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International Journal of Health Geographics
Article . 2024 . Peer-reviewed
License: CC BY
Data sources: Crossref
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https://dx.doi.org/10.60692/78...
Other literature type . 2024
Data sources: Datacite
https://dx.doi.org/10.60692/z1...
Other literature type . 2024
Data sources: Datacite
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Using image segmentation models to analyse high-resolution earth observation data: new tools to monitor disease risks in changing environments

استخدام نماذج تجزئة الصور لتحليل بيانات مراقبة الأرض عالية الدقة: أدوات جديدة لرصد مخاطر الأمراض في البيئات المتغيرة
Authors: Fedra Trujillano; G. Jiménez; Luis Edgar Tarazona-Manrique; Najat F. Kahamba; Fredros O. Okumu; Nombre Apollinaire; Gabriel Carrasco-Escobar; +2 Authors

Using image segmentation models to analyse high-resolution earth observation data: new tools to monitor disease risks in changing environments

Abstract

Abstract Background In the near future, the incidence of mosquito-borne diseases may expand to new sites due to changes in temperature and rainfall patterns caused by climate change. Therefore, there is a need to use recent technological advances to improve vector surveillance methodologies. Unoccupied Aerial Vehicles (UAVs), often called drones, have been used to collect high-resolution imagery to map detailed information on mosquito habitats and direct control measures to specific areas. Supervised classification approaches have been largely used to automatically detect vector habitats. However, manual data labelling for model training limits their use for rapid responses. Open-source foundation models such as the Meta AI Segment Anything Model (SAM) can facilitate the manual digitalization of high-resolution images. This pre-trained model can assist in extracting features of interest in a diverse range of images. Here, we evaluated the performance of SAM through the Samgeo package, a Python-based wrapper for geospatial data, as it has not been applied to analyse remote sensing images for epidemiological studies. Results We tested the identification of two land cover classes of interest: water bodies and human settlements, using different UAV acquired imagery across five malaria-endemic areas in Africa, South America, and Southeast Asia. We employed manually placed point prompts and text prompts associated with specific classes of interest to guide the image segmentation and assessed the performance in the different geographic contexts. An average Dice coefficient value of 0.67 was obtained for buildings segmentation and 0.73 for water bodies using point prompts. Regarding the use of text prompts, the highest Dice coefficient value reached 0.72 for buildings and 0.70 for water bodies. Nevertheless, the performance was closely dependent on each object, landscape characteristics and selected words, resulting in varying performance. Conclusions Recent models such as SAM can potentially assist manual digitalization of imagery by vector control programs, quickly identifying key features when surveying an area of interest. However, accurate segmentation still requires user-provided manual prompts and corrections to obtain precise segmentation. Further evaluations are necessary, especially for applications in rural areas.

Keywords

Cartography, Artificial intelligence, Land cover, Geospatial analysis, UAV, Climate Change, Computer applications to medicine. Medical informatics, R858-859.7, Mosquito Vectors, FOS: Health sciences, Citizen science, Segment anything model, Segmentation, Health Sciences, Image Processing, Computer-Assisted, Humans, Animals, Global Impact of Arboviral Diseases, Remote sensing., Biology, Geography, Ecology, Python (programming language), Methodology, Public Health, Environmental and Occupational Health, Botany, Remote sensing, Computer science, Drone, Malaria, Operating system, Infectious Diseases, FOS: Biological sciences, Remote Sensing Technology, Land use, Geographic Information Systems, Medicine, Mosquito-borne diseases, Viral Hemorrhagic Fevers and Zoonotic Infections, Geographic information system

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
1
Average
Average
Average