Orthogonal Wavelet Coefficient Precision and Fixed Point Representation
نویسندگان
چکیده
The Discrete Wavelet Transform (DWT) is an important transform with many signal processing applications, most notably, compression. Many architectures have been proposed to perform DWT, but few address the precision of the coefficients necessary to ensure perfect reconstruction. The goal of this work is to experimentally determine the precision of the filter coefficients (for an orthogonal wavelet) needed to compute the 2-D DWT without introducing roundoff error via the filter.
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تاریخ انتشار 2002