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Evaluation of JPEG-LS, the new lossless and controlled-lossy still image compression standard, for compression of high-resolution elevation data / S.D. Raney in IEEE Transactions on geoscience and remote sensing, vol 39 n° 10 (October 2001)  

Public [article]  inIEEE Transactions on geoscience and remote sensing > vol 39 n° 10 (October 2001) . - pp 2298 - 2306 Titre : Evaluation of JPEG-LS, the new lossless and controlled-lossy still image compression standard, for compression of high-resolution elevation data Type de document : Article/Communication Auteurs : S.D. Raney, Auteur ; G. Sapiro, Auteur Année de publication : 2001 Article en page(s) : pp 2298 - 2306 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie numérique [Termes IGN] compression d'image [Termes IGN] données altimétriques [Termes IGN] modèle numérique de surface Résumé : (Auteur) The compression of elevation data is studied in this paper. The performance of JPEG-LS, the new international ISO/ITU standard for lossless and near-lossless (controlled-lossy) still-image compression, is investigated both for data from the USGS digital elevation model (DEM) database and the navy-provided digital terrain model (DTM) data. Using JPEG-LS has the advantage of working with a standard algorithm. Moreover, in contrast with algorithms like the popular JPEG-lossy standard, this algorithm permits the completely lossless compression of the data as well as a controlled lossy mode where a sharp upper bound on the elevation error is selected by the user. All these are achieved at a very low computational complexity. In addition to these algorithmic advantages, we show that JPEG-LS achieves significantly better compression results than those obtained with other (non-standard) algorithms previously investigated for the compression of elevation data. The results here reported suggest that JPEG-LS can immediately be adopted for the compression of elevation data for a number of applications. Numéro de notice : A2001-097 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/36.957293 En ligne : https://doi.org/10.1109/36.957293 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=21797 [article]

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