Piercing the Gloom: AI Sharpens Underwater Vision
Source PublicationScientific Reports
Primary AuthorsPraveena, Sripada, Laxmi Lydia et al.

The murky depths of our oceans have long confounded computer vision. Between light attenuation and the distorting effects of water, standard cameras often struggle to distinguish a shipwreck from a geological formation. However, a new computational approach promises to lift the veil on the deep. Researchers have unveiled the DEINED-DRLOL technique, a rather complex acronym that delivers a masterclass in underwater clarity.
At the heart of this system lies a sophisticated three-pronged attack on visual noise. First, it utilises the Dense Extreme Inception Network (DexiNed) to perform edge detection. Think of this as sketching a crisp outline around a blurry shape to define its boundaries. Once the form is isolated, the system employs YOLOv5—a standard-bearer in rapid object detection—to pinpoint the target's location within the frame.
The final flourish is the application of Q-Reinforcement Learning (QRL) for classification. Here, the software does not merely guess; it learns through a reward-based trial and error process to categorise objects with increasing precision. Whether spotting delicate marine ecosystems or identifying human-made debris, the algorithm adapts to the aquatic environment. The results are striking: in comparative studies, this hybrid method achieved an accuracy of 92.67%, leaving previous models in its wake. As we look to map the ocean floor or maintain subsea infrastructure, such sharp-eyed AI will be indispensable.