Bosai Solution ID : JBP00105

Asia Air Survey Co., Ltd

Three Dimensional Model Construction Method for the Bridge Maintenance

Bridge model constructed by the photos taken by UAV


The UAV equipped with Visual SLAM made it possible to shoot the entire bridge including the inside of the bridge.A three-dimensional bridge model is constructed by using the photographs taken by UAV and the abnormality and damage of the bridge are accurately recorded by using the bridge inspection record system.

Solution Illustrated


In Japan, large-scale disasters such as earthquakes and floods occur frequently. As a result, a minor to significant failure of the road and bridge may occur and hence the emergency inspection in the event of the disaster is necessary. In order to accurately grasp the accurate failure state of the bridge after the disaster, 3D model constructed at the time of the regular inspection will be used.

Exposition of the Solution

1.  3D model Bridge Construction Method during normal conditions
1) Shooting Method for the bridge using UAV

2) 3D model Bridge Construction Method by sfM processing

2.  Bridge inspection record system
1) Damage Confirmation

2) Recording Damage Information


Achievements of Examples

UAV driven Bridge Inspection Technology Verification in Japan

Corporate Profile

Asia Air Survey Co., Ltd

Shinyuri 21 Building 3F, 1-2-2 Manpukuji, Asao-ku, Kawasaki-shi, Kanagawa Prefecture 215-0004, Japan

Tel. : +81-44-969-7510

E-mail :

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