Simplification method for feature preserving of efficient triangular mesh model

Liming, 段黎明 Duan; Hui, 邵 辉 Shao; Zhong-ming, 李中明 Li; Gui, 张 桂 Zhang; Shang-peng, 杨尚朋 Yang

doi:10.3788/ope.20172502.0460

Cited by 6 publications

(2 citation statements)

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“…After different materials were given to different parts, in order to better maintain the characteristics of litchi fruit details, the triangular surface mesh was used to mesh the overall three-dimensional geometric model in this study [20]. The basic model was established for subsequent loading of different forces.…”

Section: Meshingmentioning

confidence: 99%

Finite element analysis of stress and strain of litchi under different clamping methods

Tao

2023

Second International Conference on Electronic Information Engineering, Big Data, and Computer Technology (EIBDCT 2023)

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Litchi fruit is rich in water and nutritional value. Machine picking can greatly reduce production costs. But if mechanical damage occurs during picking, it will seriously affect subsequent storage and transportation. In order to reduce the mechanical damage caused by excessive clamping force of the end effector on litchi, this study used the finite element model to analyze the mechanical damage caused by different clamping methods on the pericarp, sarcocarp and putamen of litchi under the basic clamping conditions. The results showed that the effect of clamping the fruit below the waist by double finger lifting was excellent. The maximum deformation of litchi was 42.06μm, the average equivalent elastic strain was 4 -10 90 . 3  and the maximum equivalent stress was 62857 Pa. This method effectively reduced the maximum stress and average strain in the process of grasping and reduced the mechanical damage caused by the end effector to the pericarp and sarcocarp. At the same time, it can provide some reference for the similar characteristics of fresh fruit picking, sorting, transportation and packaging.

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Section: Meshingmentioning

confidence: 99%

Finite element analysis of stress and strain of litchi under different clamping methods

Tao

2023

Second International Conference on Electronic Information Engineering, Big Data, and Computer Technology (EIBDCT 2023)

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“…However, the algorithm had a limited effect on the retention of the local detail features of the model. Duan Liming et al [23] proposed a mesh subdivision method that added the volume error and triangle spreading to the error measure, but its effect on the simplification of the boundary triangles was limited. Wuli W et al [24] addressed the problem that most of the existing mesh simplification algorithms could not simultaneously take into account the details, approximate simplicity ratio, and mesh quality, and proposed a dynamic error control and particle swarm optimization for the adaptive simplification optimization of triangular meshes.…”

Section: Related Workmentioning

confidence: 99%

Improved Edge Folding Algorithm for 3D Building Models Taking into Account the Visual Features

Bai,

Shen,

Huo

et al. 2023

Buildings

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Simplifying 3D building models, effectively reducing model complexity and improving mapping efficiency, is an important part of 3D GIS. In order to address the problem that the simplification basis considered by most 3D building model data compression algorithms is mainly based on geometric features and fails to retain the visual features of the model, this paper proposed a half-folding simplification algorithm for 3D building models that took the visual features into account. The algorithm incorporated regional boundary constraints in the pre-processing stage to focus on preserving the boundary features of the model, and incorporated visual constraints, such as the vertex importance, edge length, and texture, in the calculation of the edge folding cost to construct a new error metric model. The simplification order was changed by redefining the edge folding cost, and a trade-off between compression rate and retention rate was made by using half-edge folding to maximise the retention of the visual features of the building. The experimental results showed that the algorithm could effectively reduce the number of elements drawn by the system and achieve a high level of detail information retention in the visual feature region of the model with a good visual representation.

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Digital Modeling of Slope Micro-geomorphology Based on Artec Eva 3D Scanning Technology

Wang

Jin

et al. 2019

IOP Conf. Ser.: Earth Environ. Sci.

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Simplification method for feature preserving of efficient triangular mesh model

Cited by 6 publications

References 0 publications

Finite element analysis of stress and strain of litchi under different clamping methods

Finite element analysis of stress and strain of litchi under different clamping methods

Improved Edge Folding Algorithm for 3D Building Models Taking into Account the Visual Features

Digital Modeling of Slope Micro-geomorphology Based on Artec Eva 3D Scanning Technology

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