

Zhou,

Wu,

Zuo

et al. 2024

Sensors

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“…Meanwhile, in their exploration of product measurement, Ref. [7] employed a high-speed 3D camera system. The authors of [8] investigated the application of CCHS for assessing the surface properties of product layers in [9].…”

Section: Introductionmentioning

confidence: 99%

Optimization of Sustainable Production Processes in C45 Steel Machining Using a Confocal Chromatic Sensor

Jurko,

Paľová,

Michalík

et al. 2024

Lubricants

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Metal machining production faces a myriad of demands encompassing ecology, automation, product control, and cost reduction. Within this framework, an exploration into employing a direct inspection of the machined area within the work zone of a given machine through a confocal chromatic sensor was undertaken. In the turning process, parameters including cutting speed (A), feed (B), depth of cut (C), workpiece length from clamping (D), and cutting edge radius (E) were designated as input variables. Roundness deviation (Rd) and tool face wear (KM) parameters were identified as output factors for assessing process performance. The experimental phase adhered to the Taguchi Orthogonal Array L27. Confirmatory tests revealed that optimizing process parameters according to the Taguchi method could enhance the turning performance of C45 steel. ANOVA results underscored the significant impact of cutting speed (A), feed (B), depth of cut (C), and workpiece length from clamping (D) on turning performance concerning Rd and KM. Furthermore, initial regression models were formulated to forecast roundness variation and tool face wear. The proposed parameters were found to not only influence the machined surface but also affect confocal sensor measurements. Consequently, we advocate for the adoption of these optimal cutting conditions in product production to bolster turning performance when machining C45 steel.

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“…While the TDPS method achieves high accuracy through independent pixel solutions, its application in dynamic scenes is limited due to the large size of the fringe sequence. Conversely, the transform-based methods, 12 – 14 requiring only a single fringe for phase calculation, boast high efficiency 15 – 18 The Fourier transform (FT) algorithm, 19 – 21 a typical transform-based technique, transforms the fringe pattern into the frequency domain for phase extraction.…”

Section: Introductionmentioning

confidence: 99%

“…Conversely, the transform-based methods, [12][13][14] requiring only a single fringe for phase calculation, boast high efficiency. [15][16][17][18] The Fourier transform (FT) algorithm, [19][20][21] a typical transform-based technique, transforms the fringe pattern into the frequency domain for phase extraction. Despite its high computation efficiency, the band-pass filtering process in the FT algorithm may compromise accuracy in edge regions.…”

Section: Introductionmentioning

confidence: 99%

Dynamic three-dimensional measurement by spatial-domain phase-shifting method based on fringe projection profilometry

Zhu,

Deng,

Zhang

et al. 2024

Opt. Eng.

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The Fourier transform (FT) method is one of the foremost single-fringe techniques for high-speed three-dimensional (3D) surface reconstruction within the fringe projection profilometry (FPP). Despite its widespread use, the intrinsic issue of spectrum leakage in the FT method leads to diminished precision in regions of image edge. We introduce a spatial-domain phase-shifting (SDPS) method, employing pixel spatial translation to extract the phase-shifting subfringe sequence, followed by the least-square fitting technique to accurately determine surface phase information. Simulation analyses for continuous and discontinuous structures are conducted to affirm that the SDPS method could mitigate the edge error in comparison to the FT method. Meanwhile, the factors that may influence the performance of the proposed method are also analyzed, including the background, modulation, and spatial translation distance. Experiments of static and dynamic scenarios are carried out to further demonstrate that the SDPS method could achieve improved measurement precision in edge areas when compared with the FT method and has the potential to be applied in dynamic 3D surface reconstruction with high precision and efficiency in FPP.

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High-speed 3D shape measurement using a rotary mechanical projector

Cited by 19 publications

References 37 publications

A Comprehensive Review of Vision-Based 3D Reconstruction Methods

A Comprehensive Review of Vision-Based 3D Reconstruction Methods

Optimization of Sustainable Production Processes in C45 Steel Machining Using a Confocal Chromatic Sensor

Dynamic three-dimensional measurement by spatial-domain phase-shifting method based on fringe projection profilometry

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