Reef Scene Understanding

Why it matters

Coral reef surveys produce far more images than experts can label. Our point-label-aware superpixels and human-in-the-loop methods turn 5 to 25 labelled points per image into dense segmentation, and image-level labels alone are enough for coarse seagrass mapping. We have also surveyed label-efficient underwater scene understanding and shown how strongly domain and species affect object detection performance.