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

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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.

Data and resources

Raw data

Screenshots (1920x1090 pixels) collected from video sequences recorded by the TEMPO ecological module - 720 MB

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Unnamed resource

Help file to allow the user to better navigate among files and understand their structures - 15 KB

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Processed data

The final image reference system (3127x2159 pixels) in which all possible fields of view (2012-2019) recorded by TEMPO were overlaid. - 1 MB

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Processed data

Homography transformation matrices (3x3) compiling the final, interperiod and intraperiod transformation for each picture (see the read me file) - 2 MB

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Processed data

Transformed images (3127x2159 pixels) - 1 GB

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DOI of the product

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Seanoe

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Additional information

Temporal extent	2012-07-23 – 2019-06-10
Date (publication)	2022-03-31
Date (revision)	2025-12-24
Status	onGoing
Update frequency	asNeeded
Metadata language	en
License	CC-BY (Creative Commons - Attribution)
Source metadata	ISO 19115 XML
Last updated	2026-11-04
Created	2026-11-04
API	package_show