Multi-view multi-label-based online method with threefold correlations and dynamic updating multi-region

2022 ◽  
Author(s):  
Changming Zhu ◽  
Shuaiping Guo ◽  
Dujuan Cao ◽  
YiTing Zhou ◽  
Duoqian Miao ◽  
...  
Keyword(s):  
Dynamic Updating

scholarly journals Local Dynamic Updating Method of Orebody Model Based on Mesh Reconstruction and Mesh Deformation

Minerals ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1232
Author(s):  
Zhaopeng Li ◽  
Deyun Zhong ◽  
Zhaohao Wu ◽  
Liguan Wang ◽  
Qiwang Tang
Keyword(s):  
Mesh Deformation ◽  
Local Dynamic ◽  
Geological Interpretation ◽  
Model Based ◽  
Mesh Model ◽  
Model Update ◽  
Geological Information ◽  
Mesh Reconstruction ◽  
Dynamic Updating ◽  
Region Search

In this paper, to update the orebody model based on the given interpreted geological information, we present a local dynamic updating method of the orebody model that allows the interactive construction of the constraint deformation conditions and the dynamic updating of the mesh model. The rules for constructing deformation constraints based on the control polylines are discussed. Because only part of the model is updated, the updated mesh is effective and the overall quality is satisfactory. Our main contribution is that we propose a local dynamic updating method for the orebody model based on mesh reconstruction and mesh deformation. This method can automatically update a given 3D orebody model based on a set of unordered geological interpretation lines. Moreover, we implement a deformation neighborhood region search method based on the specified ring radius and a local constrained mesh deformation algorithm for the orebody model. Finally, we test the method and show the model update results with real geological datasets, which proves that this method is effective for the local updating of orebody models.

scholarly journals An Algorithm of Automatic Administrative Region Index Map Generation for National-level Map Production

2019 ◽  
Vol 2 ◽  
pp. 1-4
Author(s):  
Ruolei Wang ◽  
Jianjun Liu ◽  
Zhao Li ◽  
Jun Zhang
Keyword(s):  
National Level ◽  
Production Lines ◽  
Recognition Error ◽  
Multi Scale ◽  
Administrative Region ◽  
Database Construction ◽  
Map Generation ◽  
Error Accumulation ◽  
Dynamic Updating ◽  
Information Database

<p><strong>Abstract.</strong> Since the project of dynamic updating of national fundamental geographic information database was launched, National Geomatics Center of China has published the newest version of multi-scale databases, derived databases and subdivision maps once a year. As one of the derived cartographic databases, administrative region index database allows users to find maps covering their regions of interest quickly by input the name or number of the relevant map. Due to the boundaries or attributes of some administrative regions may often change, updating of administrative region index database is necessary. To improve efficiency and quality in the national-level map production and database construction, an algorithm of administrative region index map automatic generalization has been proposed in this paper to replace the traditional manual production lines, which are time-consuming and uncontrollable in quality. The method goes in depth with handling coordinate recognition error accumulation and residue lines caused by the clip.</p>

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