Generating an orthophoto from SfM calculation with the low-quality air photographs taken in the 1964 Niigata earthquake

Hinako SUZUKI; Shoichiro UCHIYAMA

Presentation information

Oral

Symbol H (Human Geosciences) » H-TT Technology & Techniques

[H-TT33_2AM1] New horizons brought by UAV remote sensing

Fri. May 2, 2014 9:00 AM - 10:45 AM 211 (2F)

Convener:*Akihiko Kondoh(Center for Environmental Remote Sensing, Chiba University), Hitoshi Hasegawa(Dep.Geography Kokushikan Univ.), Yuji Kuwahara(Department of Urban and Civil engineering, school of Engineering, Ibaraki University), Hiroshi Inoue(National Research Institute for Earth Science and Disaster Prevention), Chair:Hiroshi Inoue(National Research Institute for Earth Science and Disaster Prevention), Hitoshi Hasegawa(Dep.Geography Kokushikan Univ.)

9:00 AM - 9:15 AM

[HTT33-P02_PG] Generating an orthophoto from SfM calculation with the low-quality air photographs taken in the 1964 Niigata earthquake

3-min talk in an oral session

*Hinako SUZUKI¹, Shoichiro UCHIYAMA¹ (1.National Research Institute for Earth Science and Disaster Prevention (NIED))

Keywords:structure from motion (SfM), low quality aerial photograph, 1964 Niigata earthquake, ground control point (GCP), orthophoto

This study shows that generating the orthophoto from low quality aerial photographs using structure from motion (SfM).National Research Institute for Earth Science and Disaster Prevention (NIED) is archiving a lot of old aerial photographs and its original roll films. However, some films are deteriorating. One of them is the 1964 Niigata earthquake's film.This deteriorated photographs were taken 50 years ago, nevertheless, the result of SfM calculating were sufficient quality and generated orthophoto with 0.2 m resolution.As a result, low quality aerial photographs are available to utilize for SfM.