A perfect reconstruction polyphase filter bank structure is presented in which the filters adapt to the changing input conditions. The use of such a filter bank leads to higher compression results for images containing sharp edges such as fingerprint images.
Inspec keywords: least mean squares methods; filtering theory; image coding; data compression; adaptive filters; fingerprint identification
Other keywords:
Subjects: Interpolation and function approximation (numerical analysis); Computer vision and image processing techniques; Information theory; Optical information, image and video signal processing; Interpolation and function approximation (numerical analysis); Codes; Pattern recognition
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