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EcoVision: AI-Powered Drone Imaging for Salt Marsh Vegetation Monitoring and Dominance Mapping

Innocent Onyenonachi, Peter J. Lawerance, Nadia Kanwal

Featured July 20, 2026

Original Paper

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Simply

EcoVision uses drones to take super-detailed pictures of salt marshes, then smart computer programs identify different plants and measure how much space each type covers, making it easier to track marsh health.

In depth
The EcoVision framework introduces a novel end-to-end pipeline for high-resolution salt marsh monitoring. It integrates transformer-based semantic segmentation (SegFormer) for pixel-level vegetation delineation with ConvNeXt-based object classification for fine-grained species identification. Crucially, it translates these deep learning outputs into ecologically interpretable dominance scores at a 2 × 2 m patch scale, directly comparable to traditional field surveys.

Key Takeaways

  • 1
    The paper presents EcoVision, an end-to-end UAV-AI pipeline that automates high-resolution salt marsh vegetation monitoring, bridging the gap between raw imagery and actionable ecological insights.
  • 2
    It leverages SegFormer-B5 for accurate pixel-level semantic segmentation of vegetation and ConvNeXt for robust object-level classification of target species, addressing challenges like overlapping canopies and background noise.
  • 3
    A key innovation is the 2 × 2 m patch-based dominance framework, which aggregates AI predictions into quantitative species dominance scores, aligning with established ecological survey guidelines and providing scalable, policy-aligned metrics.

Conceptual Flow

HIGH LEVEL
1
Methodology: AI-Powered Ecological Monitoring

Drones take pictures, computers find plants and their types, then measure how much of each plant is in different areas, just like scientists do by hand.

Drone Pictures
Analyze with AI
Plant Maps
Dominance Scores
2
Results: Accurate Plant Dominance Maps

The computer's plant maps and measurements were almost exactly the same as what scientists found by walking through the marsh, but much faster.

AI Plant Map
Field Survey Map
Compare Results
High Agreement
Low Error