Conference on New Techniques and Technologies for official Statistics (NTTS 2025)
Description : Slide deck for the NTTS 2025 conference.
12 Mar 2025
Project summary
| Using satellite images for official statistics | |
|---|---|
| Project details | At the end of 2022, an experimental working group on the use of satellite data for official statistics was launched. The aim of this initiative was to improve the organisation of mapping surveys in overseas departments particularly in French Guiana and Mayotte. These surveys are used to update the individual/housing register (RIL) each year, and make it easier to identify new spontaneous or temporary housing areas in advance of the surveys. Algorithms applied to satellite photographs are used to identify such areas, which in a given year will require more surveyors than in the previous year. The project is presented in more detail here. |
| Actors | Insee (DG and RĂ©union-Mayotte Interregional Directorate) |
| Project results | The results of the project are presented in more detail on the dedicated website. The experimentation phase ended with: - The transmission of building evolution statistics in Mayotte. These statistics were used to organise the 2024 complementary mapping survey in Mayotte; - The development of a visualisation application integrating background maps built from Pleiades tiles and buildings detected on these tiles using our algorithms, as well as change detection layers; - The creation of thePython package for processing satellite images Astrovision |
| Project code | - https://github.com/InseeFrLab/astrovision : Python package package for working with satellite data: - https://inseefrlab.github.io/satellite-images-webapp/ code of theviewing application - https://github.com/InseeFrLab/satellite-images-preprocess code of data pre-processing - https://github.com/InseeFrLab/satellite-images-train code for themodel training - https://github.com/InseeFrLab/satellite-images-inference code for theinference |
