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Auflistung nach Schlagwort "lossy compression"

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  • Konferenzbeitrag
    Finger-vein Sample Compression in Presence of Pre-Compressed Gallery Data
    (BIOSIG 2018 - Proceedings of the 17th International Conference of the Biometrics Special Interest Group, 2018) Lipowski, Tamara; Maser, Babak; Hämmerle-Uhl, Jutta; Uhl, Andreas
    Compression settings for sample (probe) finger vein data in case of already pre-compressed gallery data are investigated. Inhomogeneous compression scenarios are assessed where probe data can be compressed with different compression technique and compression ratio compared to gallery data using 4 lossy compression schemes, 2 finger vein recognition schemes, and 2 data sets. Results obtained indicate that in case of JPEG2000 pre-compressed gallery, also sample images should be compressed in the same manner, while for JPEG pre-compressed gallery, the optimal sample compression setting depends on the dataset, on the target compression ratio, and on the recognition scheme employed.