Advances in micro-cartography: A two-dimensional photo mosaicing technique for seagrass monitoring

Rende, Sante Francesco; Irving, Andrew D.; Bacci, Tiziano; Parlagreco, Luca; Bruno, Fabio; Filippo, Francesco De; Montefalcone, Monica; Penna, Marina; Trabucco, Benedetta; Mento, Rossella Di; Cicero, Anna Maria

doi:10.1016/j.ecss.2015.10.029

Cited by 25 publications

(19 citation statements)

References 65 publications

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“…Georeferenced underwater photogrammetry is rarer. It may be performed by unmanned vehicles such as AUVs through their navigation system (Kwasnitschka et al., ), or by underwater ROVs with acoustic transducers (Drap et al., ) and towed devices (Rende et al., 2015a). Although producing high‐resolution orthophotographs and 3D models, these techniques have a low positioning accuracy, of the order of several metres, due to the distance between the AUV/ROV and the main ship providing geolocation for the first two (Paull et al., ); and the uncertainties generated by the length and angle of the cable towing the device for the latter (El‐Hawary, ).…”

Section: Discussionmentioning

confidence: 99%

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Georeferenced underwater photogrammetry to map marine habitats and submerged artificial structures

Abadie¹,

Boissery

Viala³

2018

The Photogrammetric Record

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Over the past decade, underwater photogrammetry has been experiencing an increased interest due to the enhancement of camera performance and computing power. This study describes the test of two new methods to perform georeferenced underwater photogrammetry. The first one uses the coupling between photogrammetry by scuba diving and positioning with acoustic data from a multibeam echo sounder; the second one utilises direct positioning technology with a surface floating device (photogrammetric platform). When compared with one another, the platform had a higher mapping efficiency, while being limited by depth and underwater visibility. Georeferenced underwater photogrammetry is expected to have a wide range of applications in the field of marine habitats’ conservation such as seagrass meadows and the survey of submerged man‐made structures such as artificial reefs and port infrastructure.

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Section: Discussionmentioning

confidence: 99%

“…As mentioned earlier, its main current use concerns submerged archaeological sites (Drap et al., ). However, it may be used for other purposes and more specifically in the field of seascape studies (Rende et al., 2015a) and the survey of artificial underwater structures.…”

Section: Discussionmentioning

confidence: 99%

Georeferenced underwater photogrammetry to map marine habitats and submerged artificial structures

Abadie¹,

Boissery

Viala³

2018

The Photogrammetric Record

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“…Mediante le coordinate GPS sono state georeferenziate le immagini, applicando la procedura di taggatura delle foto tramite l'ausilio di un software di geotagging. Le acquisizioni sono state effettuate mediante l'impiego di veicolo al traino munito di apparecchiature video-fotografiche "telecamere verticali" (HD) ad alta risoluzione, di proprietà dell'ISPRA [5]. Per quanto riguarda le elaborazioni aereo fotogrammetriche, è stato impiegato un software di modeling 3D.…”

Section: Progetto Musmapunclassified

L’applicazione di tecniche innovative nel monitoraggio costiero degli habitat prioritari

Cellini

Pirrera

Stocco

2020

Proceedings E Report

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The aim of the present paper is to define the advantage to use innovative techniques based on sperimental tool to supplement the traditional techniques in marine monitoring, through experience of CRSM-ARPACAL (Centro Regionale Strategia Marina) into two regional projects called "SIC Carlit" and "Musmap". Both projects have shown that in the monitoring of coastal marine ecosystems the sperimental techniques to supplement traditional methods can provide more accurate and data with reduced costs and times of work.

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“…Mosaicing has long been a popular topic of research in the underwater vision community for the mapping of the seafloor from cameras mounted on remotely operated vehicles or autonomous underwater vehicles (AUVs). However, in recent years, underwater mosaics have been used to monitor the condition of the seafloor and the health of benthic flora and fauna [9], [35]- [38].…”

Section: Mosaicing Of Underwater Videomentioning

confidence: 99%

A Low-Complexity Mosaicing Algorithm for Stock Assessment of Seabed-Burrowing Species

Corrigan

Sooknanan

Doyle

et al. 2019

IEEE J. Oceanic Eng.

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This paper proposes an algorithm for mosaicing videos generated during stock assessment of seabed-burrowing species. In these surveys, video transects of the seabed are captured and the population is estimated by counting the number of burrows in the video. The mosaicing algorithm is designed to process a large amount of video data and summarize the relevant features for the survey in a single image. Hence, the algorithm is designed to be computationally inexpensive while maintaining a high degree of robustness. We adopt a registration algorithm that employs a simple translational motion model and generates a mapping to the mosaic coordinate system using a concatenation of frame-by-frame homographies. A temporal smoothness prior is used in a maximum a posteriori homography estimation algorithm to reduce noise in the motion parameters in images with small amounts of texture detail. A multiband blending scheme renders the mosaic and is optimized for the application requirements. Tests on a large data set show that the algorithm is robust enough to allow the use of mosaics as a medium for burrow counting. This will increase the verifiability of the stock assessments as well as generate a ground truth data set for the learning of an automated burrow counting algorithm.

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Advances in micro-cartography: A two-dimensional photo mosaicing technique for seagrass monitoring

Cited by 25 publications

References 65 publications

Georeferenced underwater photogrammetry to map marine habitats and submerged artificial structures

Georeferenced underwater photogrammetry to map marine habitats and submerged artificial structures

L’applicazione di tecniche innovative nel monitoraggio costiero degli habitat prioritari

A Low-Complexity Mosaicing Algorithm for Stock Assessment of Seabed-Burrowing Species

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