Photogrammetric model optimization in digitalization of architectural heritage: Yedikule fortress

N. Sancak*, F. Uzun, K. Turhan, H. K. Saraoǧlu Yumni, D. G. Özer

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The idea of "digitalization of architectural heritage"has recently gained prominence to represent architectural and historical assets. With all these potentials, this study aims to create optimized models that can be used in serious gaming environments by presenting a method of photogrammetry. As a case study, Yedikule Fortress and its surroundings, which have a multi-layered structure that includes many cultural aspects such as Byzantine, Ottoman, and Republican periods in the historical process, have been studied within the scope of digitizing the architectural heritage to create an optimized model for gaming environments. The study was methodologically constructed in three phases: Photogrammetry, polygon modeling, and low poly/high poly baking process. The fortress and its surroundings are modeled using a high-detail point cloud and a high-poly mesh using aerial photogrammetry. The high-poly model was taken as a reference and transferred into a low-poly model as a mesh map, texture, and light characteristics. This allowed the high poly model to operate more efficiently and effectively in game engines. As a result, the study created a detailed and optimized model for the game engines to produce serious games specific to light and texture data, to be used on devices that support mixed reality (MR) technologies.

Orijinal dilİngilizce
Sayfa (başlangıç-bitiş)1403-1410
Sayfa sayısı8
DergiInternational Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - ISPRS Archives
Basın numarasıM-2-2023
Yayın durumuYayınlandı - 24 Haz 2023
Etkinlik29th CIPA Symposium on Documenting, Understanding, Preserving Cultural Heritage. Humanities and Digital Technologies for Shaping the Future - Florence, Italy
Süre: 25 Haz 202330 Haz 2023

Bibliyografik not

Publisher Copyright:
© 2023 International Society for Photogrammetry and Remote Sensing. All rights reserved.


This paper is supported by TUBITAK 1001 (The Scientific and Technological Research Council of T rkiye), project number 122K268. This paper is supported by TUBITAK 1001 (The Scientific and Technological Research Council of Türkiye), project number 122K268. The outcomes of this study are developed in the graduate course MBL 555 Digitalization of Architectural Heritage in ITU Architectural Computing Programme. We also would like to thank Doğan Kalak (ITU) and Nuri Orhan (Fatih Municipality) for their help in drone photography. Yedikule Fortress has hosted many functions in the past, such as the entrance gate of the city of Istanbul, defense walls, barley warehouse, prison, art house, and museum in the historical timeline. It has become important to document these historical values, which are important in transferring and reflecting cultural heritage in the digital environment and increasing their readability with developing technologies. This project has been undertaken in a graduate course called "Digitalization in Architectural Heritage in ITU (Istanbul Technical University) and also supported by a Tubitak (Turkish Scientific Research Institute) project. This study explains the transfer of cultural heritage to the digital environment., considered within the project's scope. Therefore, the method and the optimization process are explained further.

FinansörlerFinansör numarası
Scientific and Technological Research Council of T rkiye
Türkiye Bilimsel ve Teknolojik Araştırma Kurumu122K268
Istanbul Teknik Üniversitesi

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