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Edge-aware joint neural denoising and normal estimation for mobile and handheld laser point clouds
Published 2025-07-01“…It is customary to enhance their quality by denoising the data by means of point position updates where current approaches independently predict the displacement per point. …”
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Point set registration-based image stitching in unmanned aerial vehicle transmission line inspection
Published 2025-08-01“…Abstract To address the limitations of narrow field of view and insufficient target information in single frame images obtained by airborne cameras, this paper proposed a novel image stitching method using an improved robust point set registration algorithm based on neighborhood and local structural features(PR-NLS). …”
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Building Lightweight 3D Indoor Models from Point Clouds with Enhanced Scene Understanding
Published 2025-02-01“…Indoor scenes often contain complex layouts and interactions between objects, making 3D modeling of point clouds inherently difficult. In this paper, we design a divide-and-conquer modeling method considering the structural differences between indoor walls and internal objects. …”
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Cytoprotection of the Gastric Mucosa and Eradication Therapy of <i>Helicobacter Pylori</i> Infection: Points of Conjugation
Published 2025-06-01“…Aim: to present data on the main components of gastric mucosal protection and the possibilities of H. pylori eradication and cytoprotective pharmacotherapy for its restoration.Key points. The various components of the protection system correspond to the pre-epithelial, epithelial and post-epithelial levels in accordance with the structural organization of the gastric mucosa. …”
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506
THE RELATIONSHIP BETWEEN THE STRUCTURE OF PHASE EQUILIBRIUM DIAGRAM AND THE STRUCTURE OF FLOWSHEET DIAGRAMS OF MULTIPHASE QUATERNARY MIXTURES SEPARATION
Published 2016-08-01“…In this work the structures of phase equilibrium diagrams of multiphase four-component systems n-hexane (n-heptane, n-octane) - cyclohexane - furfural - water were investigated. …”
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Research on the distribution structure of 2D piston electro-hydraulic pump based on fluid-structure interaction
Published 2024-10-01“…The space cam mechanism serves as the primary force-bearing structure during its operation. Excessive wear occurs at the highest point of the space cam when subjected to significant axial forces, which leads to deviations between the motion law of the 2D piston and the theoretical design. …”
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FARVNet: A Fast and Accurate Range-View-Based Method for Semantic Segmentation of Point Clouds
Published 2025-04-01“…This paper presents FARVNet, a novel real-time Range-View (RV)-based semantic segmentation framework that explicitly models the intrinsic correlation between intensity features and spatial coordinates to enhance feature representation in point cloud analysis. Our architecture introduces three key innovations: First, the Geometric Field of View Reconstruction (GFVR) module rectifies spatial distortions and compensates for structural degradation induced during the spherical projection of 3D LiDAR point clouds onto 2D range images. …”
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LiDAR point cloud denoising for individual tree extraction based on the Noise4Denoise
Published 2025-01-01“…The processing of LiDAR point cloud data is of critical importance in the context of forest resource surveys, as well as representing a pivotal element in the realm of forest physiological and ecological studies.Nonetheless, conventional denoising algorithms frequently exhibit deficiencies with regard to adaptability and denoising efficacy, particularly when employed in relation to disparate datasets.To address these issues, this study introduces DEN4, an unsupervised, deep learning-based point cloud denoising algorithm designed to improve the accuracy of single tree segmentation in LiDAR point clouds.DEN4 introduces a multilevel noise separation module that effectively distinguishes between signal and noise, thereby improving the signal-to-noise ratio (SNR) and reducing the error.The experimental results demonstrate that DEN4 significantly outperforms traditional denoising methods in several key metrics, including mean square error (MSE), SNR, Hausdorff distance, and structural similarity index (SSIM).In the 60 sample dataset, DEN4 achieved the best mean and standard deviation on all metrics: Specifically, the MSE mean was found to be 0.0094, with a standard deviation of 0.0008, the SNR mean was 149.1570, with a standard deviation of 0.5628, the Hausdorff mean was 0.8503, with a standard deviation of 0.0947, and the SSIM mean was 0.8399, with a standard deviation of 0.0054. …”
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SP-Pillars: An Efficient LiDAR 3D Objects Detection Framework With Multi-Scale Feature Perception and Optimization
Published 2025-01-01Subjects: Get full text
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Comparative analysis of Neoclassical and Behavioral Economics in their policy approach toward poverty alleviation
Published 2021-11-01Subjects: Get full text
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An Investigation on Three-Point Bending of Foam-Filled Double Tubes and Parameter Optimization Using Response Surface Methodology
Published 2021-04-01“…The goal was to create an optimal structure that could absorb the most energy while weighing the least. …”
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Topological Eigenvalue Braiding and Quantum State Transfer Near a Third-Order Exceptional Point
Published 2025-05-01“…Non-Hermitian systems exhibit a variety of unique features rooted in the presence of exceptional points (EPs). The distinct topological structure in the proximity of an EP gives rise to counterintuitive behaviors absent in Hermitian systems, which emerge after encircling the EP either quasistatically or dynamically. …”
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3D Building Modelling from ALS Point Clouds by Delaunay Triangulation and Graph Theories
Published 2024-10-01“…This method simplifies the process of 3D roof reconstruction, and the experiment results demonstrate that the proposed method can effectively reconstruct 3D roof structures from point clouds.…”
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Abu Dhabi Public Health Workforce Development: Learning Points From the Comparison of Six Countries
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Vyacheslav Ivanov’s Tragedy Prometheus and his Poem The Dream of Melampus: Obvious and Hidden Points of Convergence
Published 2019-06-01“…This model becomes reenacted in Prometheus, however it not so much determines the structure of space as it fosters the development of the tragic plot and the character system of the play. …”
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SECTOR LOCALIZATION, PARAMETERIZATION AND IDENTIFICATION OF REFERENCE POINTS BASED ON CORNER COEFFICIENTS FOR ALIGNING THE OVERLAPPING IMAGES
Published 2019-06-01“…Algorithms of sector localization and parameterization of reference points in the wavelet domain for aligning the overlapping images based on the utility of corner coefficients to describe the contour structure in the vicinity of the reference point are proposed. …”
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