A scale-elastic discrete grid structure for voxel-based modeling and management of 3D data

Lei, Yi; Tong, Xiaochong; Qu, Ting; Qiu, Chunping; Wang, Dali; Sun, Yuekun; Tang, Jiayi

doi:10.1016/j.jag.2022.103009

Cited by 4 publications

(3 citation statements)

References 15 publications

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“…(3) Color space mapping: Following data dimensionality reduction and temporal interpolation, the data must undergo color space mapping to transform the discrete voxel information stored in the grid dataset into a coherent texture for storage (Lei et al, 2022). In the GLSL rendering process employed in this study, images are used as a data format, as they can be quickly read.…”

Section: Data Processingmentioning

confidence: 99%

Dynamic typhoon visualization based on the integration of vector and scalar fields

Feng,

Qin,

et al. 2024

Front. Mar. Sci.

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Typhoons and other marine meteorological disasters often bring significant losses to human beings, and their data are characterized by multiple sources and scales, making traditional visualization methods unable to accurately express the characteristics and movement trends of the disasters. To address the above problems, this study proposes a typhoon dynamic visualization method based on the integration of vector and scalar fields. To address the above problems, this study proposes a typhoon dynamic visualization method based on the integration of vector and scalar fields. The method uses the ray casting method to visualize the volume rendering of typhoon scalar data, proposes a hybrid interpolation method to improve the visualization efficiency, and introduces the Sobel operator to achieve the edge enhancement of the volume rendering effect. Meanwhile, a particle system approach is used for dynamic visualization of typhoon vector data, where the tedious particle motion calculation is divided into two parts: parallel tracking and dynamic rendering to improve the visualization efficiency, and the Lagrangian field representation of the particle system is achieved. The experimental results show that the typhoon visualization method proposed in this study has better comprehensive visual effects, with a rendering frame rate greater than 44, and is able to stably and smoothly express the continuous spatio-temporal dynamic visualization features of typhoon.This study is conducive to the understanding of the evolution law of marine meteorological disasters and the adoption of disaster prevention and mitigation measures, and is of great significance for the expression of marine meteorological data such as typhoons and the analysis of their spatial and temporal changes.

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Section: Data Processingmentioning

confidence: 99%

Dynamic typhoon visualization based on the integration of vector and scalar fields

Feng,

Qin,

et al. 2024

Front. Mar. Sci.

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“…On the other hand, voxel model is used in many 3D modeling fields. Lei et al [24] realized the construction of Chicago's urban three-dimensional voxel model through elastic grid-scale voxel units. In addition, the application of voxels also includes medical workpiece processing and other fields [25,26].…”

Section: Introductionmentioning

confidence: 99%

Efficient Construction of Voxel Models for Ore Bodies Using an Improved Winding Number Algorithm and CUDA Parallel Computing

Liu,

Sun,

et al. 2023

IJGI

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The three-dimensional (3D) geological voxel model is essential for numerical simulation and resource calculation. However, it can be challenging due to the point in polygon test in 3D voxel modeling. The commonly used Winding number algorithm requires the manual setting of observation points and uses their relative positions to restrict the positive and negative solid angles. Therefore, we proposed the Winding number with triangle network coding (WNTC) algorithm and applied it to automatically construct a 3D voxel model of the ore body. The proposed WNTC algorithm encodes the stratum model by using the Delaunay triangulation network to constrain the index order of each vertex of the triangular plane unit. GPU parallel computing was used to optimize its computational speed. Our results demonstrated that the WNTC algorithm can greatly improve the efficiency and automation of 3D ore body modeling. Compared to the Ray casting method, it can compensate for a voxel loss of about 0.7%. We found the GPU to be 99.96% faster than the CPU, significantly improving voxel model construction speed. Additionally, this method is less affected by the complexity of the stratum model. Our study has substantial potential for similar work in 3D geological modeling and other relevant fields.

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“…Among the many discrete mesh generation algorithms, the cutting-edge advancing front technique (AFT) algorithm [24][25][26] has attracted the widest usage given its good boundary fitting performance, the high quality of the generated discrete mesh [27,28], and its smooth and stable dense transition between discrete meshes. Research based on the triangulated network generation algorithm can be divided into two streams based on their objectives.…”

Section: Introductionmentioning

confidence: 99%

A Front Advancing Adaptive Triangular Mesh Dynamic Generation Algorithm and Its Application in 3D Geological Modeling

Lei

et al. 2023

Sustainability

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The traditional advancing front technique algorithm encounters many problems due to the complex geometric characteristics of the front edge shape. These problems include poor quality, a slow algorithm, low robustness, and the inability of the mesh unit to converge. To address these problems, an optimized adaptive triangular mesh dynamic generation algorithm called R-TIN is proposed and applied to 3D engineering geological modeling in this study. Firstly, all the shapes involved in advancing the front edge inward were classified into four types, and then the optimal triangular unit was constructed by using the candidate mesh point heuristic algorithm. Then, the robustness of this algorithm could be maintained by the graded concession of the included angle threshold in the adjacent front-line segments. Finally, based on 160 engineering geological boreholes in the study area, the 3D engineering geological model was constructed and the accuracy and visualization effect of the overall geological model have been greatly improved, which can better present the spatial distribution of strata and lithological characteristics. At the same time, this algorithm can be used in geoscience information services to support the regional or national exploration of resources and energy, sustainable development and utilization, environmental protection and the prevention of geological disasters.

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A scale-elastic discrete grid structure for voxel-based modeling and management of 3D data

Cited by 4 publications

References 15 publications

Dynamic typhoon visualization based on the integration of vector and scalar fields

Dynamic typhoon visualization based on the integration of vector and scalar fields

Efficient Construction of Voxel Models for Ore Bodies Using an Improved Winding Number Algorithm and CUDA Parallel Computing

A Front Advancing Adaptive Triangular Mesh Dynamic Generation Algorithm and Its Application in 3D Geological Modeling

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