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Auteur Chih-Cheng Chen |
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A robust digital watermarking algorithm for copyright protection of aerial photogrammetric images / Pai-Hui Hsu in Photogrammetric record, vol 31 n° 153 (March - May 2016)
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Titre : A robust digital watermarking algorithm for copyright protection of aerial photogrammetric images Type de document : Article/Communication Auteurs : Pai-Hui Hsu, Auteur ; Chih-Cheng Chen, Auteur Année de publication : 2016 Article en page(s) : pp 51 - 70 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique
[Termes IGN] appariement d'images
[Termes IGN] droit d'auteur
[Termes IGN] image aérienne
[Termes IGN] méthode robuste
[Termes IGN] tatouage numérique
[Termes IGN] transformation en ondelettesRésumé : (Auteur) Current research on digital watermarking for the copyright protection of digital multimedia data has led to fairly advanced techniques with fruitful results. However, there remains a lack of research on digital watermarking for geospatial data, which is very costly to produce but is of great importance and with wide application. In this study an analysis and discussion of digital watermarking is carried out for digital aerial photogrammetric images. Focusing on the requirements for the main applications of such images, a feature-based digital watermarking algorithm is proposed. Testing and analysis of the robustness of the watermark is performed to achieve the goal of copyright protection, even after image processing and geometric transformation have been undertaken on the watermarked image. Furthermore, the image quality is (almost) preserved to avoid detrimental effects on subsequent applications. The experimental results prove that the proposed watermarking method has a certain degree of robustness and can resist most types of image-processing and geometric attacks, while maintaining the data quality of the aerial images. Numéro de notice : A2016-161 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.1111/phor.12134 Date de publication en ligne : 29/02/2016 En ligne : https://doi.org/10.1111/phor.12134 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=80461
in Photogrammetric record > vol 31 n° 153 (March - May 2016) . - pp 51 - 70[article]Réservation
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