UNIONE EUROPEA REPUBBLICA ITALIANA REGIONE LIGURIA

Azione 1.2.2

“Ricerca industriale e sviluppo sperimentale a favore delle imprese del Distretto Ligure per le Tecnologie Marine (D.L.T.M)”

GUARD-1Autonomous system for the acquisition and recognition of

high resolution underwater images

Stand-alone device integrating:

• image acquisition hardware module

acquires and stores images

• pattern recognition software module

recognizes the jellies inside an image (if any)

On dvanced ndustrial esearch

GUARD-1 for monitoring gelatinous zooplankton

• Low cost, low power autonomous system for image acquisition and recognition

• To be installed on autonomous vehicles, such as Argo, Glider

• To be used for real-time detection of jellies within images

Stand-alone system

Long lasting missions

Low cost

Underwater image acquisition and recognition

Problems dealing with jellies:

• huge variety of species and shapes

• non-rigid shape

• almost transparent body

• difficult lighting conditions

It is very difficult to identify the features that discriminate the jellies from other subjects

Automatic recognition algorithms

• Supervised statistical learning (Viola & Jones)no a priori knowledge about shapes is needed

• Block Detection & Shape Analysis)shape detected and recognised by pre-defined rules