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Journals and Conferences
Here, we present a modi"cation of Shapiro's embedded zerotree wavelet algorithm (EZW) for image codec. Shapiro's technique is based on the wavelet transform and on the self-similarity inherent in images. In the EZW, the wavelet transform (WT) coe$cients, which provide a multiresolution representation of the image, are arranged according to their signi"cance… (More)
The fringe pattern produced in a double-exposure hologram by thermal expansion of anisotropic flat plates is theoretically attained and experimentally checked.
The displacement on a plane, originated by a temperature increase of three perpendicular flat plates, is measured by means of a double exposure hologram. These displacements allow us to calculate the thermal expansion tensor of an anisotropic material.
The fringe pattern produced in a double-exposure hologram by thermal expansion of isotropic flat plates is theoretically attained and experimentally checked. The change of fringe shape as a function of the observation distance is analyzed.
INTRODUCTION In Spain, current legislation does not allow to dispense drugs without medical prescription. There are no drugs totally exempt of producing secondary effects, the inappropriate use of antibiotics may lead to emergent resistances and it causes an unjustified expenditure. OBJECTIVES To determine whether drugs for pediatric use are being… (More)