Digital ortho-image production for web GIS applications

Hong Gyoo Sohn, Hyo Keun Park, Choung Hwan Park, Joon Heo

Research output: Chapter in Book/Report/Conference proceedingConference contribution


This paper presents a true ortho-image generation scheme in urban areas for web GIS application such as urban management system. Proposed scheme includes the solution of conventional problems in normal ortho-image generation. Especially, our approach is focused on the automation and consistency of ortho-image in complex urban areas. For this purpose, we generated additionally plotted DSM (Digital Surface Model), which includes roads, highlevel roads, bridges, and tunnels, automatically detected occlusion pixels and restored occlusion areas using a self-developed algorithm, and performed mosaic process using road-based seamlines. Total 2,677 aerial color images were used to create the so called true ortho-image map for Seoul metropolitan city. It turned out that the proposed method could generate true ortho-image map for urban areas with high positional accuracy and good visual consistency. The generated ortho-image database is being successfully operated by Seoul Metropolitan Aerial Photography Management Systems on the web and urban management systems.

Original languageEnglish
Title of host publicationEmerging Directions in Embedded and Ubiquitous Computing - EUC 2006 Workshops
Subtitle of host publicationNCUS, SecUbiq, USN, TRUST, ESO, and MSA, Proceedings
EditorsXiaobo Zhou, Oleg Sokolsky, Lu Yan, Lu Yan, Eun-Sun Jung, Zili Shao, Yi Mu, Dong-Chun Lee, Daeyoung Kim, Young-Sik Jeong, Cheng-Zhong Xu
PublisherSpringer Verlag
Number of pages8
ISBN (Print)3540368507, 9783540368502
Publication statusPublished - 2006
EventEUC 2006: Embedded and Ubiquitous Computing Workshops - Seoul, Korea, Republic of
Duration: 2006 Aug 12006 Aug 4

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume4097 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349


OtherEUC 2006: Embedded and Ubiquitous Computing Workshops
Country/TerritoryKorea, Republic of

All Science Journal Classification (ASJC) codes

  • Theoretical Computer Science
  • Computer Science(all)


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