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Title: Three-dimensional visual modelling of geological information of hydraulic engineering based on surface constraint reconstruction

Authors: Wei Jing; Wang Xuejuan; Wen Xiaolong

Addresses: School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xu Zhou, 221116, China; College of Construction Management, Jiangsu Vocational Institute of Architectural Technology, Xu Zhou, 221116, China ' Jiangsu Subei Land Real Estate Assessment and Survey Consulting Ltd., Xu Zhou, 221000, China ' College of Civil Engineering, Hunan City University, Yiyang, Hunan, 413000, China

Abstract: In order to solve the problems of big errors in results and weak spatial expression ability of the existing three-dimensional visual modelling methods for geological information of hydraulic engineering, a three-dimensional visual modelling method of geological information of hydraulic engineering based on surface constraint reconstruction is proposed. Geological information of large-scale hydraulic engineering is loaded into an expert image processing system through the sparse scatterplot analysis method to construct a spatial scatterplot model for geological information distribution; adaptive feature matching is performed to the geological information through the template matching method, and edge contour features of the three-dimensional visual image are extracted through surface interpolation and vector edge clipping method; information enhancement and local profile horizon reconstruction are performed for the three-dimensional reconstruction image about geological information of large-scale hydraulic engineering through the wavelet domain feature decomposition method. Simulation results show that the method proposed in this paper can provide high accuracy in visual modelling of large-scale hydraulic engineering geological information with error of only 0.04 mm, strong spatial expression ability of three-dimensional visual modelling and relatively high matching of feature points, so it can provide good three-dimensional reconstruction effect of geological information.

Keywords: hydraulic engineering; geological information; three-dimensional visual modelling; image.

DOI: 10.1504/IJESMS.2019.098905

International Journal of Engineering Systems Modelling and Simulation, 2019 Vol.11 No.1, pp.11 - 18

Received: 19 Jun 2018
Accepted: 15 Sep 2018

Published online: 28 Mar 2019 *

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