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Wavelets:

Wavelets:. Mathematical representation tool. Decomposes into layers corresponding to features at different scales. Particularly useful for signal analysis (images, sonar data, …). Compression. Compression Ratio: 3.3%. Compression Ratio: 10%. Fast adapted retrieval. Wavelets:.

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Wavelets:

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  1. Wavelets: • Mathematical representation tool • Decomposes into layers corresponding to features • at different scales • Particularly useful for signal analysis • (images, sonar data, …)

  2. Compression

  3. Compression Ratio: 3.3%

  4. Compression Ratio: 10%

  5. Fast adapted retrieval

  6. Wavelets: • Representation specially suitable for images • Compression • Zoom-in capability

  7. wavelet reconstruction compression ratio=18:1 original Courtesy of Chris Brislawn LANL

  8. another sample Courtesy of Chris Brislawn LANL

  9. zoom-in Courtesy of Chris Brislawn LANL

  10. original compressed using wavelets compression ratio=15:1 Courtesy of Chris Brislawn LANL

  11. compressed using wavelets compression ratio=19:1 compressed using JPEG compression ratio=19.6:1 Courtesy of Chris Brislawn LANL

  12. - fast retrieval Fingerprints: • Digitally stored • Compressed - fast search

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