This HTML5 document contains 59 embedded RDF statements represented using HTML+Microdata notation.

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Statements

Subject Item
dbr:Wavelet_Scalar_Quantization
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yago:Format106636806 dbo:Software yago:Indication106797169 yago:Fingerprint106644393 yago:BiometricIdentification106424275 yago:WikicatFingerprints yago:Identification106885083 yago:Message106598915 yago:Information106634376 yago:Evidence106643408 yago:Abstraction100002137 yago:Rule105846932 yago:Activity100407535 yago:Event100029378 yago:YagoPermanentlyLocatedEntity yago:PsychologicalFeature100023100 yago:Mark106798750 yago:WikicatGraphicsFileFormats yago:Communication100033020 yago:WikicatLossyCompressionAlgorithms yago:Act100030358 yago:Procedure101023820 yago:Algorithm105847438
rdfs:label
Wavelet scalar quantization
rdfs:comment
The Wavelet Scalar Quantization algorithm (WSQ) is a compression algorithm used for gray-scale fingerprint images. It is based on wavelet theory and has become a standard for the exchange and storage of fingerprint images. WSQ was developed by the FBI, the Los Alamos National Laboratory, and the National Institute of Standards and Technology (NIST). Most American law enforcement agencies use WSQ for efficient storage of compressed fingerprint images at 500 pixels per inch (ppi). For fingerprints recorded at 1000 ppi, law enforcement (including the FBI) uses JPEG 2000 instead of WSQ.
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The Wavelet Scalar Quantization algorithm (WSQ) is a compression algorithm used for gray-scale fingerprint images. It is based on wavelet theory and has become a standard for the exchange and storage of fingerprint images. WSQ was developed by the FBI, the Los Alamos National Laboratory, and the National Institute of Standards and Technology (NIST). This compression method is preferred over standard compression algorithms like JPEG because at the same compression ratios WSQ doesn't present the "blocking artifacts" and loss of fine-scale features that are not acceptable for identification in financial environments and criminal justice. Most American law enforcement agencies use WSQ for efficient storage of compressed fingerprint images at 500 pixels per inch (ppi). For fingerprints recorded at 1000 ppi, law enforcement (including the FBI) uses JPEG 2000 instead of WSQ.
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