turk j remote sens gis

Türk Uzaktan Algılama ve CBS Dergisi

2717-7165

Halil AKINCI

10.48123/rsgis.950887

Computer Software

Bilgisayar Yazılımı

Akıllı Şehir Uygulamaları İçin Prosedürel 3B Kent Modeli Oluşturulması ve Fotorealistik 3B Görselleştirme

Creating a Procedural 3D City Model for Smart City Applications and Photorealistic 3D Visualization

https://orcid.org/0000-0001-6216-560X

Şenyurdusev

Güçlü

İSKİ Coğrafi Bilgi Sistemleri Şube Müdürlüğü

https://orcid.org/0000-0001-7415-1862

Doğru

Ahmet Özgür

İSTANBUL TEKNİK ÜNİVERSİTESİ, İNŞAAT FAKÜLTESİ

09 29 2021

2 2 67 75 06 11 2021 08 27 2021

2020

Turkish Journal of Remote Sensing and GIS

Prosedürel modelleme teknikleri kullanılarak gerekli öznitelik bilgilerini barındıran 2 boyutlu coğrafi bilgi sistemi verilerinin gerçekçi bir şekilde 3 boyutlu olarak görselleştirilebilmesi mümkündür. Prosedürel modelleme tekniğinin sağladığı önemli avantaj; vektör verilerde depolanan öznitelik verilerinin kullanılarak modelin gerekli olduğu anda yeniden türetilebilmesidir. Bu şekilde; hem kapsamlı ve detaylı bir modelin coğrafi veri tabanına depolanmasından kaynaklanan yüksek veri boyutu azalmakta, hem de doğru şekilde kodlanmış bilgisayar algoritmaları ile gerçekleştirilen model üretim süreçlerinde kişisel hataların önüne geçilebilmektedir. Ayrıca önerilen yöntem ile modeller en uygun sayıda poligon ve standart uygulanan çizim teknikleri ile oluşturulabilmektedir. Bu çalışmada 2 boyutlu ve açık kaynaklı OpenStreetMap vektör verileri, “Shuttle Radar Topography Mission” (SRTM) sayısal yükseklik model verileri ve farklı kaynaklardan sağlanan uydu görüntüleri kullanılarak 3 boyutlu kent modeli oluşturulmasına olanak sağlayan yaklaşım açıklanmış ve bu yaklaşımın faklı dünya kent merkezlerinin modellenmesinde kullanılması ile elde edilen sonuçlar paylaşılmıştır. Gerçekleştirilen çalışmada açık coğrafi bilgi sistemi verileri kullanılarak prosedürel modelleme tekniklerinin etkin bir şekilde uygulanması ve bu verilerden 3 boyutlu kent modeli üretimi sağlanmıştır. Akıllı şehir yönetimi ve karar destek çalışmalarında kullanılabilecek ve dijital ikiz uygulamalarında da belirli ölçüde kullanılabilecek modelleme teknikleri açıklanmıştır.

By using procedural modeling techniques, it is possible to visualize 2D geographic information system data containing necessary attribute information in a realistic 3D manner. The important advantage of the procedural modeling technique is that it enables the regeneration of the model whenever it is needed using the attributes stored in the vector data. In this way; The high data size resulting from storing a comprehensive and detailed model in a geographic database is reduced, and personal errors can be avoided in model production processes carried out with correctly coded computer algorithms. In addition, with the proposed method, models can be created with the most appropriate number of polygons and standard drawing techniques. In this study, the approach that enables the creation of a 3D city model using 2D and open source OpenStreetMap vector data, “Shuttle Radar Topography Mission” (SRTM) digital elevation model data and satellite images obtained from different sources is explained. In this study, effective application of procedural modeling techniques was ensured by using open geographic information system data and 3D city model is produced using these data. Modeling techniques that can be used in smart city management and decision support studies and that can be used in digital twin applications to a certain extent are explained.

3B kent modeli Dijital ikiz Prosedürel modelleme

3D city model Digital twin Procedural modeling

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