Feature-matching based overlay of 7 years of high-resolution imagery collected by the TEMPO ecological module (EMSO-Azores observatory)

Date 2022-03-31
Temporal extent 2012-07-23 -2019-06-10
Author(s) Van Audenhaege LoicORCID1, Matabos MarjolaineORCID1, Gautier LaurentORCID2, Legrand JulienORCID2, Sarradin Pierre-MarieORCID1, Sarrazin JozeeORCID1
Affiliation(s) 1 : Univ Brest, CNRS, Ifremer, UMR6197 BEEP, F-29280 Plouzané, France
2 : Ifremer, REM/RDT/SIIM, F-29280 Plouzané, France
DOI 10.17882/87389
Publisher SEANOE
Keyword(s) Mid-Atlantic Ridge, Lucky Strike, Eiffel Tower, TEMPO, Spatio-temporal continuity, Homography, Feature matching, Time series, Underwater imagery, Deep-sea observatory, High-resolution monitoring, Long-term monitoring

The dataset contains raw screenshots retrieved from video sequences collected by the TEMPO ecological module from 2012 to 2019 at a frequency from infra-daily to 10 days (base of the Eiffel Tower hydrothermal edifice, Lucky Strike, Mid-Atlantic Ridge, depth of 1695m). These screenshots were all transformed in a continuous spatio-temporal image reference system. This homography transformation was calculated by a combination of feature-matching algorithm and manual annotation of keypoints. All homography transformation matrices and images transformed are included.

The dataset is accompanied with a read me to describe the structure of each data. Please contact Loïc Van Audennhaege for further information on the workflow.

Licence CC-BY
Acknowledgements We acknowledge financial support from the EMSO France Research Infrastructure. This regional facility is included within the EU EMSO-ERIC (http://www.emso-eu.org/). The MoMARSAT cruises were funded by the French National Oceanographic Fleet, EMSO-Eric and data processing by the ANR Lucky Scales (ANR-14-CE02-0008-02). This work and LVA’s PhD thesis were supported by the European Union's Horizon 2020 research and innovation project iAtlantic under Grant Agreement No. 818123.
Sensor metadata

The TEMPO ecological module is equiped with a SMOOVE camera and is part of the EMSO-Azores observatory (SeaMON West node).

File Size Format Processing Access
Screenshots (1920x1090 pixels) collected from video sequences recorded by the TEMPO ecological module 720 MB IMAGE Raw data Open access
Help file to allow the user to better navigate among files and understand their structures 15 KB DOC, DOCX Open access
The final image reference system (3127x2159 pixels) in which all possible fields of view (2012-2019) recorded by TEMPO were overlaid. 1 MB IMAGE Processed data Open access
Homography transformation matrices (3x3) compiling the final, interperiod and intraperiod transformation for each picture (see the read me file) 2 MB TEXTE Processed data Open access
Transformed images (3127x2159 pixels) 1 GB IMAGE Processed data Open access
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How to cite 

Van Audenhaege Loic, Matabos Marjolaine, Gautier Laurent, Legrand Julien, Sarradin Pierre-Marie, Sarrazin Jozee (2022). Feature-matching based overlay of 7 years of high-resolution imagery collected by the TEMPO ecological module (EMSO-Azores observatory). SEANOE. https://doi.org/10.17882/87389