Three-dimensional visual modelling of geological information of hydraulic engineering based on surface constraint reconstruction. (28th March 2019)

• Record Type: Journal Article
• Authors: Jing, Wei; Xuejuan, Wang; Xiaolong, Wen
• Is Part Of: International journal of engineering systems modelling and simulation. Volume 11:Number 1(2019)
• Page Start: 11
• Page End: 18
• Publication Date: 2019-03-28
• Subjects: hydraulic engineering -- geological information -- three-dimensional visual modelling -- image; Engineering systems -- Computer simulation -- Periodicals; Engineering systems -- Mathematical models -- Periodicals; 620.0042
• Languages: English
• ISSNs: 1755-9758

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.