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A Two-Stage Deep Learning Pipeline for Underwater Quadrat Recognition

  • Journal of Internet of Things and Convergence
  • Abbr : JKIOTS
  • 2026, 12(1), pp.139~145
  • Publisher : The Korea Internet of Things Society
  • Research Area : Engineering > Computer Science > Internet Information Processing
  • Received : January 23, 2026
  • Accepted : February 20, 2026
  • Published : February 28, 2026

Tae Woo Kim 1 Gyeongmin Kim 1

1제주대학교

Accredited

ABSTRACT

Marine ecosystem surveys record benthic community information such as percent cover within a standardized area using photoquadrat based surveys, but automation is required because interior delineation and annotation are repeated. This study proposes a two stage pipeline that combines object detection with prompt based segmentation to delineate the quadrat interior in underwater quadrat images. In Stage 1, a YOLO11 based detector estimates the quadrat bounding box. In Stage 2, the estimated box is used as a box prompt for AquaSAM to generate an interior mask. AquaSAM was fine tuned on the SUIM dataset. When the integrated pipeline was applied, masks were generated for most test images, but continuity and completeness decreased under seaweed occlusion, reflections, and low contrast, and partial omissions occurred. This demonstrates feasibility, but improved robustness and broader quantitative evaluation are needed to reduce quality variation across scene conditions.

Citation status

* References for papers published after 2024 are currently being built.

This paper was written with support from the National Research Foundation of Korea.