Abstract

Abstract. With the rapid development of the oblique photogrammetry, many cities have built some real 3D model with this technology. Although it has the advantages of short period, high efficiency and good air angle effect, the near ground view angle of these real 3D models are not very good. With increasing development of smart cities, the requirements of reality, practicality and accuracy on real 3D models are becoming higher. How to produce and improve the real 3D models quickly has become one of the hot research directions of geospatial information. To meet this requirement In this paper, Combined with the characteristics of current oblique photogrammetry modeling and the terrestrial photogrammetry, we proposed a new technological process, which consists of close range sensor design, data acquisition and processing. The proposed method is being tested by using oblique photography images acquired. The results confirm the effectiveness of the proposed approach.

Highlights

  • The oblique photography technology has been a new technology developed in recent years

  • ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Volume IV-3, 2018 ISPRS TC III Mid-term Symposium “Developments, Technologies and Applications in Remote Sensing”, 7–10 May, Beijing, China we combined the oblique photogrammetry images with the terrestrial data to construct the more perfect real 3D model, which is better in the geometry and the texture

  • According to the photogrammetry principle, the overlap between two adjacent cameras is not less than 30%. to acquire the modeling data, the new device is installed on the vehicle top

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Summary

INTRODUCTION

The oblique photography technology has been a new technology developed in recent years. With several cameras on one air platform, it can obtain the top and sides data of the buildings synchronously. This new technology has improved the limitation of the traditional photogrammetry because of the high overlapped and multi-view data (Yang Guodong, Wang Mingshui). The real 3D model constructed by this technology can meet some requirement of the smart city construction. Until now, it has been used for emergency command, homeland security, urban management etc. The near ground parts of the real 3D model constructed by ithas some deformation(Qu Lin etc), texture fuzzy, which can’t meet the higher requirement of the smart city construction. We intended to improve the real 3D by combining the terrestrial photogrammetry data with the oblique photogrammetry

The design of the process
Terrestrial images acquire technology
The overview of the experimental area
Data acquisition
Findings
CONCLUSIONS
Full Text
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