AbstractThe use of shore-based video systems has become a very popular and accessible low-cost tool for coastal monitoring given their capability to deliver continuous and high-resolution temporal data over large enough spatial scales. However, the reliability of the final image products can be compromised by external factors, sometimes overlooked, that can alter the image geometry over time. In particular, unwanted camera movement, produced either by thermal or mechanical effects, can lead to significant geo-rectification errors if not properly corrected. This study addresses an alternative straightforward method to stabilize an either continuous or subsampled image sequence based on state-of-the-art techniques and available routines.
Recorded Presentation from the vICCE (YouTube Link): https://youtu.be/xX1CrvPQpK8
Bouvier, Balouin, Castelle, Holman (2019): Modelling camera viewing angle deviation to improve nearshore video, Coastal Engineering, vol. 147, pp. 99-106.
Guizar-Sicairos, Thurman, Fienup (2008): Efficient subpixel image registration algorithms, Optics Letters, vol. 33(2), pp. 156-158.
Holman and Stanley (2007): The history and technical capabilities of Argus, Coastal Engineering, vol. 54, pp. 477-491.
Pearre and Puleo (2009): Quantifying Seasonal Shoreline Variability at Rehoboth Beach, Delaware, Using Automated Imaging Techinques, Journal of Coastal Research, vol. 25(4), pp. 900-914.
Vousdoukas, Ferreira, Almeida, Dodet, Psaros, Andriolo, Taborda, Silva, Ruano, Ferreira (2011): Performance of intertidal topography video monitoring of a meso-tidal reflective beach in South Portugal, Ocean Dynamics, vol. 61, pp. 1521-1540.