AI4Copernicus – Sentinel-1 Change Detection (Security Bootstrapping services)
The Security Bootstrapping services and resources have been developed in order to support the AI4Copernicus project’s open calls by reducing the time and resources of the bidders in the data preparation and allowing them to focus on the development of innovative services based on AI. This pipeline processes pairs of S1 SLC products in native format to generate a series of products to assess the changes between both images.
The Sentinel-1 Change Detection resource is available as a dockerized application. It is one of the Security Bootstrapping Services developed in AI4Copernicus.
The pipeline generates a series of products to assess the changes between both images. These products include:
- the coherence (the amplitude of correlation between the images),
- the ACD (Amplitude Change Detection), which is a RGB composite of the backscatter of the input images
- the MTC (Multi-Temporal Coherence), which is a RGB composite of the backscatters and the coherence
The input of this pipeline is a pair of Sentinel-1 SLC product in their native SENTINEL-SAFE format (zipped or unzipped product are both supported). The inputs shall be acquired with the same acquisition geometry (i.e. same relative orbit).
Several parameters are exposed (e.g. resolution, speckle), including when possible, a default value to facilitate the use by non-expert users.