Surface Deformation and Straightness Detection of Electromagnetic Launcher Based on Laser Point Clouds by Kangwei Yan, Delin Zeng, Long Cheng, Sai Tan

“…In this paper, an inspection system for electromagnetic launchers is presented which utilizes structured light scanning, time-of-flight, and laser alignment methods to acquire bore laser point clouds, and ultimately extracts the surface deformation of rails and insulators, as well as the straightness of the bore, through the registration of point cloud data. …”
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Exploring the Effects of Support Restoration on Pictorial Layers Through Multi-Resolution 3D Survey by Emma Vannini, Silvia Belardi, Irene Lunghi, Alice Dal Fovo, Raffaella Fontana

“…To this end, we conducted measurements before and after support consolidation using two complementary 3D techniques: structured-light projection to generate 3D models of the painting, tracking global shape changes in the panel, and laser-scanning microprofilometry to produce high-resolution models of localized areas, capturing surface morphology, superficial cracks, and pictorial detachments. …”
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A Local Information Entropy-Based Point Cloud Simplification Algorithm for Hazardous Chemical Warehouses by Luzhi Yuan, Ranran Han, Yun Sha, Yusong Yuan, Wenchang Zhang, Xuejun Liu, Yong Yan, Yinan Jiang

“…In automatic safety monitoring of hazardous chemical warehouses,point cloud acquisition with structured light cameras is one of the means to obtain scene data.The complex point cloud of the hazardous chemical warehouse scene has large sc-ale,uneven density and redundant information,which requires simplifying the point cloud.Inter-stack ranging is a key tech-nology for the safety monitoring of hazardous materials warehouses.Therefore,more attention should be paid to the conti-nuity of the edge of the stack point cloud and the integrity of the gap when the point cloud is simplified.The paper firstly a-dopts the optimal raster partition method for downsampling,which better retains the sparse point cloud information while sieving out the dense point cloud;then,aiming at the problem that the stack gap data is easy to be simplified,the local info-rmation entropy is calculated by the normal vector of the point cloud,and the point cloud is simplified based on it.The exp-erimental results show that the point cloud density after simplification is more uniform,and the stacking shape can be ret-ained more completely.At the same time, the method is also applicable to public datasets.…”
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Simulation of residual stress and distortion evolution in dual-robot collaborative wire-arc additive manufactured Al-Cu alloys by Runsheng Li, Guanpeng Ju, Xushan Zhao, Yanzhen Zhang, Yongzhe Li, Guofang Hu, Mingyu Yan, Yuyao Wu, Danyang Lin

“…Finite element models of single-robot and dual-robot systems were developed and experimentally validated using infrared thermography and structured light sensors. The dual-robot achieved significantly lower maximum temperature gradients in both deposition (0.47 × 105 ℃/m vs. 0.68 × 105 ℃/m) and height directions (0.94 × 105 ℃/m vs. 1.03 × 105 ℃/m) compared to the single robot, indicating more uniform temperature distribution. …”
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Mitosis-like dynamic for conservation of OAM by Viet Tran, Tianhong Wang, Pascal Bassène, Finn Buldt, Thomas A. Searles, Edwin Fohtung, Chiu Tai Law, Moussa N’Gom

“…Abstract Optical states characterized by an electromagnetic field with a spiral azimuthal phase are known as orbital angular momentum (OAM) states. Examples of structured light carrying OAM states include Laguerre-Gauss (LG) beams, which can be transformed into Hermite-Gauss (HG) beams through astigmatic transformations using cylindrical or spherical lenses. …”
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Mobile Tunnel Lining Measurable Image Scanning Assisted by Collimated Lasers by Xueqin Wu, Jian Ma, Jianfeng Wang, Hongxun Song, Jiyang Xu

“…Additionally, the lasers serve as structured light, enabling the measurement of image projection relationships. …”
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Coherence synthesis in nonlinear optics by Zihao Pang, Ady Arie

“…Moreover, we apply this method to produce two representative types of structured light beams in second harmonic generation: incoherent vortex and Airy beams. …”
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Four-Dimensional Hyperspectral Imaging for Fruit and Vegetable Grading by Laraib Haider Naqvi, Badrinath Balasubramaniam, Jiaqiong Li, Lingling Liu, Beiwen Li

“…To address this, we developed a 4D-grading pipeline that fuses visible and near-infrared (VNIR) and short-wave infrared (SWIR) hyperspectral imaging with structured-light 3D scanning to non-destructively evaluate both internal defects and external form. …”
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Order-Controllable Cylindrical Vector Vortex Beam Generation by Using Spatial Light Modulator and Cascaded Metasurfaces by Yanliang He, Huapeng Ye, Junmin Liu, Zhiqiang Xie, Xiaoke Zhang, Yuanjiang Xiang, Shuqing Chen, Ying Li, Dianyuan Fan

