Algorithm of 3D Virtual Reconstruction of Ancient Buildings in Qing Dynasty Based on Image Sequence

Chuan Lu,Jian Su

doi:10.1155/2021/8388480

Abstract

Aiming at the problem of low accuracy and poor integrity of traditional Qing Dynasty ancient architecture 3D virtual reconstruction algorithm, a 3D virtual reconstruction algorithm of Qing Dynasty ancient architecture based on image sequence is proposed. Acquire the sequence images of ancient buildings in the Qing Dynasty through the pinhole camera model, analyze the projective space and reconstruction space of the sequence images, redefine the similarity measurement coefficient according to the improved 2DPCA-SIFT feature matching algorithm, match the feature points of the ancient architecture images in the Qing Dynasty, and use random sampling to be consistent. The algorithm solves the basic matrix, removes the interference error in the image reconstruction process, and realizes the design of the three-dimensional reconstruction algorithm through image sequence fusion. The experimental results show that, compared with the existing methods, the completeness of the three-dimensional virtual reconstruction 3D model of ancient Qing Dynasty buildings constructed by the designed algorithm is 87.26% on average, and the completeness and accuracy of the 3D model construction of the subparts of the ancient Qing Dynasty buildings of this method are better. The height of the building fully shows that the designed building has good performance in the construction of the three-dimensional model of ancient buildings in the Qing Dynasty.

Highlights

With the development of the economy and the gradual improvement of people’s living standards, people are paying more and more attention to the protection of historical sites
One is to scan and measure physical buildings, convert them into digital information, and build a basic model, continue to render the basic model, and get the restoration results. e ancient buildings are preserved in digital form; the second is to directly construct and process the model based on historical data to obtain the restoration results and compare the restoration results with the ancient buildings in order to guide the restoration work of the ancient buildings
Construct a three-dimensional model [1]. is method generally uses the two-dimensional geographic information system (GIS) data generated by the ground total station survey or aerial photogrammetry method, the paper map, and the two-dimensional plane data provided by computer-aided design (CAD) and other height auxiliary data to carry out geometric interactive modelling to reconstruct the ancient building model. is modelling method has low cost, mature development, and wide application

Summary

Chuan Lu

Aiming at the problem of low accuracy and poor integrity of traditional Qing Dynasty ancient architecture 3D virtual reconstruction algorithm, a 3D virtual reconstruction algorithm of Qing Dynasty ancient architecture based on image sequence is proposed. Acquire the sequence images of ancient buildings in the Qing Dynasty through the pinhole camera model, analyze the projective space and reconstruction space of the sequence images, redefine the similarity measurement coefficient according to the improved 2DPCA-SIFT feature matching algorithm, match the feature points of the ancient architecture images in the Qing Dynasty, and use random sampling to be consistent. E experimental results show that, compared with the existing methods, the completeness of the three-dimensional virtual reconstruction 3D model of ancient Qing Dynasty buildings constructed by the designed algorithm is 87.26% on average, and the completeness and accuracy of the 3D model construction of the subparts of the ancient Qing Dynasty buildings of this method are better.

Introduction

Evalution base matrix

Findings

Model construction completeness