Contained in:
Book Chapter

Visualization of Weather-Aware Ambient Heat Risks With Global Illumination in Game Engine

  • Naotaka Sumida
  • Taira Ozaki
  • Satoshi Kubota
  • Hiroshige Dan
  • Yoshihiro Yasumuro

In recent years, the risk of heat stroke has been increasing due to global warming and other factors, and the Ministry of the Environment has been using the heat index to alert people in urban areas. Still, citizens need help knowing the detailed risk information for their neighborhoods. The heat index considers the human body's heat balance and is measured with specialized instruments, so comprehensive and high-density measurement is difficult. In this research, by using global illumination (GI) and primary weather data obtained from the Open Weather Map API for each area, we can realistically render the sunlight condition considering the weather and map and visualize the heat index per pixel based on shaded CG. Furthermore, by reconstructing urban 3D geometry from Google Maps, we have developed a system that visualizes the ever-changing heat index distribution for an arbitrary location in real time. The system has shown the possibility of reducing the number of heat stroke patients by using this system

  • Keywords:
  • heat index,
  • WBGT (wet bulb globe temperature),
  • real-time global illumination,
  • game engine,
+ Show More

Naotaka Sumida

Kansai University, Japan

Taira Ozaki

Kansai University, Japan - ORCID: 0000-0002-2539-3707

Satoshi Kubota

Kansai University, Japan

Hiroshige Dan

Kansai University, Japan - ORCID: 0000-0002-2270-6675

Yoshihiro Yasumuro

Kansai University, Japan - ORCID: 0000-0001-8317-3123

  1. Ministry of Health, Labour and Welfare (1999~2020), Number of deaths due to heat stroke Vital Statistics (Fixed Number), https://www.mhlw.go.jp/toukei/saikin/hw/jinkou/tokusyu/necchusho20/dl/kenbetsu.pdf,
  2. (Getting 2023,8,9). (In Japanese)
  3. Ministry of Internal Affairs and Communications (2022), Emergency medical evacuations due to heat stroke in 2022 (May to September),
  4. https://www.fdma.go.jp/disaster/heatstroke/items/r4/heatstroke_geppou_202205-09.pdf, p4, (Getting 2023,8,9).
  5. (In Japanese)
  6. Ministry of Health, Labour and Welfare (2018-2022), Number of casualties due to heat stroke by time of day (2018-2022), https://www.mhlw.go.jp/content/11200000/000900487.pdf, p6, (Getting 2023,8,9). (In Japanese)
  7. Ministry of the Environment (2022), Observation of the national heat index (WBGT) from September 26 to October 2, 2022, and the relationship between the WBGT and the number of emergency medical evacuees due to heat stroke (Report No. 23, FY2022),
  8. https://www.wbgt.env.go.jp/pdf/R04_heatillness_report_23.pdf, (Getting 2023,8,9). (In Japanese)
  9. T. Ozaki and H. Abe (2019), Analysis of Relationship between Usage Characteristics and Heat Environment in Parks for Health Promotion, Vol. 75, No. 6, pp. II-29-II-37. (In Japanese)
  10. Ministry of the Environment (2022), Heat Stroke Prevention Website, https://www.wbgt.env.go.jp/en/
  11. Ministry of the Environment, MEXT (2021), Guideline for the Preparation of Heat Stroke Prevention Guidelines for Schools (May 2021), https://www.mext.go.jp/content/210528-mxt_kyousei01-000015427_02.pdf,
  12. (Getting 2023,8,9). (In Japanese)
  13. M.Okada, M. Okada and H. Kusaka (2013). Wide-area application and parameter adjustment of the Okada-Hisaka black-bulb temperature estimation equation, Heat Island, Vol. 8, pp. 13-21. (In Japanese)
  14. Y. Yasumuro, K. Ichihara, Y. Nishiura, D. Ikegawa, M. Hayashi and T. Ozaki (2018), Estimation of WBGT using 3DCG and its application, Journal of Civil Engineering G(Environment), Vol. 74, No. 6, pp. II-1-II-8. (In Japanese)
  15. N. Sumida, T. Ozaki, S. Kubota, H. Dan, Y. Yasumuro (2022), Visualization of Environmental Heat Risks with Global Illumination in Game Engine, Proceedings of the 22nd International Conference on Construction Application of Virtual Reality (CONVR2022), pp. 677-683.
  16. SILVENNOINEN, A. and LEHTINEN, J. (2017): Real-time Global Illumination by Precomputed Local Reconstruction from Sparse Radiance Probes, ACM Journals, ACM Transactions on Graphics, Vol. 36, No. 6, pp. 1-13.
  17. K. Kurachi (2007), CG Magic: Rendering, Ohmsha, 2007. (In Japanese)
PDF
  • Publication Year: 2023
  • Pages: 133-141

XML
  • Publication Year: 2023

Chapter Information

Chapter Title

Visualization of Weather-Aware Ambient Heat Risks With Global Illumination in Game Engine

Authors

Naotaka Sumida, Taira Ozaki, Satoshi Kubota, Hiroshige Dan, Yoshihiro Yasumuro

DOI

10.36253/979-12-215-0289-3.13

Peer Reviewed

Publication Year

2023

Copyright Information

© 2023 Author(s)

Content License

CC BY-NC 4.0

Metadata License

CC0 1.0

Bibliographic Information

Book Title

CONVR 2023 - Proceedings of the 23rd International Conference on Construction Applications of Virtual Reality

Book Subtitle

Managing the Digital Transformation of Construction Industry

Editors

Pietro Capone, Vito Getuli, Farzad Pour Rahimian, Nashwan Dawood, Alessandro Bruttini, Tommaso Sorbi

Peer Reviewed

Publication Year

2023

Copyright Information

© 2023 Author(s)

Content License

CC BY-NC 4.0

Metadata License

CC0 1.0

Publisher Name

Firenze University Press

DOI

10.36253/979-12-215-0289-3

eISBN (pdf)

979-12-215-0289-3

eISBN (xml)

979-12-215-0257-2

Series Title

Proceedings e report

Series ISSN

2704-601X

Series E-ISSN

2704-5846

32

Fulltext
downloads

47

Views

Export Citation

1,308

Open Access Books

in the Catalogue

1,962

Book Chapters

3,290,448

Fulltext
downloads

4,155

Authors

from 869 Research Institutions

of 64 Nations

63

scientific boards

from 340 Research Institutions

of 43 Nations

1,150

Referees

from 345 Research Institutions

of 37 Nations