“…Cylindrical vector vortex (CVV) beam, which possesses both helical phase front and spatially inhomogeneous polarization, is a promising structured light for its various applications ranging from optical communication to optical field manipulation and optical microscopy. …”
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Modeling of Moth Eye Structures for Silicon Solar Cells Efficiency Enhancement by Ethar Jasim, Imad hadi Khaleel, Ali F. Al-Shawabkeh Al-Shawabkeh

“…It found that the geometry of the structure has a significant effect on the absorption and reflection spectrum, due to structure light-trapping effects, and the maximum absorption increases in visible regain reported at a width of 300 nm and height of 100 nm. …”
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Dynamic 3D shape reconstruction under complex reflection and transmission conditions using multi-scale parallel single-pixel imaging by Zhoujie Wu, Haoran Wang, Feifei Chen, Xunren Li, Zhengdong Chen, Qican Zhang

“…Depth measurement and three-dimensional (3D) imaging under complex reflection and transmission conditions are challenging and even impossible for traditional structured light techniques, owing to the precondition of point-to-point triangulation. …”
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Lighting System Control for Cataract Maturity Imaging Device by Katon Bagus Setiawan, I Komang Somawirata, Irmalia Suryani Faradisa

“…In the image processing section, the average number of images taken to obtain a good indicator was 3 times. A structured lighting system can ensure that good image results are obtained and patients feel comfortable with the light intensity used.…”
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Characterization of Deformation and Failure of Fomes fomentarius Hymenium by Synchrotron Phase‐Contrast Enhanced Micro‐Computed Tomography, In situ Compression Testing and Three‐Di... by Sophie Klemm, Tessa Nogatz, Jonathan Perrin, Timm Weitkamp, Claudia Redenbach, Claudia Fleck

“…One promising blueprint for lightweight applications is the hymenium of Fomes fomentarius, a cellular, hierarchically structured, light, strong, and failure‐resistant biological tissue. …”
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Application of three-dimensional (3D) hand–eye calibration of industrial robot in laser cladding repair for drilling bit by J. Wang, Z. Mo, J. Wang, W. Pan

“…First, the KUKA-KR20 industrial robot, along with a structural light three-dimensional (3D) scanner, is used to inspect the damaged bit, with point cloud data exported, and then the data are converted to the stereolithography (STL) file format in Geometric Studio, with the damaged region of the bit obtained after comparison with the standard model. …”
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Azimuthally Spliced Power-Exponential Phase Modulation for Focal Spot Shaping of Circular Airy Beams by Houquan Liu, Yaran Guo, Mantong Zhao, Jingfu Ye, Ronghui Xu, Libo Yuan

“…Circular airy beam (CAB) is a kind of new structured light with non-diffracting, self-focusing, and self-healing properties. …”
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The accuracy of three-dimensional facial scan obtained from three different 3d scanners. by Nichakun Tangthaweesuk, Somchart Raocharernporn

“…This study aimed to compare the accuracy (trueness and precision) and reproducibility of three 3D facial scanning systems: a laser scanner (Planmeca Proface), a dual-structured light scanner (EinScan H2), and a smartphone application (EM3D Scanner). …”
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Geometric Inspection in 3D Concrete Manufacturing: Comparison of Data Capturing Techniques by M. Maboudi, K. Mawas, M. Gerke

“…This research investigates three different approaches, namely Terrestrial Laser Scanning (TLS), Terrestrial Photogrammetry (TP), and hand-held Structured Light Scanning (SLS), for the quality inspection of two medium-sized digitally fabricated concrete components. …”
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In-Vitro Assessment of Artificial Tooth Material Wear Behavior Using 3D Wear Analysis by Sıla Yelekçi, Ayben Şentürk, Funda Akaltan

“…Specimens were scanned before and after 600,000 chewing cycles using a structured-light 3D scanner. Volumetric wear was calculated by superimposing pre- and post-test scans. …”
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Influence of meshing phase difference on the static load sharing characteristics of the coaxial double-output cylindrical gear split-combined-torsion transmission by HAN Ning, ZHU Rupeng, CHEN Weifang

“…ObjectiveThe coaxial dual-output cylindrical gear split-combined-torsion transmission system has the advantages of compact structure, light weight, and strong carrying capacity, and is widely used in aviation, shipbuilding and other fields. …”
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G-RCenterNet: Reinforced CenterNet for Robotic Arm Grasp Detection by Jimeng Bai, Guohua Cao

“…The proposed G-RCenterNet algorithm is embedded into a robotic grasping system, where a structured light depth camera captures target images, and the grasp detection network predicts the optimal grasp box. …”
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