244
C. Noël et al.
• Side scan sonar mosaic, the grey scale giving information about seabed reflectivity
and consequently about its nature (vegetal or not)
• Information of presence or lake of vegetation given by the DIVA method
Concept of multi sensors dataset fusion is very powerful and innovative.
It allows producing like in medical applications, very accurate 3D scan pictures
of seabed derived from different sources (side-scan, multi-beams, echo sounder)
and information (aerial pictures, classification methods results, divers/video observations . . . ). Power of data fusion concept remains on the quality of the data and on
their complementarities. In this context such a mini-survey unit, able to operate and
synchronize several complementary high resolution acoustic sensors simultaneously,
and to precisely process motion and geo-positioning, appears as a very efficient tool
in the crucial data collection first step of the data fusion process.
It allows realizing biocenotic maps very accurately with very few needs in term
of human field observations (divers, camera). Obtained levels of accuracy and resolution are such that these methods allows to realize extremely accurate models of
the underwater landscape from which we make diving spot 3D models in order to
support environmental issues awareness and to give a help for scuba divers training
staffs.
These precise data have also been used, in collaboration with VIRTUAL DIVE
company, to make 4D model in the context of ANR “Digita Ocean” research project
(video available on http://www.digitalocean.fr/).
References
Chivers RC, Emerson N, Burns DR (1990) New acoustic processing for underway surveying.
Hydrogr J 56:8–17
Noël C, Viala C, Coquet M, Zerr B, Perrot T (Paris, du 28/06 au 04/07/2008) Acoustic data fusion
devoted to underwater vegetation mapping. ECUA—SFA
Noël C, Viala C, Coquet M, Marchetti S, Bauer E, Emery E, Sauzade D, Kantin R, Coudray S, Trut
G (2010) Comparison of coastal marine vegetation mapping method. Paralia éditions
Viala C, Noël C, Coquet M, Zerr B, Lelong P, Bonnefont JL (2007, Mar) Pertinence de la méthode
DIVA pour l’interprétation des mosa¨ ıques sonar latéral. Third Mediterranean Symposium on
Marine Vegetation, Marseille
Viala C, Noël C, Coquet M, Marchetti S, Emery E, Kantin R, Trut G, Dalloyau S, Plus M (2009) Cartographie de l’herbier à zostera marina du bassin d’Arcachon par fusion multi-capteurs. Colloque
CARHAMB’AR—Brest, 3–5 février 2009. CARtographie des HAbitats Marins Benthiques: de
l’Acquisition à la Restitution
C. Noël et al.
• Side scan sonar mosaic, the grey scale giving information about seabed reflectivity
and consequently about its nature (vegetal or not)
• Information of presence or lake of vegetation given by the DIVA method
Concept of multi sensors dataset fusion is very powerful and innovative.
It allows producing like in medical applications, very accurate 3D scan pictures
of seabed derived from different sources (side-scan, multi-beams, echo sounder)
and information (aerial pictures, classification methods results, divers/video observations . . . ). Power of data fusion concept remains on the quality of the data and on
their complementarities. In this context such a mini-survey unit, able to operate and
synchronize several complementary high resolution acoustic sensors simultaneously,
and to precisely process motion and geo-positioning, appears as a very efficient tool
in the crucial data collection first step of the data fusion process.
It allows realizing biocenotic maps very accurately with very few needs in term
of human field observations (divers, camera). Obtained levels of accuracy and resolution are such that these methods allows to realize extremely accurate models of
the underwater landscape from which we make diving spot 3D models in order to
support environmental issues awareness and to give a help for scuba divers training
staffs.
These precise data have also been used, in collaboration with VIRTUAL DIVE
company, to make 4D model in the context of ANR “Digita Ocean” research project
(video available on http://www.digitalocean.fr/).
References
Chivers RC, Emerson N, Burns DR (1990) New acoustic processing for underway surveying.
Hydrogr J 56:8–17
Noël C, Viala C, Coquet M, Zerr B, Perrot T (Paris, du 28/06 au 04/07/2008) Acoustic data fusion
devoted to underwater vegetation mapping. ECUA—SFA
Noël C, Viala C, Coquet M, Marchetti S, Bauer E, Emery E, Sauzade D, Kantin R, Coudray S, Trut
G (2010) Comparison of coastal marine vegetation mapping method. Paralia éditions
Viala C, Noël C, Coquet M, Zerr B, Lelong P, Bonnefont JL (2007, Mar) Pertinence de la méthode
DIVA pour l’interprétation des mosa¨ ıques sonar latéral. Third Mediterranean Symposium on
Marine Vegetation, Marseille
Viala C, Noël C, Coquet M, Marchetti S, Emery E, Kantin R, Trut G, Dalloyau S, Plus M (2009) Cartographie de l’herbier à zostera marina du bassin d’Arcachon par fusion multi-capteurs. Colloque
CARHAMB’AR—Brest, 3–5 février 2009. CARtographie des HAbitats Marins Benthiques: de
l’Acquisition à la Restitution