UDP to detect ship using Sentinel-1 and Sentinel-2 fusion - #655
Open
firzaariany wants to merge 2 commits into
Open
UDP to detect ship using Sentinel-1 and Sentinel-2 fusion#655firzaariany wants to merge 2 commits into
firzaariany wants to merge 2 commits into
Conversation
36 tasks
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Adds an algorithm that fuses Sentinel-1 GRD and Sentinel-2 L1C imagery to detect ships at sea as an openEO UDP.
The openEO process is adapted from the Ship Detection (S1/S2) evalscript by Monja B. Šebela. Each pixel is classified by combining a Sentinel-2 NDWI water mask with Sentinel-1 backscatter: NDWI above 0.1 marks water, and within water pixels, a VV or VH backscatter return above 0.3 flags a ship. Ship pixels render pure white; all other pixels fall back to an enhanced-color Sentinel-2 composite (water tinted slightly bluer for context).
The openEO process runs on the Copernicus Data Space Ecosystem, and has been validated over three ship-traffic hotspots: Zhenjiang on the Yangtze River, China (2026-03-27 to 2026-03-30), the Singapore Strait anchorage (2026-03-20 to 2026-03-25), and the Sunda Strait shipping/ferry waterway, in Indonesia (2026-03-13 to 2026-03-16).